KET-3000W1 AC Drive User Manual - KOMAL · PDF fileKET-3000W1 AC Drive ... confirming that the...

KOMAL ELECTROTECH

KET-3000W1 AC Drive

Providing Solutions Worldwide

User Manual

KET

KET

Preface

Thank you for using this Sensorless Vector Control Variable Speed Drive. This KET-3000W1 achieves high

performance by using a unique control method to achieve high torque, high accuracy and super silent motor control.

The KET-3000W1 is an innovative product with process PI, simple PLC, wobble operation, 16-step speed operation,

flexible input and output terminals, multiple frequency reference sources. Its anti-tripping function and capabilities of

adapting to unstable mains power, high ambient temperature, humidity and dusty environment improves the

product’s reliability noticeably.

This manual provides information on installation, wiring, parameter setting, troubleshooting, and daily maintenance

for the KET-3000W1. Before using the drive, a thorough understanding of this manual is recommended for daily

maintenance, troubleshooting and inspection. Please keep this manual in a secure and convenient place for any

future reference.

The contents in this document are subject to change without notice.

Content

Chapter 1 Unpacking & Inspection ................................................................................... 1

1.1 Items to Check ............................................................................................................................... 1

1.2 Nameplate ...................................................................................................................................... 1

1.3 Model Definition Rules ................................................................................................................... 2

Chapter 2 Safety Precautions ............................................................................................ 3

2.1 Safety ............................................................................................................................................. 3

2.2 Notes for Installation ...................................................................................................................... 3

2.3 Notes for Operation ........................................................................................................................ 4

2.3.1 About Motor and Load ......................................................................................................... 4

2.3.2 About KET-3000W1 ............................................................................................................. 5

2.4 Disposal .......................................................................................................................................... 6

Chapter 3 Installation and Wiring ...................................................................................... 7

3.1 External Dimensions and Mounting Dimensions ........................................................................... 7

3.2 Product Description ........................................................................................................................ 7

3.2.1 KET-3000W1 Specification .................................................................................................. 7

3.2.2 Ratings ................................................................................................................................. 7

3.2.3 Parts of Inverter ................................................................................................................... 8

3.3 Installation Environment ................................................................................................................. 9

3.3.1 Installation Environment Requirement ................................................................................. 9

3.3.2 Ambient Temperature .......................................................................................................... 9

3.3.3 Precautionary Measure ........................................................................................................ 9

3.4 Installation Direction & Space ........................................................................................................ 9

3.5 Wiring ........................................................................................................................................... 10

3.5.1 Wiring Requirement ........................................................................................................... 10

3.5.2 Main Circuit Wiring ............................................................................................................. 13

3.5.3 Main Circuit Terminals Layout and Description ................................................................. 14

3.5.4 Main Circuit Connection ..................................................................................................... 15

3.5.5 Control Terminal Connection ............................................................................................. 19

Chapter 4 Operating Instructions .................................................................................... 29

4.1 Descriptions .................................................................................................................................. 29

4.1.1 KET-3000W1 Run Command Source ............................................................................... 29

4.1.2 KET-3000W1 Frequency Reference Source ..................................................................... 30

4.1.3 KET-3000W1 Running Status............................................................................................ 31

4.1.4 KET-3000W1 Operation mode .......................................................................................... 31

4.2 Operating Instructions .................................................................................................................. 31

4.2.1 Using Keypad ..................................................................................................................... 31

4.2.2 Display of the Keypad ........................................................................................................ 33

4.2.3 Keypad Operation .............................................................................................................. 35

4.3 Start -up. ....................................................................................................................................... 37

4.3.1 Checking Before Start -up. ................................................................................................ 37

4.3.2 Start -up the KET-3000W1 for the first time ...................................................................... 37

Chapter 5 Parameter Introduction ................................................................................... 38

5.1 Protection of Parameters (P0 Group) .......................................................................................... 39

5.2 Basic operating parameters (P1 Group) ...................................................................................... 39

5.3 Frequency reference parameters (P2 Group) .............................................................................. 44

5.4 Motor Parameters (P3 Group) ..................................................................................................... 48

5.5 Vector control parameters (P4 Group) ......................................................................................... 51

5.6 V/F control parameters (P5 Group) .............................................................................................. 53

5.7 START and STOP parameters (P6 Group) .................................................................................. 57

5.8 Acceleration and Deceleration parameters (P7 Group) ............................................................... 61

5.9 PLC Operating parameters (P8 Group) ....................................................................................... 63

5.10 Closed-loop control parameters (P9 Group) .............................................................................. 68

5.11 Wobble operating parameters (PA Group) ................................................................................. 71

5.12 Function of I/O Terminals (Pb Group) ........................................................................................ 73

5.13 Display (PC Group) .................................................................................................................... 86

5.14 Enhanced Function parameters (Pd Group) .............................................................................. 88

5.15 Communication Parameters (PE Group) ................................................................................... 94

5.16 Protective Parameters (PF Group) ............................................................................................ 94

5.17 Manufacturer Parameters .......................................................................................................... 98

Chapter 6 Troubleshooting .............................................................................................. 99

Chapter 7 Maintenance .................................................................................................. 103

7.1 Daily Maintenance ...................................................................................................................... 104

7.2 Periodical Maintenance .............................................................................................................. 104

7.3 Replacing Wearing Parts ........................................................................................................... 105

7.4 Storage ....................................................................................................................................... 106

Chapter 8 Accessories Selection .................................................................................. 107

8.1 Braking Accessories ................................................................................................................... 107

8.1.1 Braking Unit Model No. .................................................................................................... 107

8.1.2 Selection Criteria of Braking Unit and Braking Unit Resistor .......................................... 107

8.1.3 Dimension of Braking Units ............................................................................................. 109

8.1.4 Wiring of External Braking Unit and Function Description .............................................. 110

8.2 AC / DC Reactor. ......................................................................................................................... 110

8.2.1 AC Input Reactor ............................................................................................................. 110

8.2.2 AC Output Reactor ........................................................................................................... 110

8.2.3 DC Reactor ...................................................................................................................... 110

8.3 Host Computer Software ............................................................................................................. 111

8.4 Connecting Cable of Keypad ...................................................................................................... 111

8.5 Pedestal of Keypad ..................................................................................................................... 111

Appendix 1 KET-3000W1 Technical Specification ....................................................... 112

Appendix 2 External Dimensions & Mounting Dimensions ........................................ 114

Appendix 3 Efficiency…………………………………………………………………………. 118

Appendix 3 Parameters .................................................................................................. 118

Appendix 4 Communication Protocol ........................................................................... 153

Chapter 1 Unpacking& Inspection

1

Chapter 1 Unpacking Inspection

1.1 Items to Check

Please check the following items upon delivery:

Item Method

Check whether the Model No. of the

KET-3000W1 you’ve received is the same

to that on your purchasing order

Please refer to the nameplate of the

KET-3000W1

Check whether there is any damage to the

machine

Take a look at the overall appearance and

check whether there is any damage

Check whether any screws or fastening

parts have got loose

Check with the screw driver when

necessary

Check the manual, certificate and other

spare parts

Manual and relative spare parts

1.2 Nameplate

The nameplate is located on the right hand side of the body. A barcode under the keypad also contains information

of the KET-3000W1, as shown in Fig. 1-2.

Fig. 1-1 Sketch of barcode

Fig. 1-2 Nameplate

2

1.3 Model Definition Rules

Item Power Phase Voltage Suffix

Vector Control

General Purpose

KET-3000W1

0.2KW

0.4KW

0.75KW

1.5KW

2.2KW

3.7KW

5.5KW

7.5KW

11KW

15KW

18.5KW

22KW

30KW

37KW

45KW

55KW

75KW

90KW

110KW

132KW

160KW

200KW

220KW

250KW

280KW

315KW

355KW

400KW

0R2

0R4

0R7

1R5

2R2

3R7

5R5

7R5

011

015

018

022

030

037

045

055

075

090

110

132

160

200

220

250

280

315

355

400

S ：

Single

phase

T ：

Three

phase

2：

220V

4：

400V

None:

standard

A～Z:

customized

E.g.: 7.5KW model：

7R5 T 4

Chapter 2 Safety.Precautions

3

Chapter 2 Safety Precautions

2.1 Safety

In this manual, notes for safe operation are classified as "Dangerous" and "Note".

Indicates a potentially hazardous situation which, if not attended, could possibly result in serious human

injury or even death.

Indicates a potentially hazardous situation which, if not attended, may result in moderate or minor injury and

damage to the KET-3000W1.

2.2 Notes for Installation

Please install the KET-3000W1 on fire-retardant materials.

Keep the KET-3000W1 away from combustible materials.

Keep the KET-3000W1 away from explosive gas.

Only qualified personnel shall be permitted to perform wiring.

Never wire the KET-3000W1 unless the input AC supply is totally disconnected.

The KET-3000W1 must be properly earthed to reduce electrical accident.

Install the cover before switching on the KET-3000W1 to reduce the danger of electric

shock and explosion.

For the KET-3000W1 that has been stored for longer than 2 years, please increase

its input voltage gradually before supplying full rated input voltage to it, in order to

avoid electric shock and explosion.

Don't touch live control terminals with bare hands.

Don't operate the KET-3000W1 with wet hands.

Perform maintenance job after confirming that the charging indicator is off or the DC

Bus voltage is below 36.

Only trained professionals shall be permitted to change the components. It is

prohibited to leave wires or metal parts inside the KET-3000W1 so as to avoid the risk

of fire.

Parameter settings of the control board that has been changed must be revised,

otherwise accidents may occur.

The bare portions of the power cables must be bound with insulation tapes.

4

Don't carry the KET-3000W1 by its cover. The cover cannot support the weight of the

KET-3000W1 and may drop.

Please install the KET-3000W1 on a strong support, failing which the KET-3000W1

may fall off.

Don't install the KET-3000W1 in places where water pipes may leak onto it.

Don't allow screws, washers and other metal foreign matters to fall inside the

KET-3000W1, otherwise there is a danger of fire or damage.

Don't operate the KET-3000W1 if it is incomplete, otherwise there is a danger of a fire

or human injury.

Don't install the KET-3000W1 under direct sunshine, otherwise it may be damaged.

Don't short circuit P1/PB and terminal (-), otherwise there is a danger of fire or the

KET-3000W1 may be damaged.

Cable lugs must be connected to main terminals firmly.

Don't apply supply voltage to control terminals,which is above the permitted voltage.

2.3 Notes for Operation

Please pay attention to the following issues when using the KET-3000W1.

2.3.1 About Motor and Load

In comparison to operation through direct Mains Supply:

This series KET-3000W1 are voltage type KET-3000W1. The output voltage is in PWM wave with some harmonics.

Therefore, temperature rise, noise and oscillation of motor are a little higher.

Low Speed Operation:

If the KET-3000W1 is used to drive a common motor at low speed for a long time, the heat dissipation effect of the

motor will be deteriroted. So it is recommended to adopt a special inverter duty motor if long time operation at low

speed with constant torque is required.

Motor’s Over-Load Protecting Threshold:

The KET-3000W1 can protect the motor from over-load. If the rating of the motor is not in compliance with that of the

KET-3000W1, be sure to adjust the protective threshold to ensure the motor is properly protected.

Operating above Motor Rated Frequency:

When the motor runs above its rated frequency, vibration and noise will increase. Please make sure the motor

bearings and mechanical drive satisfy the operating requirement, and that the motor can still provide sufficient torque

to the load.

Lubrication of Mechanical Drive:

Over time, the lubricants in mechanical devices, such as gear box, geared motor, etc. when running at low speed,

Chapter 2 Safety.Precautions

5

will deteriorate. Frequent maintenance is recommended.

The Mechanical Resonance Point of Load:

The KET-3000W1 system may encounter mechanical resonance with the load when operating within certain band of

output frequency. Set the skip frequencies through P2.31 ~ P2.36 to avoid it.

Insulation of Motor:

Before using the KET-3000W1, the insulation of the motor must be checked, especially, if it is used for the first time

or if it has been stored for a long time. This is to reduce the risk of the KET-3000W1 from being damaged by the poor

insulation of the motor. Wiring diagram is shown as follows. Please use 500V insulation tester to measure the

insulating resistance. It should not be less than 5MΩ.

Frequent On-off:

The KET-3000W1 should be started and stopped via its control terminals. It is prohibited to start and stop the

KET-3000W1 directly through input line contactors, which may damage the KET-3000W1 with frequent operations.

Regenerative Energy to KET-3000W1:

Negative torque always appears in the machine in the situation when motor feeds back energy to the

KET-3000W1,e.g.potential load or sharp deceleration. The KET-3000W1 is prone to trip due to over-current or

over-voltage fault. Therefore, a braking unit with proper parameters settings is required..

2.3.2 About KET-3000W1

Capacitors or Varistors Used to Improve the Power Factor

Don't connect any varistor or capacitor to the output terminals of the KET-3000W1, because the KET-3000W1 output

voltage waveform is pulse wave, otherwise tripping or damaging of components may occur. Please see Fig. 2-1

below.

Fig. 2-1 Capacitors are prohibited at the output side of the KET-3000W1

Contactors or Circuit Breakers Connected to the Output of the KET-3000W1

If circuit breaker or contactor needs to be connected between the KET-3000W1 and the motor, be sure to operate

these circuit breakers or contactor when the KET-3000W1 has no output, so as to avoid any damage to the

KET-3000W1.

6

Using Beyond the Range of Rated Voltage

The KET-3000W1 is prohibited to be used beyond the specified range of operation voltage. If needed, please use

suitable voltage control device.

Change From 3-phase to Single-phase

It is not recommended to change the KET-3000W1 from 3-phase input to 1-phase input. If it is necessary, the

phase-loss protection function should be disabled firstly. The KET-3000W1 must be derated for this operation. The

input phases must be at phase R and phase T, or else the KET-3000W1 will not work.

After the 3-phase input is changed into 1-phase input, bus-voltage and current ripple may increase, which not only

influences the life of electrolytic capacitor but it also deteriorates the performance of the KET-3000W1.The

KET-3000W1 operating current should be derated.

Protection Against Lightning Strike

There are transient surge suppressors inside the KET-3000W1, which protects it against lighting strike.

Derating Due to Altitude

Derating must be considered when the KET-3000W1 is installed at high altitude, greater than 1000m. This is

because the cooling effect of the KET-3000W1 is deteriorated due to the thin air, as shown in Fig. 2-2 that indicates

the relationship between the elevation and rated current of the KET-3000W1.

Fig. 2-2 Derating the KET-3000W1’s output current with altitude

2.4 Disposal

When disposing the KET-3000W1, please pay attention to the following factors:

The capacitors may explode if they are burnt.

Poisonous gas may be generated when the plastic parts like front covers are burnt.

Disposing method: Please dispose of unwanted KET-3000W1 as industrial waste.

Chapter 3 Installation and Wiring

7


3.1 External Dimensions and Mounting Dimensions (Please refer to Appendix 2)

3.2 Product Description

3.2.1 KET-3000W1 Specification (Please refer to Appendix 1)

3.2.2 Ratings (Please see Table 3-1.)

Table 3-1 KET-3000W1 Ratings

KET-3000W1

Model

Rated

Capacity

KVA

Rated Input

Current (A)

Rated

Output

Current (A)

Adaptable

Motor

Power (KW)

Rated

Input

Voltage(V)

0R2S2 0.6 4.3 1.7 0.25

220~240

0R4S2 1.0 5.8 2.5 0.4

0R7S2 1.5 10.5 4.0 0.75

1R5S2 2.8 18.5 7.5 1.5

2R2S2 3.8 24.1 10.0 2.2

0R4T4 1.0 1.8 1.4 0.4

380~440

0R7T4 1.5 3.4 2.3 0.75

1R5T4 2.5 5.2 3.8 1.5

2R2T4 3.4 7.3 5.1 2.2

3R7T4 5.9 11.9 9.0 3.7

5R5T4 8.5 15 13 5.5

7R5T4 11 19 17 7.5

011T4 16 28 25 11

015T4 21 35 32 15

018T4 24 39 37 18.5

022T4 30 47 45 22

030T4 39 62 60 30

037T4 49 77 75 37

045T4 59 92 90 45

055T4 72 113 110 55

075T4 100 156 152 75

090T4 116 180 176 90

110T4 138 214 210 110

132T4 167 256 253 132

160T4 200 307 304 160

200T4 250 385 380 200

220T4 280 430 426 220

250T4 309 475 470 250

280T4 349 535 530 280

315T4 398 609 600 315

8

KET-3000W1

Model

Rated

Capacity

KVA

Rated Input

Current (A)

Rated

Output

Current (A)

Adaptable

Motor

Power (KW)

Rated

Input

Voltage(V)

355T4 434 664 660 355

400T4 494 754 750 400

3.2.3 Parts of KET-3000W1

Fig. 3-1 is the part description of this KET-3000W1.

Fig. 3-1 (a) 3.7KW and below models

Fig. 3-1 (b) 5.5~15 kW models

Fig. 3-1 (c) 18.5~45kW models

Fig. 3-1 (d) 55KW and above models


9

3.3 Installation Environment

3.3.1 Installation Environment Requirement

When selecting mounting environment, the following issues should be taken into account:

Ambient temperature should be within the range of -10℃~ +40℃. If the temperature is higher than 40℃, the

KET-3000W1 should be derated and forced ventilation is required.

Humidity should be lower than 95%RH, non-condensing.

Mount in the location free of direct sunlight, dust, metal powder, corrosive gas or combustible gas.

Mount in the location with good ventilation, and in vertical direction.

Mount in the location where vibration is less than 5.9m/s2 (0.6g).

3.3.2 Ambient Temperature

Be sure to maintain the ambient temperature below +40℃ to achieve proper performance and normal operation of the KET-3000W1. If the temperature is between 40℃~50℃, the KET-3000W1 should be derated to 80% and a cooling fan or air conditioner is recommended to be installed.

3.3.3 Precautionary Measure

During Installation, please shield the KET-3000W1 with a dustproof cover, to prevent any metallic powder from dropping into the KET-3000W1. And remove the dustproof cover after the installation.

3.4 Installation Instructions & Space Requirements

To achieve nice cooling cycle efficiency, be sure to install the KET-3000W1 perpendicularly and always provide

the following space to allow normal heat dissipation. The requirements on mounting space and clearance are

shown in Fig. 3-1 and Fig. 3-2.

Fig. 3-2 (a) (45KW or below) Fig. 3-2 (b) (55KW or above)

KET-

3000W1 KET-

3000W1

10

When one KET-3000W1 is mounted on the top of the other, an air flow diverting plate should be fixed in between as

shown in Fig. 3-3.

Fig. 3-3 Installation of several KET-3000W1

3.5 Wiring

3.5.1 Wiring Requirement

In order to avoid interference intercoupling, it is recommended to separate the motor cables from the control cables

and power supply cables, and keep enough distance among cables. Especially when the cables are laid in parallel

and the cable length is big, the signal cables should cross the power supply cables perpendicularly as shown in Fig.

3-4.

Fig. 3-4 System wiring

The KET-3000W1 should be derated if the motor cables are too long or their cross sectional area (CSA) is too

large. The KET-3000W1’s cables should be the cables with specified CSA (See Table 3-2) because the

capacitance of the cable to ground is in proportional to the cable’s CSA. If the cable with big CSA is used, its

current should be reduced. The current should be decreased by 5% when per level of CSA is increased.

Shielded/armoured cable: High frequency low impedance shielded cable should be used. For example: copper net,

aluminum net or iron net.

Normally, the control cables must use the shielded cables and the shielding metal net must be connected to the

metal enclosure of the KET-3000W1 by cable clamps.

KET

3000

W1

KET

3000

W1


11

Fig. 3-5 (a) Correct earthing method

Fig. 3-5 (b) Incorrect earthing method

The earth terminal PE must be connected to the earth properly and the grounding resistance should be less than

10Ωfor 380V Class KET-3000W1.

Don’t share the earth wire with other devices, such as welding machines or power tools. Always use an earth wire

that complies with the technical standards required by electrical equipment, and minimize the length as short as

possible. When using more than one KET-3000W1, be careful not to loop the earth wire as shown in Fig. 3-6.

Besides, pay attention to the following points:

In order to reduce the earthing resistance, flat cable should be used because the high frequency impedance of flat

cable is smaller than that of round cable with the same CSA.

For 4-core motor cable, the end of one cable should be connected to the PE of the KET-3000W1, and the other

end should be connected to the motor’s enclosure. Hereby, if the motor and the KET-3000W1 each has its own

earthing pole, then the earthing effect is better.

If the earthing poles of different equipment in one system are connected together, then the leakage current will be

a noise source that may disturb the whole system. Therefore, the KET-3000W1’s earthing pole should be

separated from the earthing pole of other equipment such as audio equipment, sensors and PC, etc.

In order to reduce the high frequency impedance, the bolts used for fixing the equipment can be used as the high

frequency terminal. The paint on the bolt should be cleaned.

The earthing cable should be as short as possible, that is, the earthing point should be as close to the

KET-3000W1 as possible.

Earthing cables should be possibly far away from the I/O cables of the equipmentthat is sensitive to noise, and also

should be as short as possible. Please refer to the Fig. 3-6 for earth wire connection.

12

Fig. 3-6 (a) Recommended earthing method

Fig. 3-6 (b) This earthing method should be avoided.

Fig. 3-6 (c) Prohibited earthing method

Please see the Table 3-2 for the recommended wiring specification

MCCB A Contactor A

Input

Cables

Output

Cables

0R2S2 16 10 1.5 1.0 1

0R4S2 16 10 1.5 1.0 1

0R7S2 20 16 2.5 1.0 1

1R5S2 32 20 4 2.5 1

2R2S2 50 40 6 2.5 1

0R4T4 10 10 1.0 1.0 1

0R7T4 10 10 1.0 1.0 1

1R5T4 16 10 1.5 1.5 1

2R2T4 16 10 1.5 1.5 1

3R7T4 25 16 2.5 2.5 1

5R5T4 32 20 4 4 1

7R5T4 40 32 6 6 1

011T4 63 40 6 6 1

015T4 63 40 6 6 1

018T4 100 63 10 10 1

022T4 100 63 16 16 1

030T4 125 100 25 25 1

KET-3000W1 KET-3000W1

KET-3000W1 KET-3000W1

KET-3000W1 KET-3000W1 KET-3000W1 KET-3000W1


13

3.5.2 Main Circuit Wiring

Wiring can only be done after the KET-3000W1’s AC power is cut off and all the LEDs

on the keypad are off. Wait for at least 10 minutes before removing the keypad.

Wiring can only be done after the charge indicator on the right bottom is off and the

voltage between main circuit power terminals + and - is below 36V DC.

Wire connections can only be done by trained and authorized personnel.

Check the wiring carefully before connecting emergency stopping or safety circuits.

Check the KET-3000W1’s voltage level before supplying power to it, or human

injuries and equipment damage may happen.

Ensure that the KET-3000W1’s rated input voltage is in compliant with the AC supply

voltage before using it.

Dielectric strength test of the KET-3000W1 has been done in factory, so you need not

do it again.

Don’t do withstand voltage tests on the KET-3000W1, to avoid possible KET-3000W1

to be damaged.

It is prohibited to connect the AC supply cables to the KET-3000W1’s output

terminals U, V and W.

Grounding cables should be copper cables with section area bigger than 3.5mm2,

and the grounding resistance should be less than 10Ω. Leakage current exists in the KET-3000W1. The total leakage current is bigger than

3.5mA, depending on the usage conditions. To ensure safety, the KET-3000W1 and

the motor should be grounded, and a leakage current protector (RCD) should be

used. It is recommended to choose B type RCD and set the leakage current at

300mA.

037T4 160 100 25 25 1

045T4 200 125 35 35 1

055T4 200 125 35 35 1

075T4 250 160 70 70 1

090T4 315 160 70 70 1

110T4 400 400 95 95 1

132T4 400 400 150 150 1

160T4 630 600 185 185 1

200T4 630 600 150×2 150×2 1

220T4 800 600 185×2 185×2 1

250T4 800 800 185×2 185×2 1

280T4 800 800 150×3 150×3 1

315T4 800 800 150×3 150×3 1

355T4 1000 1000 150×4 150×4 1

400T4 1000 1000 150×4 150×4 1

14

Don’t connect an electromagnetic switch or contactor in the output circuit. Otherwise,

the KET-3000W1 will enable over current protection.

Don’t connect phase-shifting capacitors and LC/RC filters on the output circuit.

Be sure the KET-3000W1 has stopped output before switching motor or performing

variable frequency/power frequency switches.

3.5.3 Main Circuit Terminals Layout and Description

Please see Fig. 3-7 for the main circuit terminals layout.

Fig. 3-7 (a) 0R2S2 / 0R4S2 Main Circuit Terminals Layout

Fig. 3-7 (b) 220V Class 0.75~2.2KW /380V Class 0.4~3.7KW Main Circuit Terminals Layout

Fig. 3-7 (c) 380V Class 5.5~45KW Main Circuit Terminals Layout

Fig. 3-7 (d) 380V Class 55KW and above Main Circuit Terminals Layout

Please see Table 3-3 for the function description of the KET-3000W1’s main circuit terminals.

Table 3-3 Main Circuit Terminal Function Description

Terminal Function Description

L1, L2 /N Single-phase AC power input terminals

R, S, T 3-phase/ single-phase AC power input terminals

U, V, W Output terminals, connect to 3-phase AC motor

P1, + DC Link reacor connection terminals

+ , - External braking unit connection terminals connect

respectively to the positive pole and negative pole of DC bus.

+ , BR Braking resistor connection terminals

PE Earth terminal, connect to the earth


15

3.5.4 Main Circuit Connection

220V 0.2~0.4KW main circuit wiring diagram(Fig. 3-8):

Fig. 3-8 Main circuit wiring diagram of 220V 0.2~0.4KW models

220V 0.75~2.2KW main circuit wiring diagram (Fig. 3-9):


Remarks:

0R7S2, 1R5S2 and 2R2S2 are applicable both for single-phase 220V and 3-phase 220V(3-phase 220V

connects to R, S, T terminal).

400V 0.4 ~3.7KW main circuit wiring diagram (Fig. 3-10):


16

400V 5.5~45KW main circuit wiring diagram (Fig. 3-11):

Fig. 3-11 Main circuit wiring diagram of 400V 5.5~45KW models

400V 55KW and above main circuit wiring diagram Fig. 3-12):

Fig. 3-12 Main circuit wiring diagram of 400V 5.5~45KW models

During trial operation, be sure the KET-3000W1 runs forward when the Forward Command is enabled. Switch over

any two of the output terminals to each other or modify the setting of parameter P1.10 to change the direction of the

KET-3000W1.

Never connect the AC power source to the output terminals of the KET-3000W1. Otherwise, damage may occur to

the components inside the KET-3000W1. Never connect the output terminals to the earth. Never connect the output

cables to the chassis, so as to avoid potential damage to the KET-3000W1.

Never Add Phase-shifting Capacitor in the Output Circuit

Don’t connect a phase-shifting capacitor or LC/RC filter on the output circuit of the KET-3000W1. Otherwise, the

KET-3000W1 is prone to be damaged.

Correct EMC Installation

The KET-3000W1 is designed and produced according to the requirements of IEC/61800-3. Please install

KET-3000W1 as per the description below, so as to achieve proper electromagnetic compatibility.

Divide the installation space into different areas：

In a drive system, the KET-3000W1, control equipment and sensors are installed in the same cabinet, the

electromagnetic noise should be suppressed at the main connecting points with the RFI filter and input choke

installed in cabinet to satisfy the EMC requirements.


17

The most effective but expensive measure to reduce the interference is to isolate the noise source and the noise

receiver, which should be considered in mechanical/system design phase. In driving system, the noise source can

be KET-3000W1, braking unit and contactor. Noise receiver can be automation equipment, encoder and sensor.

The mechanical/system is divided into different EMC areas according to its electrical characteristics.

The recommended installation positions are shown in Fig. 3-13:

Fig. 3-13 System wiring sketch

Remarks:

Area A should be used to install transformers of control power supply, control system and sensor.

Area B should be used for interfaces of signal and control cables, correct immunity level is required.

Area C should be used to install noise sources such as input reactor, the KET-3000W1, braking unit and contactor.

Area D should be used to install power source and cable connecting parts of RFI filter.

Area E should be used to install output noise filter and the wires of filter.

Area F should be used to install motor and motor cables.

All the areas should be isolated in space, so that electromagnetic decoupling effect can be achieved. The minimum

distance between areas should be 20cm, and use earthing bars for decoupling among areas, the cables from

different area should be placed in different tubes.

KET-3000W1

18

The filter should be installed at the interfaces between different areas if necessary.

Bus cable(such as RS485) and signal cable must be shielded.

Each area should be isolated from one another to realise electromagnetic decoupling, with minimum space of 20cm.

It is recommended to use earthing bars for decoupling among areas. The cables from different area should be

placed in different tubes.

The filter should be installed at the interfaces between different areas if necessary.

Bus cable(such as RS485) and signal cable must be shielded

Motor cable should be earthed at the KET-3000W1 side, if possible, the motor and KET-3000W1 should be earthed

separately.

Motor cable and control cable should be shielded or armored. The shield must be earthed and avoidentangling at

cable end to improve high frequency noise immunity.

Assure good conductivity among plates, screw and metal case of the KET-3000W1: use tooth-shape washer and

conductive installation plate.

Generally, if there is some sensitive equipment, it is more cost-effective to install the power filter at sensitive

equipment side.

Installation of Power Line Filter:

Power source filter should be used in the equipment that may generate strong EMI or the equipment that is

sensitive to the external EMI. The power source filter should be a two-way low pass filter through which lower

frequency current can flow while higher frequency current can hardly flow.

Function of Power Line Filter

The power line filter ensures the equipment can satisfy the conducting emission and conducting sensitivity in

EMC standard. It can also suppress the radiation of the equipment.

It can prevent the EMI generated by equipment from entering the power cable, and prevent the EMI generated by

power cable from entering equipment.

Common mistakes in using power cable filter:

1. Too long power cable

The filter inside the cabinet should be located near to the input power source. The length of the power cables should

be as short as possible.

2. The input and output cables of the AC supply filter are too close.

The distance between input and output cables of the filter should be as far apart as possible. Otherwise the high

frequency noise may be coupled between the cables and bypass the filter. Thus, the filter will become ineffective.

3. Bad earthing of filter

The filter’s enclosure must be earthed properly to the metal case of the KET-3000W1. In order to achieve better

earthing effect, make use of a special earthing terminal on the filter’s enclosure. If you use one cable to connect the

filter to the case, the earthing is useless for high frequency interference. When the frequency is high, so is the

impedance of cable, hence there is little bypass effect. The filter should be mounted on the enclosure of equipment.

Ensure to clear away the insulation paint between the filter case and the enclosure for good earthing contact.

EMI of the KET-3000W1

The KET-3000W1’s operating theory decides that some EMI is unavoidable. The KET-3000W1 is usually installed in

a metal cabinet, the instruments outside the metal cabinet is disturbed by the KET-3000W1 lightly. The cables are


19

the main EMI source, if connecting the cables according to the manual, the EMI can be suppressed effectively. If the

KET-3000W1 and other control equipment are installed in one cabinet, the area rule must be observed. Pay attention

to the isolation between different areas, cable layout and shielding.

Conducted Interference Clearing

Please add a noise filter to suppress conducted interference at the output side.Besides, conducted interference can

be efficiently reduced by threading all the output cables through a grounded metal tube. And conducted interference

can be dramatically decreased when the distance between the output cables and the signal cables is above 300mm.

RF Interference Clearing

The input cables, output cables and the KET-3000W1 produce radio frequency interference. A noise filter can be

installed both at the input side and output side, and shield them with iron utensils to reduce RF interference. The

wiring distance between the KET-3000W1 and the motor should be as short as possible.

Fig. 3-14 RF interference clearing

Wiring Distance between KET-3000W1 and Motor

If the cable between the KET-3000W1 and the motor is long, the high-frequency leakage current will increase,

causing the KET-3000W1 output current to increase as well. This may affect peripheral devices. To prevent this,

adjust the carrier frequency as per the instruction in Table 3-4:

Table 3-4 Carrier frequency and the cable length between KET-3000W1 and motor

Cable length <30m 30m~50m 50m~100m ≥100m

Carrier frequency <15KHz <10KHz <5KHz <2KHz

When the cable between the KET-3000W1 and the motor is longer than 100m, it is recommended to install an output

reactor.

3.5.5 Control Terminal Connection

The length of signal cables should be less than 50m in order to efficiently suppress interference to control signals,

and keep a distance of at least 30cm from the power lines. Please use twisted-pair shielded cables for analog input

and output signals.

Control Terminals Layout and Function Description:

1 Control terminals layout and wiring for KET-3000W1 - 3.7KW or below:

Fig. 3-15 Control terminals layout for KET-3000W1 of 3.7KW or below

KET-

3000W1

20

Please refer to the Table 3-5 for control terminals function description for 3.7KWand below:

Table 3-5 Control terminal function description for 3.7KW and below

Item Terminal Name Function Description

Communication

485 Communication

Interface

The positive pole of 485 differential

signal

485 The negative pole of 485 differential

signal

Analog Input

AI1 Analog input 1 Input voltage signal：0～10V

Input impedance: 30kΩ

AI2 Analog input 2

Input voltage signal：0～10V


Input current signal：0～20mA

Input impedance: 500Ω

Analog Output

AO1 Analog output 1 Programmable output

Output voltage/current signal：0～

10V/0～20mA:

AO2 Analog output 2

Power Source

10V/GND 10V power

supply

Reference power source for analog input

( 10V), and the max output current is

5mA

P24/COM/SEL 24Vpower

supply

Reference power source for digital input

( 24V), and the max output current is

200mA

Digital Input FWD/REV/

X1~X5 Digital input 1~7

Bipolar optional input signal,

programmable input.

Input voltage range: 9~30VDC

FWD/REV/X1~X3 input impedance:

4.7kΩ

X4~X5 input impedance: 1.6 kΩ:

X4~X5 is for high speed pulse input,

Max. freq.:50KHz.

Frequency

Output DO

Frequency

output 1

Programmable optically-coupled

isolation pulse frequency output

24VDC/50mA

Max. freq.:50KHz.

Digital Output Y1 Digital output 1 Programmable optically-coupled

isolation output,


21


24VDC/50mA

CME Digital output

site Digital output site

Relay Output RA/RB/RC Relay contact

output

Programmable output

capacity of contact：250V AC /3A or 30V

DC /1A

RC-RB: normally closed

RC-RA: normally open

Shielding PE Shielding

earthing Shielding layer earthing terminal

Wire Jumper

Please refer to Fig. 3- 15 for the amplified wire jumper.

Fig. 3-16 Wire jumper for 3.7KW and below models

Table 3-6 Wire jumper function description ( 3.7KW and below)

Jumper

Switch Function and Setting Description

Setting at

factory

CN4

AI2 analog input source voltage/current selection. When the

contact V is short-circuited with the middle contact, AI2 source

input is voltage signal: when the contact I is short-circuited with

the middle contact, AI2 source input is current signal.

Voltage signal

CN5

AO1 analog output source voltage/current selection. When the

contact V is short-circuited with the middle contact, AO1 source


the middle contact, AO1 source input is current signal.

Voltage signal

CN6

AO2 analog output source voltage/current selection. When the

contact V is short-circuited with the middle contact, AO2 source


the middle contact, AO2 source input is current signal.

Voltage signal

22

Control signal wiring diagram of 3.7KW and below models:

Fig. 3-17 Control signal wiring diagram for 3.7KW and below models

2 Control terminals layout and wiring for 5.5KW and above models

Fig. 3-18 control terminal layout for 5.5KW and above models

Please refer to the Table 3-7 for terminal function descriptionof 5.5KW and above models:

Table 3-7


Communication

485 Communication

interface

The positive pole of 485 differential signal

485 The negative pole of 485 differential signal

Analog Input

AI1 Analog input 1 Input voltage signal：0～10V:


AI2 Analog input 2

Input voltage signal: 0～10V (input impedance:

30kΩ)

Input current signal: 0～20mA(input impedance:

500Ω)

Analog Output

AO1 Analog output 1 Programmable output,

Output voltage/current signal：0～10V/0～20mA: AO2 Analog output 2

KET-3000W1


23


Power Source

10V/GND 10V power

supply

Reference power source for analog input ( 10V),

the max output current is 5mA

P24/COM/SEL 24Vpower

supply

Reference power source for digital input ( 24V),

the max output current is 200mA

Digital Input FWD/REV/

X1~X8

Digital input

1~10

Bipolar optional input signal, programmable input.

Input voltage range: 9~30VDC

FWD/REV/X1~X6 input impedance: 4.7 kΩ

X7~X8 input impedance: 1.6 kΩ

X7~X8 is for high speed pulse input,

Max. freq.:50KHz

Frequency

Output DO

Frequency

output 1

Programmable optically-coupled isolation pulse

frequency output 24VDC/50mA

Max. freq.:50KHz

Digital Output

Y1~Y2 Digital output

1~2

Programmable optically-coupled isolation output,

24VDC/50mA

CME Digital output

site Digital output site

Relay Output RA/RB/RC Relay contact

output

Programmable output capacity of contact：250V

AC /3A or 30V DC /1A

RC-RB: normally closed

RC-RA: normallyopen

Shielding PE Shielding

earthing Shielding layer earthing terminal

Wire Jumper

Please refer to Fig. 3-16 for amplified wire jumper for 5.5KW and above models.

Fig. 3-19 Wire jumper for 5.5KW and above models

24

Table 3-8 Wire jumper function description ( 5.5KW and above)

Jumper

Switch Function and Setting Description

Setting at

factory

CN5

AI2 analog input source voltage/current selection. When the contact V

is short-circuited with the middle contact, AI2 source input is voltage

signal: when the contact I is short-circuited with the middle contact, AI2

source input is current signal.

Voltage

signal

CN6

AO1 analog output source voltage/current selection. When the contact

V is short-circuited with the middle contact, AO1 source input is

voltage signal: when the contact I is short-circuited with the middle

contact, AO1 source input is current signal.

Voltage

signal

CN7

AO2 analog output source voltage/current selection. When the contact

V is short-circuited with the middle contact, AO2 source input is

voltage signal: when the contact I is short-circuited with the middle

contact, AO2 source input is current signal.

Voltage

signal

Control signal wiring diagram of 5.5KW and above models:

Fig. 3-20 Control signal wiring diagram for 5.5KW and above models

Wiring of multi-function input terminals, terminal FWD and REV:

KET-3000W1

INVERTER


25

A) Dry contacts Connection:

If internal 24V power supply is used, the wiring is as shown in Fig. 3-21:

Fig. 3-21 Using internal 24V power supply

If an external power supply is used, the wiring is as shown in Fig. 3-18. (Be sure to disconnect the cable

between P24 and SEL)

Fig. 3-22 Using an external power supply

B) NPN (PNP) connection:

The KET-3000W1’s internal +24V power supply is used and the external controller uses NPN transistors

whose common emitters are connected, as shown in Fig. 3-23:

Fig. 3-23 NPN signal input connetting diagram when using internal 24V power supply

26

The KET-3000W1’s internal +24V power supply is used and the external controller uses PNP transistors

whose common emitters are connected, as shown in Fig. 3-24. ( Be sure to disconnect the cables between

SEL and P24)

Fig. 3-24 PNP signal input connecting diagram when using internal 24V power supply

Use external power supply as shown in Fig. 3-25: (Be sure to disconnect the cables between SEL and P24)

Fig. 3-25 NPN signal input connecting diagram when using external power supply

Use external power supply as shown in Fig. 3-22: (Be sure to disconnect the cables between PLC and P24)


27

Fig. 3-26 PNP signal input connetting diagram when using external power supply

C ) Wiring of multi-function output terminal:

Multi-function output terminals Y1 and Y2 can use the 24V power supply inside the KET-3000W1 and the wiring

mode is shown as follows:

Fig. 3-27 Multi-functional output terminal connecting diagram when using internal 24V power supply

Multi-function output terminals Y1 and Y2 can use the 24V power supply outside the KET-3000W1 and the

wiring mode is shown as follows:

Fig. 3-28 Multi-functional output terminal connecting diagram when using external power supply

28

Frequency signal output terminal DO can use the 24V power supply inside the KET-3000W1 and the wiring is as

below:

Fig 3-29 DO terminal connection diagram when using internal 24V power supply

Frequency singal output terminal DO can also use the external 24V power supply and the wiring is as below:

Fig.3-30 DO terminal connecting diagram when using external power supply

Chapter 4 Operation Instructions

29

Chapter 4 Operating Instructions

Never supply AC power source before the terminal cover has been assembled. Be sure

the power is off when dismantling the cover. If not attended, electric shock may occur.

Please keep away from the KET-3000W1 if the auto restart at power outage function is

enabled, so as to avoid any potential injury at power on.

On condition of energy-consumption braking resistor has been installed, energy-

consumption braking will cause temperature rise in the braking resistor. Please do not

touch the resistor to avoid electric shock and burns.

Please verify the motor’s allowable scope of application before starting the KET-3000W1.

Do not check signals during operation to prevent the KET-3000W1 from being damaged.

Do not randomly change the parameter setting.

Please do debugging testing before switching the run command source of he

KET-3000W1, to avoid damage to the KET-3000W1 and human hurt.

4.1 Descriptions

In the following sections, you may study section describing the control, running and status of the KET-3000W1 many

times. Please read this section carefully. It will help you to correctly understand and use the functions to be

discussed.

4.1.1 KET-3000W1 Run Command Source Selection

It defines the sources from which the KET-3000W1 receives run commands like START, STOP, FWD, REV, JOG

and others.

Keypad control: The KET-3000W1 is controlled by theRUN, STOP and JOG keys on the keypad.

External Terminal control: The KET-3000W1 is controlled by terminals FWD, REV and COM (2-wire mode), Xi

(3-wire mode), JOGF, JOGR.

Communication control: The operation such as STARTand STOP can be controlled by communication like RS485

Modbus, PC software.

The control modes can be selected by parameter P1.07, and multi-function input terminal (No.24, 25 and 26 can be

selected by Pb.00~Pb.07).

30

4.1.2 KET-3000W1 Frequency Reference Source

The KET-3000W1 has 10 source selection to input reference frequency (P1.04). The reference frequency can be

inputed by:

0 : Keypad( change the value by the and keys):

1：Motor Potentiometer UP/DN through external digital inputs

2：Serial port RS485

3：Analog signal input 1


5: Input Pulse terminal

6: Keypad potentiometer

7：Digital input for multi-step speed

8: PI closed-loop control

9: Inbuilt PLC.

The KET-3000W1 has 11 auxiliary source selection to input frequency reference (set by Pd.00). The frequency

reference can be achieved by::

0: No auxiliary frequency

1：Digital frequency reference 1: and keys on the keypad directly given by Pd.02)

2：Digital frequency reference 2: Motor Poetntiometer UP/DN through external digital inputs directly given by

Pd.02)

3：Digital frequency reference 3: serial port RS485



6：Input Pulse terminal

7：AI1-5

8：AI2-5

9：Input Pulse frequency -0.5×P1.03

10: Keypad potentiometer

Note: The auxililiary source selection is disabled when the master source reference is same as the auxiliary

source reference. 4 ~10 frequency is set by P2.00.

The final frequency reference results from calculating the value from one of the above master

frequency reference sources and one of the above auxiliary frequency reference sources.


31

4.1.3 KET-3000W1 Operation Status

The KET-3000W1 has 3 Operation status: Stop, Run and Motor Parameters Autotuning.

Stop status: After the KET-3000W1 is switched on and initialized, if no run command is given or the stop command

is given, there is no output from U, V, W of the KET-3000W1, and the RUN indicator turns off.

Run status: The KET-3000W1 starts output after it receives the run command. The RUN indicator is on.

Motor parameters auto tuning status: If there is an run command and P3.05 is set as 1 or 2, the KET-3000W1

enters motor parameters autotuning status, and then enters stop status after the autotuning process is over.

4.1.4 KET-3000W1 Operation mode

The KET-3000W1 has 6 types of operating modes: Simple operation, Jog, Multi-step speed operation, Wobble

operation, PI closed-loop control operation and PLC operation.

Jog: When the KET-3000W1 is in stop status, it will operate according to the jog frequency after it receives the Jog

operation command (or after the JOG key is pressed). See explanations of P2.13 P2.14 P7.11 P7.12 for details.

Multi-step speed operation: The multi-step speed operation is enabled when P1.04=7. Select multi-step

frequency 0~15 (P2.15 ~ P2.30) to start multi-step speed operation by logic combination of multi-functional digital

input terminals (No.1, No.2, No.3 and No. 4 function).

Wobble operation: If the wobble operation function is enabled (PA.00=1,P1.04<7), the KET-3000W1 will operate

as per the preset operating parameters (Please see explanations of Parameter PA). Users can disable wobble

operation through a digital multi-functional terminal (No. 32 function).

PI process control operation: If the PI control operation function is enabled (P1.04=8), the KET-3000W1 will

select the PI control operation mode, i.e it will perform PI control according to the reference and feedback values

(See explanations of Parameter P9). This function can be disabled by a multi-function terminal (No.28 function).

PLC operation: If PLC function is enabled (P1.04=9), the KET-3000W1 will select PLC operating mode and will

operate in the pre-defined operating mode (see explanation of Parameter P8). The PLC function can be disabled by

a digital input multi-functional terminal (No. 16 function).

4.2 Operating Instructions

4.2.1 UsingKeypad

The keypad is used to set up the KET-3000W1 and display parameters. The standard KET-3000W1 is installed with

LED keypad. It has two sizes according to the dimension of the KET-3000W1. The smaller size is for 3.7KW and

below KET-3000W1 and the other bigger is for 5.5KW and above KET-3000W1. The operating methods of these

two types of keypads are the same, as shown in Fig.4-1.

32

Fig. 4-1 Illustration of keypad

There are 8 keys on the keypad of the KET-3000W1 and the function of each key is shown in Table 4-1.

Table 4-1 Key functions description

Key Name Color Function

PRG Program/exit Gray Enter or exit programming status

ENTER Enter/confirm Gray Enter lower level menu or confirm data

Shift

Gray

In editing mode, pressing this key to select the bit

to be modified. In other mode, this key is used to

scroll through the parameters.

Decrement Gray Decrease value or parameter

Increment Gray Increase value or parameter

RUN Run key Green Press this key to run the KET-3000W1 in the mode

of keypad control

Stop/reset

Red

Press this key to stop or reset the KET-3000W1

JOG Jog key Gray In keypad control mode, press this key to start jog

operation.

Remarks:

The JOGkey is jog function when P1.09=1, while when P1.09=0, the JOG key is used to change the direction of the

KET-3000W1.

The keypad consists of a 4-digit eight segments LED tube, 3 LED indicators that indicate unit and 1 status indicator.

The LED tube can display the status parameters, function parameters and fault codes of the KET-3000W1. The

three unit indicators have 7 different combinations and each combination corresponds to one type of unit as shown

in Fig. 4-2.


33

Fig. 4-2 Unit represented by combination of the indicators

The Operation status indicator lies above the potentiometer. The function of the indicator is shown as

below:

Indicator Status Current status of the KET-3000W1

Operating

status indicator

Off Stop status

On Running status

4.2.2 Display of the KET-3000W1

The keypad can display the parameters in stop, running, editing, alarming state and special state.

1) Parameters displayed in stop status.

When the KET-3000W1 stops operation, the keypad will display the status parameters in stop status, as shown in

Fig. 4-3(a). The unit indicator on the top right of the keypad indicates the unit of the parameter. Other parameters

can be displayed by pressing the key . (PC.02 determines which stop parameter is prior to be displayed at

power on.)

Fig. 4-3 (a) Fig. 4-3 (b)

2) Parameters displayed in running status

When the KET-3000W1 receives running command, it starts running and its keypad will display the status

parameters in running status, as shown in Fig. 4-3 (b). The unit indicator at right indicates the unit of the parameter.

Other parameters can be displayed by pressing key. The displayed parameters are determined by PC.00 and

PC.01.

34

3) Parameters configuration

When the KET-3000W1 is in stop,run or alarm state, pressing the PRG key can enter configuring mode.

Configuring mode can be displayed in 3-level menu: parameter group→ parameter→ parameter value. You can enter the sub-menus by pressing the ENTER key. In parameter value menu, press ENTERto save the settings,

and press the PRG key to exit the menu.

Fig. 4-4 Configuring status

4) Alarm information

When the KET-3000W1 detects a fault signal, the keypad will display the fault code. The code will flash as shown

in Fig. 4-5 to catch the user’s attention: Fault information can be queried by pressing thePRG key to enter PF group

parameters. The KET-3000W1 can be reset by pressing the STOP key, or sending the reset commands via the

external terminal or serial port. The fault code will not disappear until the fault is cleared.

Fig. 4-5 Fault code display


35

5) Special mode display

The Special mode include the display status at initialization, power on and autotuning, etc. as shown in Fig. 4-6:

Fig. 4-6 Special displays

4.2.3 Keypad Operation

1) View parameters

Fig. 4-7 Status parameters display operation

2) Parameter setup

Let’s look at an example of how to set parameters. Suppose you want to change the setting of P2.30 from

45.00Hz to 1.50Hz, please refer to Fig. 4-8.

36

Fig. 4-8 Parameter setup

In the second-sub menu, the settings of the parameter cannot be changed if none digit of the parameter is flashing.

The possible reasons are:

a) The settings of this parameter cannot be changed, such as the actual detected parameters or recorded

parameters.

b) The settings of this parameter cannot be changed when the KET-3000W1 is running, and can only be changed

when the KET-3000W1 stops.

c) The parameters are protected, that is, if P0.00 is set to be 1or 2, the settings of all the parameters cannot be

changed to avoid wrong operation. If you really want to change the settings, first input the correct password.

3) RUN /STOP operation

Please select the control mode as keypad control. Please see Fig. 4-9.

Fig. 4-9 RUN and STOP operation

4) JOG operation

Please select the control mode as keypad control, and set P1.09 to 1 to enable the JOG key as shown in Fig.

4-10.

Fig. 4-10 Jog operation

5) How to verify the password and unlock the keypad

E.g.: Set the parameter P0.00 to “1234”. See Fig. 4-11.

Fig. 4-11 Password verification and unlocking


37

6) Keypad self-check

The keypad has self-checking function. This function will be enabled by pressing ENTER and STOP simultaneously.

Please see Fig. 4-12.

Fig. 4-12 Keypad self-check

When keypad self-checking finishes, “PASS” will be displayed on the keypad, and disappear in 3-5 seconds. The

KET-3000W1 will display parameters in stopping status.

If the keypad self-checking doesn’t finish within one minute, “FAIL” will be displayed on the keypad, and

disappear in 3-5 seconds. The KET-3000W1 will display parameters in stopping status.

4.3 Initial Power On.

4.3.1 Checking Before Power On.

Please wire the KET-3000W1 according to Chapter 3.5.

4.3.2 Power on the KET-3000W1 for the first time

After checking the wiring and mains supply voltage, switch on the circuit breaker of the KET-3000W1 to supply

mains power to it. The KET-3000W1 keypad will display “8.8.8.8.” at first, then display “-LU-” , and the contactor

closes. If the LED displays the frequency settings, the initialization of the KET-3000W1 is complete.

38

Chapter 5 Parameter Introduction

Note:

The values in“ ”are the factory settings.

The KET-3000W1 has 17 parameter groups. This chapter will provide the users detailed function introduction of each

group.

P0 Group: Protection of parameters

P1 Group: Basic operating parameters

P2 Group: Frequency reference parameters

P3 Group： Motor parameters

P4 Group： Vector control parameters

P5 Group： V/F control parameters

P6 Group： RUN / STOP control parameters

P7 Group： Acceleration/ Deceleration parameters

P8 Group： Simple PLC parameters

P9 Group： Process closed-loop control parameters

PA Group： Wobble operating parameters

Pb Group： I/O terminal function parameters

PC Group： Display control parameters

Pd Group： Function-boost parameters

PE Group: Communication parameters

PF Group： KET-3000W1 and motor protection parameters

Py Group： Manufacturer parameters


39

5.1 Protection of Parameters (P0 Group)

P0.00 User’s password Range：0~9999 0

XXXX: To set any non-zero number as the password, to enable the password protection function.

0000：To clear the set password, and disable the password protection function.

The factory setting of P0.00 is 0, namely the password protection function is disabled.

Once the password is set, the user must input correct password if he wants to change any parameter. Otherwise,

all the parameters cannot be changed but only viewed.

P0.01 Menu mode selection Range：0 1 2 1

0: Shortcut menu mode:

In this mode, only parameters for quick setup can be viewed. The KET-3000W1 can be setup quickly from the

parameters in the menu.

1: Full menu mode:

All the parameters can be displayed in this mode.

2: Checking menu mode:

Only the P0 group parameters and the parameters in P1~PF groups whose values are different from their

factory settings can be viewed in this mode.

P0.02 Parameter initialization Range：0 1 2 0

0: No operation

1: Clear fault memory

When P0.02 is set as 1, the fault records of PF.23~PF.29 will be cleared.

2: Restore to factory settings

If P0.02 is set as 2, all the parameters except Py group and P3 group are restored to factory settings. The LED

keypad displays “OPFA”.Then the KET-3000W1 displays parameters in stop status.

5.2 Basic operating parameters (P1 Group)

P1.00 Control mode Range：0 1 0

0: V/F control:

The constant voltage/frequency ratio control mode is suitable for speed adjustment of pump and fan applications. It

is also applicable for occasions when one KET-3000W1 drives more than one motors. Please properly set the P5

group parameters, so as to achieve proper efficiency.

1: Sensorless vector control:

The sensorless vector control mode is applicable for application with high requirement on KET-3000W1

performance and torque.

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When the sensorless vector control mode is selected, to perform motor parameter autotuning is a must at first, and

then adjust the settings of P3.00~P3.04 according to the nameplate of the motor. Start the motor parameter

autotuning function and properly set P4 group parameters, so as to achieve excellent vector control efficiency.

P1.01 Max. output frequency Range： 50.00～400.00Hz 50.00

P1.02 Upper limit of frequency

Range：Lower limit of frequency (P1.03) ～

Max. output frequency (P1.01) 50.00

P1.03 Lower limit of frequency Range：0.0～upper limit of frequency P1.02 0.00

The max.output frequency is the highest frequency that the KET-3000W1 is allowed to output.

The upper limit of frequency is the highest frequency that the KET-3000W1 is allowed to run with.

The lower limit of frequency is the lowest frequency that the KET-3000W1 is allowed to run with.

The relationship of the KET-3000W1 running frequency setting, lower limit of frequency, upper limit of frequency, and

max.output frequency of KET-3000W1 is shown as below:

lowerlimit of frequency≤KET-3000W1’srunning frequency setting≤upper limit of frequency≤max .output

frequency of KET-3000W1

Please properly set the parameters P1.01~P1.03 according to the nameplate of the motor and actual operating

conditions.

The upper /lower limit of frequency has no limitation on the motor parameter autotuning function.

Besides the lower and upper limit of frequency, the KET-3000W1’srunning frequency is also limited by the parameter

settings of starting frequency, DC braking starting frequency, skip frequency, etc.

P1.04 Frequency reference source sellection Range: 0~9 0

0: Keypad, adjust via the and key on the keypad.

The initial value is P1.06, and can be adjusted via the and key on the keypad.

1: Terminal, adjust via the terminals UP/DN.

The initial value is P1.06, and can be adjusted via the terminals UP/DN.

2: Digital communication via serial port:

The initial value is 0, and can be adjusted via serial port command.

3：AI1 analog reference:

The frequency referenceis dependent on the analog voltage of AI1 terminal whose range is 0～10V DC.

The corresponding relationship between the analog value of AI1 and the KET-3000W1’s running frequency

setting is up to the settings of P2.00 and P2.05~P2.12.


41

4: AI2 analog reference:

The frequencyreference is dependent on the analog voltage/current of AI2 terminal whose range is 0～10VDC

(in voltage input mode), 0～20mADC (in current input mode).

The corresponding relationship between the analog value of AI2 and the KET-3000W1’s running frequency

settingis up to the settings of P2.00, and P2.05~P2.12.

5: Pulse terminal:

The frequency referenceis dependent on the terminal pulse frequency (only via X7 or X8 for 5.5KW or above

models, please see the definition of Pb.06 or Pb.07: while for 3.7KW or below models, it only can bevia X4 or X5,

please see the definition of Pb.03 or Pb.04 ).

Specification of input pulse signal: voltage range:15～30V

frequency range: 0～50.0kHz

The corresponding relationship between the pulse terminal frequency and the KET-3000W1’s running frequency

settingis up to the settings of P2.00and P2.05~P2.12.

6: Keypad potentiometer:

The frequency reference is dependent on the potentiometer on the keypad, with voltage range of 0～5V.

The corresponding relationship between the analog value and the KET-3000W1’s running frequency settingis up

to the settings of P2.00and P2.05~P2.12.

7: Digital input for multi-step speed:

The frequency referenceis dependent on the multi-step speed input terminals and the multi-step frequency

defined by P2.15~P2.30.

The default frequency referenceis the value corresponding to the Step 0when all of the multi-step frequency

terminals are disabled.

See the function description of multi-step speed terminals.

8: Process closed-loop PIoperation:

The frequency referenceis dependent on the PI control output, namely the calculationof target value and

feedback value.

9: PLC operation

The frequency reference is dependent on the P8 group and multi-step frequency defined by P2.16~P2.30.

The frequency reference of PLC Step 1 corresponds to multi-step frequency 1 defined by P2.16, and the

frequency reference of PLC Step 15 corresponds to multi-step frequency 15 defined by P2.30.

P1.05 Digital frequency control Range: 00~11 00

This function is enabled when P1.04=0 or 1.

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Unit’s place:

0: Frequency reference will be saved to P1.06 upon power outage.

1: Frequency reference will not be saved upon power outage.

Ten’s place:

0: Frequency reference will not be restored to P1.06 at stop.

1: Frequency reference will be restored to P1.06 at stop.

Note: The updated setting of P1.06 is prior to the previous reference frequency.

P1.06 Starting frequency reference

Range: Lower limit frequency ~ upper limit frequency

50.00Hz

P1.06 is starting frequency reference when P1.04 is 0 or 1.

P1.07 Run command source selection Range: 0 1 2 0

0: Keypad control

Start and stop the KET-3000W1 by pressing the key RUN, STOP, JOG on the keypad.

1: Terminal control

Use the terminals FWD,REV, JOGF (when the function of the input terminal is set as 29) and JOGR(when the

function of the input terminal is set as 30) to start or stop the KET-3000W1.

2: Serial port control

Start or stop the KET-3000W1 via serial port.

P1.08 Function of “STOP” Range: 0 1 2 0

0: The STOP key is active only in the keypad control mode. The KET-3000W1 stops as per the setting of P6.01

by pressingthe STOP key.

1: The STOP key is active in the keypad control, terminal control and serial port control mode. The KET-3000W1

stops as perthe setting of P6.01 by pressing the STOP key.

2: In the keypad control mode, the KET-3000W1 will stop as per the setting of P6.01by pressing the STOP

key:while in the terminal control or serial port control mode, the KET-3000W1 will coast to stop and display

terminal fault when pressing the STOP key.

P1.09 “JOG” function selection Range: 0 1 0

0: JOG is defined as the shift key between forward operation and reverse operationin the keypad control mode.

1:JOG is defined as jog operation in the keypad control mode.

P1.10 Operation direction selection Range: 0 1 0

0: Same as the run command

1: Opposite to the run command


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P1.11 Anti-reverse operation Range: 0 1 0

0: Reverse operation is permitted

1: Reverse operation is prohibitted

Only forward operation is permitted when P1.11=1.Reverse operation command is disabled if the KET-3000W1

is in stop status: If the KET-3000W1 is in running status, it will decelerate to stop when receiving reverse

operation command:while in PLC operation mode, if the running direction of a certain step is set as reverse

operation and P1.11=1, the KET-3000W1 will stop when it comes to this step.

This function is effective for all of the control modes (includingkeypad control, terminal control and serial port

control).

P1.12 Dead time of direction switch Range: 0.0~3600.0s 0.0

P1.12 defines the dead time of direction switch, namely, the time of zero-frequency output in the process of

direction switch as shown as t1 in Fig. 5-1.

Fig 5-1 Dead time of direction swtich

P1.13 Carrier frequency Range: 1k~16kHz Depends on the KET-3000W1 model

The carrier frequency of PWM output wave can be set as per the below table.

KET-3000W1 Power Setting range of carrier

frequency Factory setting

0.2~22KW 1k~16kHz 8kHz

30KW~45KW 1k~12k 6kHz

55KW~90KW 1k~6k 4kHz

110KW or above 1k~4k 2kHz

The carrier frequency will affect the operating noise of the motor. The higher the carrier frequency, the lower the

noise made by the motor. When the value is higher than the factory setting, the KET-3000W1 should be derated

by 5%when per1KHz is increased compared to the factory setting.

44

5.3 Frequency reference parameters (P2 Group)

P2.00 Frequency reference curve selection Range: 0000~1111 000

Unit’s place:

AI1 frequency curve selection. 0: Curve 1: 1: Curve 2

Ten’s place:

AI2 frequency curve selection. 0: curve 1: 1: Curve 2

Hundred’s place:

Potentiometer frequency curve selection. 0: curve 1: 1: Curve 2

Thousand’s place:

Pulse frequency curve selection: 0: Curve 1: 1: Curve 2

P2.01 Analog reference gain Range: 0.00～9.99 1.00

P2.02 Analog reference bias Range: -50%~50% 0

P2.03 Analog reference filtering constant Range: 0.01～50.00s 0.50s

P2.04 Max. input pulse frequency Range: 0.1～50.0kHz 10 kHz

When open-loop frequency reference source is AI1, AI2, keypad potentiometer or pulse ternimal, the relationship

between frequency reference and analog reference is shown as below.

Fig 5-2 Flow chart of analog reference/pulse reference

P2.05 Minimum reference of Curve 1 Range: 0.0％～P2.07 0.0%

P2.06 Frequency corresponding to “P2.05” Range: 0.00～P1.02 0.0

P2.07 Maximum reference of Curve 1 Range: P2.05～100.0％ 100.0％


P2.09 Minimum reference of Curve 2 Range: 0.0％～P2.11 0.0%


P2.11 Maximum reference of Curve 2 Range: P2.09～100.0％ 100.0％



45

Curve 1 is defined by P2.05～P2.08, while Curve 2 by P2.09～P2.12. Both Curve 1 and Curve 2 can achieve

positive and negative characteristics as shown in Fig. 5-3 (a) and 5-3(b).

Fig. 5-3 (a): Positive characteristics Fig. 5-3(b): Negative characteristics

P: Terminal pulsereference A: Analog value

Pmin/Amin: Min. reference Pmax/Amax: Max. reference

Fmin: frequency corresponding to Min. reference

Fmax：frequency corresponding to Max.reference

Analog input value (A) is a percentage without unit, and 100% corresponds to 10V or 20mA 100% corresponds

to 5V in the condition of potentiometer reference

Pulse frequency (P) is also a percentage without unit, and 100% corresponds to the Max. pulse frequency

defined by P2.05.

On condition that P2.05=P2.07 or P2.09=P2.11, the frequency reference is P2.06 or P2.10.

P2.03 defines the filtering constant. It is used to filter the analog reference signal.The bigger the constant, the

higher the immunity level, but the response time is prolonged with the increase of this constant. That is, the

smaller the constant, the shorter the response time, but the lower the immunity level.

P2.13Jog operating frequency

Range: 0.10 ～ Min{50.00Hz P1.02 upper limit

frequency } 5.00Hz

P2.14 Interval of jog operation Range: 0.0～100.0s 0.0s

46

Fig. 5-4 Interval of jog operation

Note:

t1 : Operation acceleration time (P7.11) t3 :Jog deceleration time (P7.12)

t2: Jog constant-speed operation time t4: Interval of jog operation (P2.14)

f1: Jog operating frequency (P2.13)

Interval of Jog operation (P2.14) is the interval from the time when the last Jog operation command is completed to

the time when the next Jog operation command can be executed.

The jog command sent during the interval passage will not be executed. It will not be executed until the end of the

interval.

The function of starting frequency, DC braking, speed tracking is disabled at the jog operation.

P2.15 Multi-step frequency 0 Range: P1.03 (Lower limit)～P1.02 (upper limit) 0.00Hz




P2. 19 Multi-step frequency 4 Range: P1.03 (Lower limit)～P1.02 (upper limit) 12.00Hz








47





P2. 30 Multi-step frequency15 Range: P1.03 (Lower limit)～P1.02 (upper limit) 45.00Hz

The above frequency ranges will be used in the simple PLC operation mode and multi-step speed operation.Please

refer to the introductions of Pb.00～Pb.07 and P8 Group.

P2. 31Skip frequency 1 Range: 0.00～400.00Hz 0.00Hz

P2.32 Range of skip frequency 1 Range: 0.00～30.00Hz 0.00Hz

P2.33 Skip frequency 2 Range: 0.00～400.00Hz 0.00Hz


P2.35 Skip frequency 3 Range: 0.00～400.00Hz 0.00Hz


P2.31～P2.36 define the output frequency that will cause resonant with the load, which should be avoided. Therefore,

the KET-3000W1 will skip the above frequencies as shown in Fig. 5-5. Up to 3 skip frequency ranges can be set.

Fig. 5-5 Skip frequency and its ranges

During the process of acceleration/deceleration, the KET-3000W1 will run with countinous frequency output, ignoring

the skip frequency ranges.But the KET-3000W1 will not run at constant speed in the skip frequency ranges.

Frequency reference is uncontinuous, while frequency output is continuous.

This function is disabled when the skip frequency is set as 0Hz.

48

5.4 Motor Parameters (P3 Group)

P3.00 Motor’s rated power Range: 0.4～999.9KW up to the KET’s model

P3.01 Motor’s rated voltage Range: 0～9999V up to on KET’s model

P3.02 Motor’srated current

Range of 5.5KW and the above: 0.1～4000A up to the KET’s

model

Range of 3.7KW and the below: 0.01～99.99A up to the KET’s

model

P3.03 Motor’srated frequency Range: 10.00～400.00Hz up to the KET’s model

P3.04 Motor’srated speed Range: 1～24000rpm up to the KET’s model

P3.05 Parameter autotuning Range: 0 1 2 0

P3.06 Stator resistance

5.5KW or above model:0.000~9.999Ω up to the KET’s model

3.7KW or below model: 0.00~99.99Ω up to the KET’s model

P3.07 Stator inductance

5.5KW or above model:0.0~999.9mH up to the KET’s model

3.7KW or below model: 0.0~9999mH up to the KET’s model

P3.08 Rotor resistance

5.5KW or above model:0.000~9.999Ω up to the KET’s model

3.7KW or below model: 0.00~99.99Ω up to the KET’s model

P3.09 Rotor inductance

5.5KW or above model: 0.0~999.9mH up to the KET’s model


P3.10 Mutual inductance

5.5KW or above model: 0.0~999.9mH up to the KET’s model


P3.11 Exciting current Io

5.5KW or above model:0.1～4000A up to the KET’s model

3.7KW or below model: 0.01～99.99A up to the KET’s model


49

Fig. 5-6 Equivalent circuit of asynchronous motor

In Fig.5-6, R1,L1,R2,L2,Lm,Io represent stator resistance, stator inductance, rotor resistance, rotor inductance, mutual

inductance and exciting current.

The exciting current can be worked out by the rated current and power factor, or can be got throughrotating

autotuning.

The relationship between torquecurrent, exciting current and motor’s rated current is below:

(Generally, Motor’s efficiency is about 85%)

P3.05 Parameter autotuning:

0: Autotuning is disabled:

1: Stationary autotuning

Before autotuning, make sure to correctly input the motor parameters as perthe motor’s nameplate (P3.00～

P3.04)

In the process of stationary autotuning, the motor is at rest. The stator resistance, rotor resistance,stator leakage

inductance(L1-Lm) and rotor leakage inductance (L2-Lm) will be measured and written into P3.06 and P3.08

automatically.

2: Rotating autotuning

In process of rotatingautotuning, the motor is at rest at the beginning, and the stator resistance, rotor resistance,

stator leakage inductance (L1-Lm) and rotor leakage inductance (L2-Lm) will be measured. Hinterher the motor

will start rotating, accordingly mutual inductance (Lm) and exciting inductance (Io) will be measured automatically.

All the measured valuesabove will be saved respectively in P3.06, P3.07, P3.08, P3.09, P3.10 and P3.11.

The setting of P3.05 will automatically return to 0 when auto tuning ends.

When the motor is in rotating status, oscillation, even overcurrent, might occur. In this case, please press the

STOP key to stop autotuning and then adjust the oscillation-suppression factor (P5.14) and

oscillation-suppression mode (P5.15) suitably to mitigate the possible oscillation.

Autotuning procedures:

50

1. Input correctly the motor parameters as per its nameplate (P3.00～P3.04):

2. When P3.05 is set as 2, please set properly the acceleration time 1 (P7.03) and deceleration time 1 (P7.04)

and make sure the motor is disconnected with the load for security:

3. Set P3.05 as 1 or 2 firstly, then press theENTER key, and therewith press RUN key to start autotuning. The

LED will display “tUNE ”:

4. When the RUN indicator turns off, it indicates that autotuning has been completed. At this time, the

KET-3000W1 displays the parameters of stop status.

Note: The autotuning is enabled only in the keypad control mode (P1.07=0).

P3.12 Motoroverload protection mode selection Range: 0 1 2 1

0: Disabled

The overload protection is disabled.

1: Standard motor

As the cooling effect of the standard motor deteriorates at low speed, the KET-3000W1 will automatically make

regulation to the motor overload protection time.

2: Variable frequency motor

The cooling effect of the variable frequency motor is not affected by the motor’s speed dueto its forced cooling

potential,the KET-3000W1 will not automatically make regulation to the motor overload protection time, as

efficient motor cooling by an external motor fan is assumed.

P3.13 Motoroverload protection coefficient Range: 20.0%~110.0% 100.0%

The overload protection coefficient can be set as 100% when the KET-3000W1 drives adaptive motors. In this

case,the KET-3000W1’s overload protection is prior to motor’s overload protection as shown in Fig. 5-7.

Fig. 5-7 Overload protection curves of KET-3000W1 and motor

When the power of the KET-3000W1 is higher than that of the motor, please set the motor’s overload protection

coefficient(P3.13)properly for effective overload protection to different kinds of motors, as shown in Fig. 5-8.


51

Fig. 5-8 Motor overload protection coefficient

The lower the power of motor than that of the KET-3000W1, the lower the value should be set.

Motor overload protection coefficient = Motor’s rated current / KET-3000W1’s rated current X 100%

5.5 Vector control parameters(P4 Group)

P4.00 ASR1-P (Lower frequency range) Range: 0~2000 500

P4.01 ASR1-I (Lower frequency range) Range: 0~2000 500

P4.02 ASR2-P (upper frequency range) Range: 0~2000 500

P4.03 ASR2-I (upper frequency range) Range: 0~2000 500

P4.04 Switching frequency 1 Range: 0.00~50.00Hz 5.00Hz

P4.05 Switching frequency 2 Range: 0.00~50.00Hz 10.00Hz

The parameters of P4.00~P4.05 confirm the PI parameters of automatic speed regulator (ASR). The structure of

ASR is shown in Fig. 5-9 below.

Fig. 5-9 Structure of ASR

52

Fig. 5-10 PI dynamic development of ASR

In Fig. 5-10, P1 corresponds to P4.00: I1corresponds to P4.01: P2 corresponds to P4.02: I2 corresponds to P4.03: f1

corresponds to P4.04: f2 corresponds to P4.05.

When the KET-3000W1 operates with frequency in a range of 0~P4.04, the PI parameters of vector control is P4.00

and P4.01:

When the KET-3000W1 operates with frequency above the value of P4.05, the PI parameters of vector control is

P4.02 and P4.03:

When the KET-3000W1 operates with frequency in a range of P4.04~P4.05, P is the linear interpolation between

P4.00 and P4.02, while I is the linear interpolation between P4.01 and P4.03.

The system’s response can be expedited through increasing the ASR proportional gain P, butoscillationmay occur if

the value of P is too high.

The system’s response can be expedited through increasing the ASR intergration constant I, but oscillation and high

overshoot happen easily if the value of I is too high.If I=0, the integral function isdisabled and the speed loop works

only as a proportional controller.

Generally, the proportional gain “P” should be adjusted firstly to the maximum on condition the system does not

vibrate, and then the integral constant “I” should be adjusted to shorten the response time without overshoot.

Both proportional gain (P) and integralconstant (I) should be enlarged, on condition that shorter dynamic response

time is required during low frequency operation.

P4.06 Torque limitation

Range: 0.0％～ 200.0％ (motor’s rated current)

180.0％

Torque limitation is used to limit the torque current output by the ASR.

P4.07 ASR output filter Range: 0～5 2

It is used to filter the torque current output by the ASR.


53

P4.08 ACR-P Range: 0~2000 500

P4.09 ACR-I Range: 0~2000 500

Set the PI parameters of the ACR.

P4.10 ACR output filter Range: 0～5 2

It is used to filter the output of ACR regulator.

5.6 V/F control parameters(P5 Group)

P5.00 V/F curve selection Range: 0, 1, 2 0

Group P5 parameters define flexible V/F setting modes so as to meet requirements of different load characteristics.

Two preset curves and one user-defined curve can be selected according to the setting of P5.00.

If P5.00 is set as “0”, the /””proportion of V/F should be a straight line.

If P5.00 is set as “1”, the proportion of V/F should be a square curve with lower torque characteristics, as shown in

Fig. 5-11.

Fig. 5-11 Curve of V/F control

If P5.00 is set as 2, the V/F curve depends on the user.

P5.01 V/F frequency value F3 Range: P5.03～P3.03 40.00Hz

P5.02 V/F voltage value V3 Range: P5.04～100.0％ 80.0％

P5.03 V/F frequency value F2 Range: P5.05～P5.01 25.00Hz

54

P5.04 V/F voltage value V2 Range: P5.06～P5.02 60％

P5.05 V/F frequency value F1 Range: 0.0～P5.03 10.00Hz

P5.06 V/F voltage value V1 Range: 0～P5.04 20.0％

If P5.00 is set as 2, V/F curve is defined by the user via P5.01～P5.06, as shown in Fig. 5-12. The V/F curve can

be defined by connecting 3 points of (V1, F1), (V2,F2) and (V3,F3), to adapt to special load. Default V/F curve at

the factory is a straight line.

V1~V3: Proportion of V/F at passage 1~3

F1~F3: Frequency of V/F at passage 1~3

Fn: Motor’s rated frequency

100%: Motor’s rated voltage

Fig. 5-12 User-defined V/F curve

P5.07 Torque boost Range: 0.0%~30.0% 2.0％

In order to compensate the torque drop at low frequency, the KET-3000W1 can boost the voltage so as to boost

the torque. If F5.07 is set as 0, auto torque boost is enabled and if it is set as non-zero, manual torque boost is

enabled, as shown in Fig. 5-13.


55

Vx: Voltage of manual torque boost Vmax: Motor’s rated voltage

Fz: Cut-off frequency for torque boost Fn: Motor’s rated frequency

Fig. 5-13 Introduction of torque boost

P5.08 Cut-off point used for manual torque

boost

Range: 0.1%~50.0% of motor’s rated

frequency 10.0％

P5.08 defines the ratio of the cut-off frequency used for manual torque boost to the motor’s rated frequency

(P3.03), as shown as Fz in Fig. 5-13 above. This cut-off frequency adapts to any V/F curve defined by P5.00.

P5.09 Slip compensation gain Range: 50.0%~150.0% 100.0％

P5.10 Slip compensation limit Range: 0.0%~250.0% 200.0％

P5.11 Compensation constant Range: 0.1~25.0s 2.0s

The motor’s slip changes with the load torque, which results in the variance of motor speed. According to the

load torque, the KET-3000W1 will automatically adjust its output frequency through slip compensation. The

change of speed due to the load change is reduced as shown in Fig. 5-14.

Fig. 5-14 Range of slip compensation

56

In driving status: The slip compensation gain (P5.09) should be increased gradually when the actual speed is

lower than the reference speed.

In generating status: The slip compensation gain (P5.09) should be increased gradually when the actual speed is

higher than the reference speed.

Range of slip compensation = Slip compensation limit (P5.10) X Rated slip

Rated slip can be worked out via motor’s rated frequency and rated speed, as equation below.

Rated slip =Rated frequency – Rated speed X Np / 60

Np is the number of pole pairs of the motor

The value of auto compensation slip depends on the motor’s rated slip,consequentlymake sure the motor’s rated

frequency and rated speedare set correctly.

P5.12 Auto energy-saving function Range: 0 1 0

0: Disabled

1: Enabled

If P5.12 is set as 1, the auto energy-saving function is enabled.This function is suitable for light load variable

torque applications, and allows the microprocessot to regulate the motor flux automatically to provide the most

efficient motor fluxfor the load.

When the torque current < (0.7 × rated torque current),

Slope of V/F curve= normal slope of V/F curve X 0.5 + torque current / 2 × 0.7 × motor’s rated torque

current

When the torque current ≥ (0.7 × rated torque current),

Slope of V/F curve= Normal slope of V/F curve

P5.13 AVR function Range: 0, 1, 2 2

0: Disabled

1: Enabled all the time

2: Disabled in deceleration process

AVR means automatic voltage regulation.

The output voltage can be regulated to maintain constant via AVR. Thus, normallythe AVR function should be

enabled, especially when the input voltage is higher than the rated voltage.

In deceleration process, if AVR function is disabled, the running current will be a little higher: while if the AVR

function is enabled, the motor will decelerate steadily and the current will be smaller.


57

P5.14 Oscillation-suppression coefficient Range: 0~200 up to the KET-3000W1’s model

Thisfunctionisused to damposcillationwhen output current is continually unstable, and helps keep the motor

running smoothly through correctly adjusting the setting of P5.14.

P5.15 Oscillation-suppression mode Range: 0, 1 0

0: Oscillation suppression is dependent on the motor’s exciting current component.

1: Oscillation suppression is dependent on the motor’s torque current component.

5.7 RUN / STOP control parameters(P6 Group)

P6.00 Start mode Range: 0 1 2 0

0: Start at the starting frequency

The KET-3000W1 starts operation at the preset starting frequency (P6.02) within the retention time of starting

frequency (P6.03). The starting frequency still works during the process of direction switch, as shown in Fig.

5-15.

Fig. 5-15 Start at the starting frequency

1: Brake first and then start

The KET-3000W1 brakes firstly (refer to P6.04 and P6.05), and then starts at starting frequency. Starting DC

braking is enabled only in the process from the stop status to running status. But it is disabled in the process of

direction switch, as shown in the Fig. 5-16.

58

Fig. 5-16 Starting DC braking diagram

2: Start after speed tracking

The KET-3000W1 automatically searches and catches the motor’s running direction and speed, and starts the

rotating motor smoothly without impact, as shown in Fig. 5-17. This mode is enabled only in the process from

stop status to running status. But it is disabled in the process of direction switch.

Fig. 5-17 Start after speed tracking

P6.01 Stop mode Range: 0 1 2 0

0: Decelerate to stop

After the stop command is received, the KET-3000W1 reduces its output frequency according to the

deceleration time and stops when the frequency decreases to 0.

1: Coast to stop

After receiving the stop command, the KET-3000W1 stops output immediately and the motor stops under the

effects of mechanical inertia.

2: Decelerate to stop with DC braking

After receiving the stop command, the KET-3000W1 reduces its output frequency according to the deceleration

time and starts DC braking when its output frequency reaches the initial frequency of braking operation. Please

refer to the introduction of P6.09~P6.12.


59

P6.02 Starting frequency Range: 0.00～60.00Hz 0.50Hz

P6.03 Retention time of starting frequency Range: 0.0～10.0s 0.0s

P6.02 and P6.03 are enabled only when P6.00 is set as 0 or 1.

Starting frequency refers to the initial frequency at start, and the retention time of starting frequency refers to the

hold time at starting frequency, as shown as fS and t1 in Fig. 5-18.

Fig. 5-18 Function of starting frequency

P6.04 DC braking current at start Range: 0.0～150.0％ 0.0%

P6.05 DC braking time at start Range: 0.0～60.0s 0.0s

P6.04 and P6.05 are enabled when P6.00 is set as 1 (brake first and then start), as shown in Fig. P5-19.

DC braking current at start (P6.04) is a percentage of the KET-3000W1’s rated current. If P6.04 is higher than

twice of motor’s rated current, the injection current value is twice of the motor’s rated current.

If P6.05=0.0s, there is no DC braking process at start.

Fig. 5-19 DC braking at start

60

P6.06 Reference current for speed search

Range: 0.0~200.0% of motor’s rated

current 100.0%

P6.07 Frequency decrease rate of speed search Range: 1.0~30.0Hz/s 10.0Hz/s

P6.08 V/F ratio of speed search

Range: 0.0~100.0% of motor’s rated

voltage/frequency 100.0%

For 5.5KW or above model, if P6.00 is set as 2, the KET-3000W1 will inject current to the motor according to the

reference current (P6.06) and start to search the speed, while P6.07 and P6.08 are disabled.

For 3.7KW or below model, if P6.00 is set as 2, the KET-3000W1 will supply a certain voltage to the motor

according to the settings of P6.07 and P6.08 and start to search the speed.

V/F ratio in speed searching = P6.08 X Motor rated voltage / Motor rated frequency

P6.09 DC braking initial frequency while stopping Range: 0.0~60.00Hz 0.00

P6.10 DCbraking waiting time while stopping Range: 0.0~10.0s 0.0s

P6.11 DC braking current while stopping Range: 0.0~150.0％ 0.0%

P6.12 DC braking time while stopping Range: 0.0~60.0s 0.0s

P6.09~P6.12 are enabled only when P6.01=2, as shown in the Fig. 5-20.

DC braking waiting time while stopping indicates the duration from the time when running frequency reaches the

DC braking initial frequency (P6.09) to the time when the DC braking is applied during the process of decelerating

to stop.

The KET-3000W1 has no output during the waiting time. By setting the waiting time, the current overshoot in the

initial stage of braking can be reduced when the KET-3000W1 drives a high power motor.

DC braking current while stopping is a percentage of KET-3000W1’s rated current. If the setting of DC braking

current is higher than twice of motor’s rated current, the actual injection current is twice of the motor’s rated

current. And there is no DC braking process when the braking time is 0.0s.


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Fig. 5-20 DC braking while stopping

P6.13 Voltage threshold of dynamic braking Range: 220~700V 700

When the voltage of DC bus hits the value defined by P6.13, the dynamic braking function will be enabled.

The recommend range of P6.13 for 220V Class and 380V Class KET-3000W1 is respectively 340~380V and

646~700V.

This function is enabled only for the KET-3000W1 with built-in dynamic braking unit.

5.8 Acceleration/Deceleration parameters(P7 Group)

P7.00 Acceleration/Deceleration mode

selection

Range: 0, 1 0

0: Linear acceleration or deceleration

Output frequency increases or decreases according to constant slope, as shown in Fig. 5-21.

Fig. 5-21 Linear acceleration and deceleration

1: S curve acceleration/ deceleration

Output frequency increases or decreases according to S curve, as shown in Fig. 5-22.

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Fig. 5-22 S-curve acceleration and deceleration

P7.01 Starting stage time of S curve

Range: 10.0 ％ ~50.0 ％ of (Acc./Dec.

time) 20%

P7.02 Rising stage time of S curve

Range: 10.0％~70.0％ (Acc./Dec. time)

60%

P7.01 and P7.02 are enabled when P7.00=1, and P7.01+ P7.02≤90％.

Starting stage time of S curve is shown as in Fig. 5-22, where the slope of output frequency increases from 0

Rising stage time of S curve is shown as in Fig. 5-22, where the slope of output frequency is constant:

Ending stage time of S curve is shown as in Fig. 5-22, where the slope of output frequency decreases to 0.

P7.03 Acceleration time 1 Range: 0.1~3600.0s 10.0S

P7.04 Deceleration time 1 Range: 0.1~3600.0s 10.0S







P7.11 Acceleration time of jog operation Range: 0.1~3600.0s 10.0S

P7.12 Deceleration time of jog operation Range: 0.1~3600.0s 10.0S


63

Acceleration time is the time that the KET-3000W1’s output frequency accelerates from 0 Hz to the maximum

frequency(P1.01), please refer to t1 in Fig. 5-23: Deceleration time is the time that the KET-3000W1’s output

frequency decelerates from maximum frequency (P1.01) to 0 Hz, see in t2 Fig. 5-23.

Fig. 5-23 Acceleration and deceleration time

P7.13 Speed increment via UP terminal Range: 0.01~99.99Hz/s 1.00Hz/s

P7.14Speed decrement via DOWN terminal Range: 0.01~99.99Hz/s 1.00Hz/s

P7.13 and P7.14 respectively define the change rate of reference frequency via the UP/DOWN terminal.

Please refer to Group Pb for the function of the UP/DOWN terminal.

5.9 Simple PLC parameters(P8 Group)

Simple PLC function enables the KET-3000W1 to change its running frequency and direction automatically

according to PLC parameter settings.

If a certain step of PLC operation is not required, please set its time as 0.

P8.00 Simple PLC operation mode selection Range: 000~122 000

Unit’s place: PLC operation mode selection

0: Stop after single cycle operation

As shown in Fig. 5-24, taking the 15-step PLC operation as an example, the KET-3000W1 stops automatically

after one operating cycle. It will start only after receiving the run command next time.

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Fig. 5-24 Stop after single cycle of PLC operation

1: Maintain the final value after single cycle of PLC operation

As shown in Fig. 5-25, taking the 15-step PLC operation as an example, the KET-3000W1 will maintain the

running frequency and direction of the last step after completing one operating cycle.

Fig. 5-25 Maintaining the final frequency after single cycle of PLC

2: Cycle operation

As shown in Fig. 5-26, taking the 15-step PLC operation as an example, the KET-3000W1 will operate with a

new cycle from Step 1 automatically after completing one operating cycle until receiving the stop command.

Fig. 5-26 Cycle operation of PLC

Ten’s place: PLC operation restart mode selection after pause

0: Start from Step 1

If the KET-3000W1 stops during PLC operation due to the stop command, fault or power failure, the PLC

operation will start from the Step 1 next time.


65

1: Continue to operate from the step where the KET-3000W1 pauses

If the KET-3000W1 stops during PLC operation due to the stop command or fault, it will record the uptime.

When it restarts, the KET-3000W1 will continue operation from the step where it pauses as shown in Fig.

5-27.

a1: Acceleration time of Step 1 a2: Acceleration time of Step 2

a3: Acceleration time of Step 3 d2: Deceleration time of Step 2

f1: Frequency of Step 1 f2: Frequency of Step 2

f3: Frequency of Step 3

Fig. 5-27 Continue to operate from the step where the KET-3000W1 pauses(Mode 1)

2: Continue to operate at the frequency when the KET-3000W1 pauses.

When the KET-3000W1 stops during PLC operation due to the stop command or fault, it will record not only

the operated time but also the current frequency. It will continue to operate at the recorded frequency upon

restart, as shown in Fig. 5-28.

a1: Acceleration time of Step 1 a2: Acceleration time of Step 2

a3: Acceleration time of Step 3 d2: Deceleration time of Step 2

f1: Frequency of Step 1 f2: Frequency of Step 2

f3: Frequency of Step 3

Fig. 5-28 Continue to operate at the frequency when the KET-3000W1 pauses(Mode 2)

The difference between Mode 1 and Mode 2 is that Mode 2 also memorizes the running frequency when the

KET-3000W1 pauses, and the KET-3000W1 will continue to operate at the frequency upon restart.

66

Hundred’s place: Save the PLC status after power failure.

0: Not save

The PLC running status will not be saved after power failure and start running from Step 1 next time.

1: Save

The operating parameters of PLC operation, including the operating step, operating frequency and operating

time of this step,etc, can be saved. The KET-3000W1 will continue to operatein accordance with the setting of

ten’s place of P8.00.

P8.01 Setting of Step 1 Range: 000~132 000

P8.02 Runtime of Step 1 Range: 0.0~6500.0s 5.0s


P8.04 Runtime of Step 2 Range: 0.0~6500.0s 0s
















67













P8.01, P8.03, P8.05, P8.07, P8.09, P8.11, P8.13, P8.15, P8.17, P8.19, P8.21, P8.23, P8.25, P8.27, P8.29 are

used to configure the running frequency, direction, acceleration and deceleration time.

P8.02, P8.04, P8.06, P8.08, P8.10, P8.12, P8.14, P8.16, P8.18, P8.20, P8.22, P8.24, P8.26, P8.28, and P8.30

are used to configure the runtime of different steps.

Function of Unit’s place at different steps is as follows.

PLC operation direction selection:

0: Forward

1: Reverse

2: Depend on the run command

The motor’s operation direction can be alternated via external direction command. If the direction is not set, the

KET-3000W1 will run with the direction in last step.

Function of Ten’s place of different steps is as follows.

Acceleration/deceleration time selection of PLC at different steps.

0: Acceleration/deceleration time 1




The absolute value of each step is the same as the setting of the multi-step frequency displayed in parameter

68

blocks P2.16 to P2.30, for instance, the absolute value of running frequency in Step 15 is the multi-step

frequency value of P2.30.

Function of Hundred’s place at different steps is as follows.

0: The timing unit of PLC operation is second.

1: The timing unit of PLC operation is hour.

The timing will start from 0 if the unit of PLC operating time is changed.

5.10 PI closed-loop control parameters (P9 Group)

The process closed-loop control is shown in Fig. 5-29.

Fig. 5-29 The process closed-loop control chart (Kp：Proportion gain Ki：Integral constant)

Closedloop can be constituted not only by analog reference and feedback but also by pulse reference and

feedback. Generally, the PI closed-loop control mode is used to regulate pressure, liquid level, temperature,etc.

The maximum analog input or maximum pulse input frequency (P2.04) corresponds to the maximum output

frequency (P1.01).

P9.00 Reference source selection Range: 0~3 1

0: Digital reference

It is the value of P9.04 (when P9.01 0~5):

It is the value of P9.05(when P9.01 6).

1: AI1 analog reference


3: Potentiometer reference

P9.01 Feedback source selection Range: 0~6 1

0: AI1

1: AI2

2: AI1+AI2

3: AI1-AI2

4: Min{AI1 AI2}

5: Max{AI1 AI2}

6: Pulse(when the input terminal function is set as 40, pulse will be input via PG closed-loop single pulse signal,


69

when the input terminal function is set as 41 or 42, pulse will be input via PG closed-loop dual pulse signal.

P9.02 Reference filtering time constant Range: 0.01~50.00s 0.50s

P9.03 Feedback filtering time constant Range: 0.01~50.00s 0.50s

The signals can be filtered by setting the filtering time constant (P9.02, P9.03).

P9.04 Setting of digital reference Range: 0.00V~10.00V 0.00V

If P9.00 is set as 0 and P9.01 is set as 0~5, the reference of PI closed-loop regulator is defined by P9.04.

P9.05 Closed-loop speed reference Range: 0~39000rpm 0

If P9.00 is set as 0 and P9.01 is set as 6, the speed reference can be set via keypad or serial port

communication.

P9.06 Number of pulse per revolution of

pulse encoder

Range: 1~9999 1024

The setting of P9.06 is determined by the encoder, the feedback speed can be worked out automatically by the

KET-3000W1 according to the feedback pulse and the setting of P9.06.

P9.07 Minimum reference Range: 0.0％~ P9.09 0.0

P9.08 Feedback value corresponding to

Min. reference

Range: 0.0~100.0％ 20.0%

P9.09 Maximum reference Range: (P9.07) ~100.0％ 100.0%

P9.10 Feedback value corresponding to

Max. reference

Range: 0.0~100.0％ 100.0%

P9.07~P9.10 define the relationship between the analog closed-loop reference and expected feedback value.

The settings are the ratio (percentage value) of actual reference value and actual feedback value to 10V or

20mA, while the settings are the ratio (percentage value) of actual reference voltage value to 5V when the

reference comes from potentiometer, as shown in Fig. 5-30 below.

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Fig. 5-30 Relationship between closed loop reference and feedback value

P9.11 Proportional gain KP Range: 0.000~9.999 0.050

P9.12 Integral constant Ki Range: 0.000~9.999 0.050

P9.13 Sampling cycle T Range: 0.01~50.00s 0.50s

P9.11and P9.12 define the PI parameters of process closed-loop.

The sampling cycle T (P9.13) refers to the sampling cycle of feedback value. The PI regulator calculates once in

each sampling cycle.

P9.14 Deviation limit Range: 0.0~20.0％ 2.0%

P9.14 defines the maximum deviation of the output from the reference closed-loop, as shown in Fig. 5-31. PI

regulator stops operation when the feedback value is within this range. Setting this parameter correctly is

instructiveto improve the system output accuracy and stability.

Fig. 5-31 Regulation of process closed-loop

P9.15 Closed-loop regulation characteristics Range: 0, 1 0

0: Positive

Set P9.15 as 0 if the motor speed is required to increase with the increase of the reference.


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1: Negative

Set P9.15 as 1 if the motor speed is required to decrease with the increase of the reference.

P9.16 Integral regulation selection Range: 0, 1 0

0: Stop integral regulation when the frequency reaches the upper or lower limit.

1: Continue the integral regulation when the frequency reaches the upper or lower limit.

It is recommended to disable the integral regulation when the frequency reaches the upper or lower limit on

condition that fast response is needed.

5.11 Wobbleoperatingparameters (PA Group)

Generally, the wobble operation process is as shown as below. First, the KET-3000W1 accelerates to the preset

frequency of wobble operation within the acceleration time and then waits for certain time defined by

PA.03.Hinterher the KET-3000W1 transits to the central frequency of the wobble operation as per the acceleration

time, and ultimately start wobble operation according to the preset wobble amplitude, jump frequency, wobble

cycle and the rise time of wobble operation until it receives a stop command and stops as per the deceleration time.

The process is shown in Fig. 5-32 below.

Fig. 5-32 Function of wobble operation

PA.00 Wobble operation selection Range: 0, 1 0

0: Disabled

1: Enabled

Wobble operation is enabled only when P1.04= 0~6 and PA.00=1. It is disabled when P1.04 is set as 7~9,even if

PA.00 is set as 1.

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PA.01 Wobble operation mode Range: 0000~1111 0000

Unit’s place: Start mode of wobble operation

0: Auto start

The KET-3000W1 will first operate at the preset frequency of wobble operation (PA.02) for certain time (PA.03),

and then enter wobble mode automatically.

1: Manual start

If the multi-function terminal (set as wobble start function) is enabled, the KET-3000W1 will enter wobble mode.

If the terminal is disabled, the KET-3000W1 will end wobble operation and operate at the preset frequency of

wobble operation(PA.02).

Ten’s place: Wobble operation amplitude

0: Relative to the wobble central frequency

The amplitude FW is determined by the central frequency and PA.04.

1: Relative to the maximum frequency

The amplitude FW is determined by the maximum frequency and PA.04.

Hundred’s place: Restart mode of wobble operation r

0: The KET-3000W1 restarts the wobble operation as per the recorded frequency and direction when it stops

last time.

1: The KET-3000W1 restarts the wobble operation from 0 HZ.

Thousand’s place: Save the wobble operation parameters upon power outage.

0: Saved

1: Not to be saved

Whenthe hundred’s place of PA.01 is set as 0, the wobble operation parameters will be saved when power

outage occurs.

PA.02 Preset wobble frequency Range: 0.00Hz~400.00Hz 0.00Hz

PA.03Hold time of preset wobble frequency Range: 0.0~3600.0s 0.0s

PA.02 defines the KET-3000W1’s running frequency before entering wobble mode.

If auto-start mode is selected (the unit’s place of PA.01 is set as 0), FA.03 defines the time that the KET-3000W1

operates at the preset wobble frequency. If manual start mode is selected, FA.03 is disabled.

PA.04 Wobble amplitude Range: 0.0~50.0％ 0.0%

Relative to central frequency: FW= central frequency×PA.04

The central frequency is the frequency from frequency reference source defined by P1.04.

Relative to maximum frequency: FW= maximum frequency (P1.01) ×PA.04


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PA.05 Jump frequency Range: 0.0~50.0％ 0.0%

As shown in Fig. 5-32, there is no jump frequency if PA. 05 is set as 0.

The setting is the percentage of wobble amplitude.

PA.06 Wobble operation cycle Range: 0.1~999.9s 10.0s

As shown in Fig. 5-32, PA.06 defines a complete cycle of wobble operation including rising and falling

processes.

PA.07 Rising time of triangle wave Range: 0.0~100.0％ 50.0%

Rising time of wobble operation PA.06×PA.07(second):

Falling time of wobble operation PA.06×(1-PA.07)(second).Please refer to Fig. 5-32 for details..

5.12 I/O terminal function parameters (Pb Group)

Pb.00 Input terminal X1 function selection Range: 0~42 0





Pb.05Input terminal X6function selection (reserved for

3.7KW or below models) Range: 0~42 0

Pb.06 Input terminal X7 function selection (reserved for

3.7KW or below models)

Range: 0~42 0

Pb.07 Input terminal X8 function selection (reserved for

3.7KW or below models)

Range: 0~42 0

Function 41 and 42 are disabled for 3.7KW or below models.

0: Reserved

It disables the terminal’s function. The KET-3000W1 ignores the signal input via this terminal. The unwanted

terminal is recommended to be set as 0 so as to avoid wrong connection or action.

The effective signal of 1~42 is shown in Table 5-2

Table 5-2 The effective signal of multi-function terminals

Function

No.

Effective

way

Function

No.

Effective

way

Function

No.

Effective way

1 Level 15 Level 29 Level

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3 Level 17 Level 31 Falling edge

4 Level 18 Level 32 Rising edge

5 Rising edge 19 Level 33 Level






11 Level 25 Level 39 High frequency signal

12 Level 26 Level 40 High frequency signal

13 Level 27 Level 41, 42 High frequency signal

14 Level 28 Level

1~4: Multi-step frequency reference

Up to 16 speed references can be set through different 0/1 combinations of terminals K4, K3, K2 and K1. K1

corresponds to terminal 1, while K2 to terminal 2, K3 to terminal 3 and K4 to terminal 4, as shown inTable 5-3

and Fig. 5-33.

Table 5-3 Truth table of multi-step frequency terminal function

K4 K3 K2 K1 Frequency setting

0 0 0 0 Multi-step frequency 0

















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Fig. 5-33 Time sequence of multi-step frequency

The frequency references are used in multi-step speed operation. Take terminals X1, X2, X3 and X4 for example:

If setting Pb.00 as 1, Pb.01 as 2, Pb.02 as 3 and Pb.03 as 4, the KET-3000W1 can realise 16-step speedoperation

through the logical combinations of the terminal X1~X4:

If setting Pb.00 as 1, Pb.01 as 2, and Pb.02 as 3, the KET-3000W1 can realise 8-step speed operation through

the logical combinations of the terminal X1~X3:

If setting Pb.00 as 1 and Pb.01 as 2, the KET-3000W1 can realise 4-step speed operation through the logical

combinations of the terminal X1~X2:

If setting Pb.00 as 1, the KET-3000W1 can realise 2-step speed operation through the terminal X1.

5: External reset

If the setting is 5, the KET-3000W1 can be reset via this terminal when it has a fault. Accordingly the terminalhas

the same function as the RESET key on the keypad.

6: Acceleration/deceleration prohibition

If the setting is 6, this terminal can make the motor immune to external signals (except stop command) and

maintain operation at the current speed.

The function is disabled in the process of normal deceleration to stop.

7 and 8: Acceleration/deceleration time selection

Acceleration/deceleration time 1~4 can be selected through combination of the terminals, as shown in Table

5-4.

Table 5-4 Truth table of acceleration and deceleration time

Acc/ Dec terminal 2 Acc/ Dec terminal 1 Acc/ Dec selection

0 0 Acc/ Dec time 1

0 1 Acc/ Dec time 2

1 0 Acc/ Dec time 3

1 1 Acc/ Dec time 4

Take multi-function input terminal X1 and X2 for example,

If setting Fb:00 as 7 and Fb:01 as 8, acceleration/deceleration time 1~4 can be selected by the logic combination

of X1 and X2:

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If only setting Fb:00 as 7 or 8, acceleration/deceleration time 1~2 can be selected by X1.

9 and 10: External pause signal (normally-open/normally-closed input)

After receiving an external pause command, the KET-3000W1 will decerelate as per the preset deceleration

mode, and maintain operation at zero-frequency. Once the signal is removed, the KET-3000W1 will accelerate

as per the preset acceleration mode to the previous frequency, and keep operation.

11 and 12: Coast to stop(normally-open/normally-closed input)

The KET-3000W1 will coast to stop immediately when a multi-function terminal is set as 11 or 12.

13 and 14: Frequency ramp UP/DOWN

If the setting is 13 or 14, the terminal can be used to increase or decrease frequency, and accordingly enables

remote control (providing a motorised potentiometer function). This terminal is enabled when P1.04=1 or

Pd.00=2. Increase or decrease rate is determined by P7.13 and P7.14, as shown in Table 5-5.

Table 5-5 Function of UP/DOWN terminals

UP terminal DOWN terminal Frequency change trend

0 0 To keep the frequency reference

0 1 frequency reference to decrease

1 0 frequency reference to increase

1 1 To keep the frequency reference

15: Clearing the counter to zero

When the setting is 15, this terminal is used to clear the counter to zero. It is normally used with Function 38.

16: Pausing PLC operation

If the setting is 16, this terminal is used to pause the PLC operation. The KET-3000W1 will operate at the

frequency of the current step when the terminal is enabled, and will not time PLC operation. When Pausing PLC

operation signal is removed, the timing will continue.

17 and 18: External fault signal (normally-open and normally-closed input)

If the setting is 17 or 18, the fault signal of external equipment can be input via the terminal, which is convenient

for the KET-3000W1 to monitor the external equipment. Once the KET-3000W1 receives the fault signal, it will

display external fault. The fault signal has two inputting modes, normally-open and normally-closed input.

19, 20, 21 and 22: Frequency source 1/2/3/4 selection (as shown in the Table 5-6)

Table 5-6 Frequency source switch truth table

Terminal 4 Terminal 3 Terminal 2 Terminal 1 Selection

0 0 0 0 Hold the source defined by P1.04

0 0 0 1 Digital reference via the keypad

0 0 1 0 Digital reference via terminal

0 0 1 1 Digital reference via communication

0 1 0 0 AI1 analog reference

0 1 0 1 AI2 analog reference

0 1 1 0 Terminal pulse reference

0 1 1 1 Potentiometer reference


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Terminal 4 Terminal 3 Terminal 2 Terminal 1 Selection

1 0 0 0 Multi-step speed control via terminal

input

1 0 0 1 Closed-loop adjusting operation

1 0 1 0 Simple PLC operation






Up to 10 frequency reference sources can be switched through the 0/1 combination of terminals 1-4. Also take

X1~X4 for example:

If setting Pb.00 as 19, Pb.01 as 20, Pb.02 as 21 and Pb.03 as 22, up to 10 frequency reference sources can be

switched through the logical combination of the terminals X1~X4:

If setting Pb.00 as 19, Pb.01 as 20 and Pb.02 as 21, up to 7 frequency reference sources can be switched

through the logical combination of the terminals X1~X3:

If setting Pb.00 as 19 and Pb.01 as 20, up to 3 frequency reference sources can be switched through the logical

combination of the terminals X1~X2.

23: AI2 to be the frequency source

If the setting is 23, the frequency reference source can be forcibly switched to AI2 analog reference. The

frequency reference source will restore to the previous one once this terminal is disabled.

The priority of frequency sources is shown below.

AI2 frequency source > frequency reference terminal 1, 2, 3 and 4 > frequency source defined by P1.04

The modification of frequency reference is enabled at stop.

24 and 25: Run command source selection

The control modes in Table 5-7 can be selected by the different combinations of terminals 1 and 2.

Table 5-7 Truth table of preset closed-loop reference

Terminal 2 Terminal 1 Preset close loop reference

selection

0 0 Hold the control mode

0 1 Keypad control mode

1 0 Terminal control mode

1 1 Serial port control mode

The KET-3000W1 can accept run command source switch changes while running, but the modification is

enabled only when the KET-3000W1 stops.

26: Terminal control mode to be the run command source

When this terminal function is enabled, the run command source will be forcibly switched to the terminal control

mode. Once this terminal is disenabled, the KET-3000W1 reverts to the previous run control mode.

The priority of frequency selection is below.

Terminal control mode to be the run command source> Run command source selection terminal 1and 2 > Run

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command source defined by P1.07

The modification of run command source is enabled only at stop.

27: Accelereation/Deceleration mode selection

If the setting is enabled, the linear accelereation/deceleration mode will be selected. While the setting is

disenabled, acceleration/deceleration mode is defined by P7.00.

The modification is enabled only at stop.

28: Closed-loop operation pause

If the setting is enabled, the closed-loop operation is suspended, and the KET-3000W1 runs with the current

frequency.

29 and 30: Forward Jog / Reverse Jog (JOGF/JOGR)

In terminal control mode, if 29 or 30 are enabled, then forward jog or reverse jog operation are enabled. JOGF is

forward jog command and JOGR is reverse jog command. Jog frequency, interval and acceleration/deceleration

time of jog operation are defined by P2.13, P2.14, P7.11, and P7.12 respectively, as shown in Table 5-8.

Table 5-8 Truth table of logical jog

JOGR JOGF Run status

0 0 Stop

0 1 Forward jog

1 0 Reverse jog

1 1 Stop

31: 3-wire operation mode

Please refer to description of Pb.08.

32:Switch to wobble operation

When the start mode of wobble operation is selected as manual start, the KET-3000W1 will switch to wobble

operation if this terminal is enabled.

33: Reset the wobble operating status

If wobble operation is enabled, connecting this terminal can clear all the memorised information about the

wobble operation no matter the KET-3000W1 is in auto start or manual start mode. The KET-3000W1 will

maintain operation at the current frequency. Wobble operation restarts after this terminal is disconnected.

Please refer to Group PA.

34: External stop command

This stop command is active in all control modes. When the setting is 34 and valid, the KET-3000W1 will stop as

per the mode defined by P6.01.

35: Disabling the KET-3000W1’s operation

If the setting is 35, this terminal can enable the KET-3000W1 that is in operating status to coast to a stop. If the

KET-3000W1 is at rest, this terminal can prohibit it from starting. This function is mainly used in applications with

safety protectionrequirements .

36: Clearing auxiliary frequency reference

When the setting is 36, this terminal is used to clear the counter to zero, but it is only valid for digital auxiliary


79

reference (Pd.00=1, 2 or 3).

37: Reset the stop status of PLC operation

In the stop status of PLC operation, the memorized PLC operating information (operating step, operating time,

operating frequency, etc.) will be cleared when this terminal is enabled.

38: Inputting triggering signal to counter

When the setting is 38, this terminal is used to input pulse signals to the internal counter of the KET-3000W1.

The highest pulse frequency is 200Hz. The present counting value can be saved at power off. See Pb.21 and

Pb.22

The actual count is accumulated up to9999 till the clearing signal is enabled.

39: Pulse frequency input

For 5.5KW and above models, this setting is only valid for terminal X7 and X8, while for 3.7KW and below

models, this setting is only valid for terminal X4 and X5. This terminal is used to input pulse signal as frequency

reference. See Group P2 parameters for the relationship between input pulse frequency and frequency

reference.

This function is used to set frequency or pulse reference of PG closed-loop.

40: Single-pulse speed measuring input

For 5.5KW and above models, this setting is only valid for terminal X7 and X8, while for 3.7KW and below

models, this setting is only valid for terminal X4 and X5. If this terminal is enabled, single-pulse pulse speed

feedback control can be realised in conjunction with PG.

Single-pulse speed input is used as feedback of PG closed-loop.

41 and 42: Speed measuring input SM1 and SM2

For 5.5KW and above models, this setting is only valid for terminal X7 and X8, while 3.7KW and below models

don’t have such function.Speed measuring input is used as feedback of PG closed-loop.

Pb.08 FWD/REV operation mode Range: 0~3 0

This function defines the four control modes via the external terminals.

0: 2-wire operation mode 1

Fig. 5-34 2-wire operation mode 1

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Fig. 5-35 2-wire operation mode 2


Fig. 5-36 3-wire operation mode1

SB1: Normally-closed Stop button (effective at the falling edge)

SB2: Normally-open button for forward operation (effective at the rising edge)

SB3: Normally-open button for reverse operation(effective at rising edge

Terminal Xi is the multi-function input terminal of X1~X8. At this time, the function of this terminal should be

defined as Function 31 of “3-wire operation”.

If the shift between SB2 and SB3 is disabled,the KET-3000W1 will hold the control mode.

3: 3-wire operation mod 2

Fig. 5-37 3-wire operation mod 2

SB1: Normally-closed Stop button effective at the falling edge

SB2: Normally-open button for forward operation. effective at the rising edge (If SB2 changes from enabled

into disabled, the KET-3000W1 will keep the same mode).

K: Direction selection button. (level on)


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Terminal Xi is the multi-function input terminal of X1~X8. At this time, the function of this terminal should be

defined as Function 31 of “3-wire operation”.

In the terminal control mode, for 2-wire operation mode 1 and 2, even when the effective way of the terminal is

level, the KET-3000W1 will not operate if it stops due to theSTOP command from terminal funcion11,12 and 34

or PLC stop after single cycle. The KET-3000W1 can be restart by triggering the FWD/REV.

Pb.09 Terminal filtering time Range: 2~100ms 10ms

This setting is used to filter the terminal input signal to avoid the wrong action.

Pb.10 Output terminal Y1 function selection Range: 0~22 1

Pb.11 Output terminal Y2 function selection Range: 0~22 2

Pb.12 Output relay function selection Range: 0~22 6

0:Reserved

This setting is used to disable the output terminals.

1: KET-3000W1’s running signal

Signal will be output that indicates the KET-3000W1 is in running status.

2: Frequency arriving signal (FAR)

Pulse signal will be output when the KET-3000W1’s output frequency is within the FAR range (Pb.15).

3: Zero-speed running

The output frequency is 0Hz. Signal will be output when the KET-3000W1 is in running status.

4: Overload signal (OL)

The signal can be output when the KET-3000W1’s output current value is higher than that defined by PF.03 and

the overload time is longer than that defined by PF.04.

5:Undervoltage lock-up signal (LU)

When the DC bus voltage is lower than the undervoltage threshold, the KET-3000W1 will output undervoltage

signal and display –LU-.

6: KET-3000W1 fault

The KET-3000W1 will output fault signal when it has a fault.

7 and 8: Frequency detection threshold (FDT1, FDT2

Pleasse refer to Pb.16~Pb.19.

9: Simple PLC operating status indication

This function is enabled if the KET-3000W1 is at simple PLC operating.

10: PLC cycle completion indication

The indicating signal (single pulse signal, 500ms) will be output if one cycle of PLC operation is finished.

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11: Completion of simple PLC operation stages

The indicating signal ( single pulse signal, 500ms) will be output if the current step of PLC operation is finished.

12: Completion of simple PLC operation

The indicating signal ( single pulse signal, 500ms) will be output if the PLC operation is finished.

13: PLC pausing indication

The indicating signal will be output if the PLC operation is suspended by external terminals.

14: Preset counting value reach

15: Reference length arriving indication

Refer to Pb.21~Pb.22.

16: KET-3000W1 ready

If this signal is output, it means the KET-3000W1 has no fault, its DC bus voltage is normal and its operation

prohibition terminaln is invalid and it can receive starting command.

17: Stop due to external fault

The KET-3000W1 will output trip signal and alarm (E019) when an external fault occurs.

18: Limitation of upper limit of frequency

The indicating signal will be output if the frequency reference is beyond the upper limit of frequency.

19: Limitation of lower limit of frequency

The indicating signal will be output if the frequency reference is lower than the lower limit of frequency.

20: Limitation of upper/lower limits of wobble frequency

In the process of wobble operation, if the wobble frequency calculated by the central frequency is higher than

upper limit of frequency (P1.02) or lower than the lower limit of frequency (P1.03), signal will beoutput, as shown

in Fig.5-38.

Fig. 5-38 Upper and lower limits of wobble operation

21: Preset operating time out

The indicating signal ( single pulse signal, 500ms) will be output if the KET-3000W1’s operating time (PC.08)

reaches the preset operating time (Pb.20).

22: Output from series port communication.


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Output signal of Y1, Y2 or delay is controlled by the series port directly.

Pb.13 Energy Meter 0.0~9999kWh

Pb.14 Energy Meter Extension 1.0~9999

Pb.15 FAR range Range: 0.0~400.00Hz 2.50Hz

The pulse signal will be output if the KET-3000W1’s output frequency is within the FAR range.

Fig. 5-39 Sequence of FAR signal

Pb.16 FDT1 level Range: 0.0~400.00Hz 50.00Hz

Pb.17 FDT1 lag Range: 0.0~400.00Hz 1.00Hz

Pb.18 FDT2 level Range: 0.0~400.00Hz 25.00Hz

Pb.19 FDT2 lag Range: 0.0~400.00Hz 1.00Hz

The indicating signal can be output if the output frequency is higher than certain frequency (FDT1 level), and

becomes disabled when the output frequency is lower than certain frequency (FDT1-FDT1 lag). Please refer to

Fig. 5-40.

Fig. 5-40 Sequence of FDT signal

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Pb.20 Preset operating time Range: 0～168.0 hours 0

When the total operating time reaches the preset operating time (Pb.20), the KET-3000W1 will output an

indicating signal (500ms).

Pb.21 Preset counting value arriving Range: Pb.22~9999 0

Pb.22 Specified counting value arriving Range: 0~Pb.21 0

Preset counting value indicates that when the number of pulse input by the multi-function input terminals

reaches a certain quantity, the multi-function output terminals or relay will send an indicating signal.

Specified counting value presents that when the number of pulse input by the multi-function input terminals

reaches a specified quantity, the multi-function output terminals or relay will send an indicating signal until the

pulse number hits the preset counting value.

For instance, as shown in Fig. 5-41, if Pb.21 is set as 7, Pb.22 is set as 3, Y1 selects the preset count arriving

function (Pb.10=14), Y2 selects the specified countarriving (Pb.11=15), X1 is counter trigger signal

inout(Pb.00=38), Y2 will output an indicating signal when X1 inputs the third pulse until the reference signal

returns to Y1: Y1 will output anindicating signal when X1 inputs the seventh pulse: output signal of Y1 returns to

low level when X1 inputs the eighth pulse. Sequence of count value arriving is shown in Fig.5-41.

Fig. 5-41 Sequence of count value arriving

Pb.23 Terminal’s positive and negative logic selection Range: 000~0x1FFF 0

Positive logic: enabled when the multi-function terminal, FWD, REV are connected withcorresponding

commonterminals: and disabled when disconnected

Negative logic:disabled when the multi-function terminal, FWD, REV are disconnected with corresponding

common terminals: and enabled when disconnected

The physical path each bit (binary)stands for are in the below table.

Thousand’s

place

Hundred’s place Ten’s place Unit’s place

BIT

12

BIT

11

BIT

10

BIT

9

BIT

8

BIT

7

BIT

6

BIT

5

BIT

4

BIT

3

BIT

2

BIT

1

BIT

0

RA/RB/RC Y2 Y1 REV FWD X8 X7 X6 X5 X4 X3 X2 X1

0 or 1 stands for different logic (0 stands for positive logic while 1 for negative logic)


85

Pb.24 Output function selection of terminal AO1 Range: 0~10 0

Pb.25 Output function selection of terminal AO2 Range: 0~10 3

Pb.26 Output function selection of terminal DO Range: 0~0 0

0: Output frequency (0~Maximum output frequency)

1: Frequency reference (0~Maximum output frequency)

2: Output current: (0~twice of KET-3000W1’s rated current)

3: Output current (0~twice of motor’s rated current)

4: Output torque (0~twice of motor’s rated torque)

5: Output voltage (0~1.2 times of KET-3000W1’s rated voltage)

6: Bus voltage (0~800V)

7: AI1 (0~10V)

8: AI2 (0~10V/0~20mA)

9: Output power (0~twice of rated power)

10: Potentiometer analog reference (0~5V)

Pb.27 Analog output AO1 bias Range: 0.0~10.0V 0.0V

After Pb.27 is set, the KET-3000W1 will work out automatically output gain ( not Pb. 29), so as to enable analog

output value of AO1 up to 10V at maximum.

Pb.28 Analog output AO2 bias Range: 0.0~10.0V 0.0V

After Pb.28 is set, the KET-3000W1 will work out automatically output gain ( not Pb. 30), so as to enable analog

output value of AO2 up to 10V at maximum.

Pb.29 AO1 output gain Range: 0.0~200.0％ 100.0%

Pb.30 AO2 output gain Range: 0.0~200.0％ 100.0%

These two parameters are used to realise the proportional relation adjustment of AO1/AO2 analog output.

The format is: Y=kX+b

Y is actual output value, X is output value with ratio and gain not being adjusted, k is output gain of AO1 or AO2

(Pb.29 and Pb.30), b is anaog bias (Pb.27 and Pb.28).

Pb.31 Maximum output pulse frequency of DO Range: 0.1KHz~50.0kHz 10.0kHz

Pb.31 defines the permissible maximum output frequency of DO.

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5.13 Display control parameters (PC Group)

PC.00 Display parameter selection 1 during operation Range: 0x000~0x3FF 3FF

If all the bits are set as 0, the display parameter is default output frequency.

In binary system, the parameter PC. 00 doesn’t display if bit is 0 while it does display if bit is 1.

Unit’s place：

BIT3 BIT2 BIT1 BIT0

Running speed (r/min,

blinking)

Output current (A) Frequency

reference (Hz)

Output frequency

(Hz)

Ten’s place:

BIT3 BIT2 BIT1 BIT0

Output power Preset linear speed

(m/s)

Running linear speed

(m/s)

Preset speed (r/min)

Hundred’s place：

BIT1 BIT0

Output voltage (V) Output torque (%)

PC.01 Display parameter selection 2 during operation Range: 0x00~0xF 000

In binary system, the parameter PC. 00 doesn’t display if bit is 0 while it does display if bit is 1.

Unit’s place：

BIT3 BIT2 BIT1 BIT0

Potentiometer frequency reference (V) AI2 V AI1 V

DC Bus voltage (V)

Ten’s place：

BIT3 BIT2 BIT1 BIT0

Terminal status

External counting

value

Analog closed-loop reference

(%, blinking)

Analog closed-loop

feedback %

The terminal status display of PC.01and PC.02 is shown below.

BIT 12 11 10 9 8 7 6 5 4 3 2 1 0

Terminal RA/RB/

RC

Y2 Y1 REV FWD X8 X7 X6 X5 X4 X3 X2 X1

That the corresponding bit is 0 means the terminal is disabled while 1 means it is enabled.

For 3.7KW and below models, there is no X6, X7, X8 and Y2terminals andBIT5, BIT6, BIT7 and BIT11 are

reserved.


87

PC.02 Display parameter selection at stop Range：0x000~0x7F 7F

Multi-step frequency is default display when all the settings are “0”.

In Binary setting, the parameter will not be displayed when the bit is “0”, while displayed when the bit is “1”.

Unit’s place:

BIT3 BIT2 BIT1 BIT0

DC bus voltage Preset linear speed

m/s

Preset rotating speed

r/min

Multi-step frequency

Hz

Ten’s place:

BIT3 BIT2 BIT1 BIT0

Analog closed-loop

feedback %

Keypad displays the voltage from

potentiometer

AI2 V AI1 V

Hundred’s place:

BIT2 BIT1 BIT0

Terminal status no unit External attribute no unit Analog closed-loop setting %

PC.03 Rotating speed display coefficient Range：0.1%~999.9% 100.0%

PC.03 is only used for parameter display calculation of operating and stop status.

Mechanical rotating speed = Actual rotating speed × PC.03 PG

Mechanical rotating speed = 120 × operating frequency/pole-pairs of motor × PC.03 non PG

Setting rotating speed = Closed-loop setting speed×PC.03 PG

Setting rotating speed = 120× setting frequency/ pole-pairs of motor × PC.03 non PG

Note：This parameter has no influence on the actual rotating speed.

PC.04 Linear speed coefficient Range：0.1%~999.9% 100.0%

PC.04 is only used for parameter display calculation at run and stop status.

Operating linear speed = operating frequency × PC.04

Preset linear speed = multi-step frequency × PC.04

Note: This parameter has no influence on actual rotating speed. When the linear speed is a 5-digit number, only

the higher four places will be displayed and the four decimal points will be on.

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PC.05 Closed-loop analog display coefficient Range：0.1%~999.9% 100.0%

Closed-loop analog reference/feedback display range: 0.1%~999.9%

PC.06 Total operation time Record range：0～65535 hours

PC.07 Total power-on time Record range：0～65535 hours

PC.06 and PC.07 define the KET-3000W1’s total operation time and total power-on time.

PC.08 Total operation time of current operation Record range：0～168.0 hours

PC.09 Total power-on time of current operation Record range：0～168.0 hours

PC.08 and PC.09 define the KET-3000W1’s total operation time and total power-on time of current operation.

The records will be cleared when the KET-3000W1 is switched off.

PC.10 DSP software version Factory setting

PC.11 MCU software version Factory setting

PC.12 configuration no. Factory setting

5.14 Function-boost parameters (Pd Group)

Pd.00 Auxiliary frequency referencesource selection Range：0～10 0

Pd.01 Auxiliary analog reference frequency coefficient Range：0.00～9.99 1.00

Pd.02 Initial auxiliary digital reference frequency Range：0.00～400.00 0.00

Pd.03 Auxiliary digital reference frequency control Range：000～111 000

The multi-step frequency of the KET-3000W1 is the result of both master reference frequency and auxiliary

reference frequency. Pd.00~Pd.03 define auxiliary reference frequency selector. Please refer to Fig. 5-42.

When the auxiliary referencesource is the same as the master frequency referencesource, the auxiliary

referencesource is disabled.

When the master referencesource selects PLC operation, multi-speed operation, closed-loop operation or

wobble operation, auxiliary referencesource is disabled.


89

Fig. 5-42 (a) Frequency source description

Fig. 5-42 (b) Frequency source description

Table 5-9 Auxiliary frequency reference source selection

Source Source name Description

0 No auxiliary reference frequency

1 Digital reference 1 adjusted by the key and

key on keypad

The initial value is directly

given by Pd.02. To set

Pd.03 can save the

modified frequency to Pd.02

at power loss.

2 Digital reference 2 adjusted by terminal UP

/DOWN

3 Digital reference 3 given by serial port

4 AI1 analog input Decided by the actual

analog input value. Please

see P2.00 for frequency

characteristics curve

selection.

5 AI2 analog input

6 Pulse terminal

7 Keypad potentiometer

8 AI1-5

9 AI2-5

10 Pulse frequency-0.5×P1.01

90

When digital setting 3 is selected, the user can adjust the auxiliary frequency on the host by modifying Pd.03.

When selecting AI1-5 or AI2-5 as auxiliary frequency referencesource, 5V analog input can be regarded as the

central point, then from 0~5V, the reference frequency reduces with the increase of the voltage, and from

5~10V, the reference frequency increase with the voltage.

Pd.01: Auxiliary analog reference frequency coefficient

It is valid only when Pd.00=4～10. Pd.01 is used for gain calculation first, and then for auxiliary reference

frequency calculation according to the frequency characteristics curve defined by P2.00.

Pd.02: Initial auxiliary digital reference frequency

Valid when Pd.00=1～3, to provide the initial auxiliary reference frequency in the three modes mentioned

above.

Pd.03: Auxiliary digital reference frequency control, valid when Pd.00=1～3

Unit’s place: Save selection at power loss

0: Save auxiliary frequency at power loss

The auxiliary frequency will be saved to Pd.02 at power loss.

1: Not save auxiliary frequency at power loss

Ten’s place: Frequency disposal when the KET-3000W1 stops

0: Maintain the auxiliary frequency when the KET-3000W1 stops

1: The auxiliary frequency returns to Pd.02 when the KET-3000W1 stops

Hundred’s place: Frequency polarity

0: Positive polarity. The multi-step frequency is the sum of master frequency and auxiliary frequency.

1: Negative polarity. The multi-step frequency is the difference of master frequency subtracting auxiliary

frequency.

Pd.04 Multi-step frequency adjustment

selection

Range：0 1 2 0

Pd.05 Adjustment coefficient of multi-step

frequency

Range：0.0％～200.0％ 100.0％

The function is to fix the multi-step frequency adjustment mode (the compounded frequency by master

reference frequency and auxiliary reference frequency).

0：No function

Multi-step frequency = master reference frequency + auxiliary reference frequency

1：To adjust as per the max. output frequency P1.01

Multi-step frequency = master reference frequency + auxiliary reference frequency + P1.01 × Pd.05-100％


91

2：To adjust as per the current frequency

Multi-step frequency = master reference frequency + auxiliary reference frequency × Pd.05

Pd.06 Cooling fan control Range：0 1 2 0

0：Auto stop mode

The fan runs all the time when the KET-3000W1 is in operating status. After the KET-3000W1 stops for 3

minutes, the fan stops if the KET-3000W1 is not overheated. The fan will continue running if the overheat

protection is activated.

1：Immediate stop mode

The fan runs all the time when the KET-3000W1 is in operating status and stops when the KET-3000W1 stops.

2：The fan runs continuously when power on

The fan runs continuously after the KET-3000W1 is switched on.

Pd.07 Droop control Range：0.0～10.00Hz 0.00Hz

This function is used in the application that several KET-3000W1 drive one motor. The function can make the

KET-3000W1 share the load equally. When the load of one KET-3000W1 is heavier, this KET-3000W1 will reduce

its output frequency to shed part of the load according to the setting of Pd.07.

Pd.08 Overshoot enabling Range：0 1 1

0：Disabled

1：Enabled

Pd.09 Zero-frequency operation threshold Range：0.00～400.00Hz 0.00Hz

Pd.10 Zero-frequency hysteresis Range：0.00～400.00Hz 0.00Hz

Pd.09 and Pd.10 are used to set the zero-frequency operation hysteresis, please see Fig.5-43:

Take AI2 current reference source for example:

Starting process:

After the running command is sent out, the motor will start and accelerate to the frequency corresponding to

analog current input until analog current input reaches or exceeds the preset value of Ub, or the multi-step

frequency reaches fb.

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Stop process:

The KET-3000W1 will not stop immediately when the analog current input is reduced to Ub. It will stop its output

when the current drops to Ua and the corresponding frequency is fa.

“fa” is the zero-frequency operation threshold defined by Pd.09. “fb-fa” is the hysteresis of zero-frequency

operation defined by Pd.10.

This function can enable the KET-3000W1 to enter dormant state so as to save energy. Besides, it helps avoid the

KET-3000W1 frequent starting at the threshold of zero-frequency operation by properly setting the hysteresis.

Fig. 5-43 Hysteresis of zero-frequency operation

fa: zero-frequency operation threshold

fb: fa + zero-frequency hysteresis

fc: frequency corresponding to voltage input

Pd.11 Trip-free selection at momentary power loss Range：0 1 0

Pd.12 Freq. decrease rate at voltage

compensation

Range：0.0～99.99Hz/s 10.00Hz/s

Pd.13 Voltage rise diagnosis time of trip-free

operation at momentary power loss

Range：0.00~100.00s 0.50s

Pd.14 Reference voltage of trip-free operation at

momentary power loss

Range：60.0%~100.0% 80.0%


93

Trip-free operation during momentary power loss enables the KET-3000W1 to automatically perform low-voltage

compensation when the voltage decreases or instantaneous under-voltage occurs. The KET-3000W1 can

continue to operate without tripping by reducing its output frequency and feedback energy via motor. Please see

Fig. 5-44.

If Pd. 11 is set to 0, this function is disabled.

If Pd. 11 is set to 1, this function is enabled and low-voltage compensation is activated. If the bus voltage is lower

than Pd.14 (reference voltage of continuous operation at momentary power loss), the KET-3000W1 will decrease

the operating frequencyaccording to Pd.12 (freq. decrease rate at voltage compensation). If the bus voltage is

higher than Pd.14, and maintains the voltage rise diagnosis time (Pd.13), the KET-3000W1 will operate with the

multi-step frequency. Otherwise, the KET-3000W1 will continue to decrease frequency to “0”, and stop. Please

note, if Pd.12 is set too small, the feedback energy of motor will be too small to achieve voltage compensation

effect. If Pd.12 is set too big, the feedback energy of motor will be too large and over-voltage protection might be

activated.

Fig. 5-44 Trip-free function description

Pd.15 Restart after power failure Range：0 1 0

Pd.16 Delay time for restart after power

failure Range：0.0～10.0s 0.5s

Pd.15 and Pd.16 decide in different control modes whether the KET-3000W1 starts automatically or not and the

delay time for restart when the KET-3000W1 is switched off and then switched on.

If Pd.15 is set as 0, the KET-3000W1 will not run automatically when the KET-3000W1 is powered on after power

failure.

If Pd.15 is set as 1, when the KET-3000W1 is powered on after power failure, it will wait certain time defined by

Pd.16 and then start operation automatically.

94

5.15 Communication Parameters (PE Group)

PE.00 Communication configuration Range：00~55 04

The LED ten’s place：data format The LED unit’s place：baud rate selection

0 1-8-2 format no parity RTU

0 1200bps

1 1-8-1 format even parity RTU

1 2400bps

2 1-8-1 format odd parity RTU

2 4800bps

3 1-7-2 format no parity ASCII

3 9600bps

4 1-7-1 format even parity ASCII

4 19200bps

5 1-7-1 format odd parity ASCII

5 38400bps

PE.01 Local address Range：0~247 5

PE.02 Time threshold for judging

communication status Range：0.0~1000s 0.0s

PE.03 Host PC response delay Range：0~1000ms 5ms

When the local address is set to 0, it means broadcast address.

Please refer to Appendix 4 for more details.

5.16 KET-3000W1 and Motor Protection Parameters (PF Group)

PF.00 Protection of overvoltage at stall Range：0 1 1

PF.01 Overvoltage point at stall Range：120.0％～150.0％ 130.0％

0: Disabled (The energy-consumption braking chopper and braking resistor are recommended to be installed if

PF.00 is set to 0.)

1: Enabled

During deceleration, the motor’s decelerate rate may be lower than that of the KET-3000W1’s output frequency

due to the load inertia. At this time, the motor will feed the energy back to the KET-3000W1, resulting in voltage

rise on the KET-3000W1's DC bus. If no measures taken, the KET-3000W1 will trip due to over voltage. During

the deceleration, the KET-3000W1 detects the bus voltage and compares it with the over voltage point at stall

defined by PF.01. If the bus voltage exceeds the stall overvoltage point, the KET-3000W1 will stop reducing its

output frequency. When the bus voltage becomes lower than the point, the deceleration continues.


95

If overvoltage at stall lasts more than 1 minute, the KET-3000W1 will alarm fault by displaying E027. And at this

time, the KET-3000W1 stops output.

If the overvoltage point at stall is set a little lower, deceleration time should be comparatively longer.

PF.02 Overload detection Range：000~111 000

PF.03Overload pre-alarm detection threshold Range：20.0％～200.0％ 130.0％

PF.04 Overload detection time Range：0.0～60.0s 5.0s

PF.02 Overload detection:

The unit’s place：Overload pre-alarm detection

0：Overload pre-alarm function is active all the time when the KET-3000W1 is in operating status

1：Overload pre-alarm function is active only when the motor is operating at constant speed

The ten’s place：Action selection for overload pre-alarm

0：The KET-3000W1 doesn’t alarm and continues operation when detecting an active overload signal

1：The KET-3000W1 alarms and stops operation when detecting an active overload signal

The hundred’s place：Overload threshold selection

0：Ratio of load current to the motor’s rated current display motor overload fault

1：Ratio of load current to the KET-3000W1’s rated current (display KET-3000W1 overload fault

PF.03 defines the current threshold for overload pre-alarm protection. The setting range is a percentage value of

the motor’s or the KET-3000W1’s rated current.

PF.04 defines the time during which the KET-3000W1 output current exceeds PF.03. If the status remains after

this period of time, the KET-3000W1 will output pre-alarm signal.

PF.05 Auto current limiting threshold Range：20.0～200.0％ 150.0％

PF.06 Freq. decrease rate at current

limiting

Range：0.00～99.99Hz/s 10.00Hz/s

PF.07 Auto current limiting selection Range：0~2 1

Auto current limiting function is used to limit in real time the load current smaller than the value defined by PF.05.

Therefore the KET-3000W1 will not trip due to surge current. This function is especially suitable for applications

with big load inertia or big change of load.

PF.05 defines the threshold of auto current limiting. It is a percentage of the KET-3000W1’s rated current. It is

default 150%.

96

PF.06 defines the decrease rate of output frequency when the KET-3000W1 is in auto current limiting status. If

PF.06 is set too small, overload fault may occur. If it is set too big, the frequency will change too sharply and

therefore, the KET-3000W1 may be in generating status for long time, which may result in overvoltage protection.

Whether the auto current limiting function is active is decided by PF.07.

PF.07 0, Auto current limiting function is disabled

PF.07 1, Auto current limiting function is enabled in acceleration/deceleration operating process, but disabled

in constant speed operating process.

PF.07 2, Auto current limiting function is enabled both in acceleration/deceleration operating process and in

constant speed operating process.

In auto current limiting process, the KET-3000W1’s output frequency may change: therefore, it is recommended

not to enable this function when stable output frequency is required.

When the auto current limiting function is enabled, the output overload capacity will impaired if PF.05 is set too

low.

PF.08 Auto reset times Range：0～10 0

PF.09 Reset interval Range：2.0～20.0s 5.0s

Auto reset function enables the KET-3000W1 to reset the fault as per the preset times and interval. When PF.08 is

set to 0, it means “auto reset” is disabled and the protective device will be activated in case of fault.

Auto reset function is disabled on condition that the following faults occur:

Fault code Fault name

E006 Autotuning fault

E013 Communication overtime

E014 EEPROM read-write fault

E015 Input phase loss

E016 Output phase loss

E017 Modular fault

E018 Current detection fault

E019 Peripheral device fault

E020 Contactor isn’t closed

E021 CPU fault

E022 Parameter setting fault

E028 Fans fault

During the reset interval, the KET-3000W1 stops output and operates at zero frequency. It will automatically

restarts with speed tracking after reset.

If no other fault is detected within 5 minutes, the auto reset times will be automatically cleared to “0”. On condition

of external fault reset, auto reset time will be cleared.


97

PF.10 Action selection at communication fault Range：0～2 1

0：The KET-3000W1 will alarm and coast to stop

1：The KET-3000W1 will alarm and continue operation

2：The KET-3000W1 will alarm and decelerate to stop according to Dec. time 1.

PF.11 Faulted replay action selection Range：00~11 0

The units place：In auto reset process

0：Faulted relay doesn’t act

1：Faulted relay acts

The tens place：In the undervoltage process

0：Faulted relay doesn’t act

1：Faulted relay acts

PF.12 Input phase loss detection reference Range：0~100% 7%

PF.13 Input phase loss detection time Range：0~20.0s 2.0s

PF.14 Output phase loss detection reference Range：0~100% 20%

PF.15 Output phase loss detection time Range：0~20.0s 5.0s

PF.12~PF.15 define the input/ output phase loss detection reference and time. When the KET-3000W1 detects

input voltage and output current hit the preset detection level and exceed the preset detection time, the

KET-3000W1 will perform phase loss protection as per PF.11.

Regarding to input phase loss protection, 3.7KW and below models need set PF.12, while there is no need to set

PF.12 for 5.5KW and above models.

When PF.12 or PF.13 is set to 0, the KET-3000W1 will not detect input phase loss fault.

When PF.14 or PF.15 is set to 0, the KET-3000W1 will not detect output phase loss fault.

PF.16 KET-3000W1 output load-loss detection

threshold

Range：0~100% 0%

PF.17 KET-3000W1 output load-loss detection

time

Range：0.0~60.0 1.0s

98

PF.16 defines the current threshold of load loss. It is a percentage of the KET-3000W1’s rated current.

If the KET-3000W1’s output current is smaller the PF.16 beyond the time defined by PF.17, the KET-3000W1 will

display KET-3000W1 load loss fault.

When PF.16 or PF.17 is set to 0, the KET-3000W1 will not detect load loss fault.

PF.18 Closed-loop reference lose detected value Range：0.0~100.0% 0%

PF.19 Closed-loop reference loss detection time Range：0.0~20.0s 1.0s

The max.value of closed-loop reference loss is 100%. If the closed-loop reference value is lower than the detected

value in the detection time, the KET-3000W1 will display closed-loop feedback fault.

If PF.18 or PF.19 is set to 0, the KET-3000W1 will not detect a closed-loop feedback fault.

PF.20 Closed-loop feedback loss detected value Range：0.0~100.0% 0%

PF.21 Closed-loop feedback loss detection time Range：0.0~20.0s 1.0s

The max.value of closed-loop feedback loss is 100%. If the closed-loop feedback value is lower than the detected

value in the detection time defined by PF.21, the KET-3000W1 will display closed-loop feedback circuit-broken

fault.

If PF.20 or PF.21 is set to 0, the KET-3000W1 will not detect closed-loop feedback circuit-broken fault.

PF.22 Fan block detection time Range：0～10min 1

PF.22 is only useful for 3.7KW and below models. When the fan block fault lasts more than a certain time defined

by PF.22, the KET-3000W1 will display fan block fault.

PF.23 Type of the fourth latest fault Actual record 0

PF.24 Type of the third latest fault Actual record 0

PF.25 Type of the second latest fault Actual record 0

PF.26 Type of the latest fault Actual record 0

Please see Chapter 6 for more details.

PF.27 DC Bus Voltage at last fault Actual record 0

PF.28 Output current at last fault Actual record 0

PF.29 Operating frequency at last fault Actual record 0

PF.27, PF.28, PF.29 record the KET-3000W1’s status parameters at last fault.

5.17 Manufacturer Parameters

The Py group is the manufacturer parameters group for debugging at the factory before delivery.

Chapter 6 Troubleshooting

99


The KET-3000W1 has inbuilt protective and warning self-diagnostic functions. If a fault occurs, the fault code will be

displayed on the keypad. At the same time, fault relay acts, accordingly the KET-3000W1 stops output, and the motor

coasts to stop.

When fault or alarm occurs, please record the fault details and take proper actions accoding to the below table.

After the fault is eliminated, please reset the KET-3000W1 by any of the following methods:

1) By keypad.

2) By reset terminal.

3) By communication.

4) By switching on the KET-3000W1 after switching off.

Please find below Table 6-1 for fault and troubleshooting of The KET-3000W1.

Table 6-1 Fault alarm description and counter-measures

Fault

code

Fault name Possible reasons of fault Counter-measures

No fault records / /

LU

DC bus

undervoltage

1) At the begining of powering on,

at the end of powering off

2) Input voltage is too low.

3) Improper wiring leads to

undervoltage of hardware.

1) It is normal status of

powering on and powering

off

2) Please check input power

voltage.

3) Please check wiring and

wire the KET-3000W1

properly.

E001

DC bus over voltage 1) Input voltage is too high.

2) Deceleartion time is too short.


overvoltage of hardware.

1) Please check power input.

2) Please set a proper value for

deceleration time.


wire the KET-3000W1

properly.

E002

Instant output over

current of

KET-3000W1

(hardware

overcurrent)

1) Improper connection between

KET-3000W1 and motor.

2) Improper motor parameters.

3) The rating of the used

KET-3000W1 is too small.


hardware overcurrent.

5) Acceleration/deceleration is

too short.

6) Instant stop occurs, the

running motor is restarted.

1) Connect the KET-3000W1

and motor properly.

2) Please set correct motor

parameters.

3) Select KET-3000W1 with

higher rating.


wire the KET-3000W1

properly.

5) Please set proper

acceleration time and

E003

KET-3000W1 output

overcurrent(software

overcurrent)

100

Fault

code


deceleration time.

6) Please set start mode to be

speed tracking.

E004 Fault of braking

chopper

Braking circuit fault Please seek technical support.

E005

Motor stallout The motor runs with a speed

which exceeds the motor’s

rated speed.

Please check the motor and

load.

E006

Motor parameters

self-tuning fault

1) Improper setting of motor’s

rated paratmeters

2) Incorrect motor connection.

1) Please set proper value of

motor parameters

2) Please check motor

connection and connect it

correctly.

E007

KET-3000W1 over

load

1) Acceleration time is too

short.

2) Improper setting of V/F curve

or torque boost leads to over

current.

3) Instant power-off occurs, the

running motor is restarted.

4) Mains supply voltage is too

low.

5) Motor load is too high.

1) Adjust acceleration time.

2) Adjust V/F curve or torque

boost.

3) Please set start mode to be

speed tracking.

4) Please check mains supply

voltage.

5) Please use KET-3000W1

with proper power rating.

E008

Heat sink overheat

1) Ambient temperature is too

high.

2) KET-3000W1 exterior

ventilation is not good.

3) Fan fault (except the

KET-3000W1 without fan)

4) Fault occurs to temperature

detection circuit.

1) Please use KET-3000W1

with higher power capacity.

2) Improve the ventilation

around the KET-3000W1.

3) Replace the cooling fan.

4) Please seek technical

support.

E009

Motor overload

1) Improper setting of V/F curve.


low.

3) Normal motor runs for a long

time with heavy load at low

speed.

4) Motor’s overload protection

factor is not set properly.

5) Motor runs with blocked

torque or load is too heavy.

1) Adjust the setting of V/F

curve.

2) Check the power input.

3) Please use special motor if

the motor needs to operate

for a long time with heavy

load.

4) Please properly set the

overload protection factor

of the motor.

5) Please check the load and

mechanical transmission

device.


101

Fault

code


E010

KET-3000W1 is

unloaded

1) Load disappeared or comes

down suddenly.

2) Parameters are not set

properly.

1) Please check load and

mechanical transmission

devices.

2) Please set the parmeters

properly.

E011

Signal wire for

exterior analog

voltage/current input

is not well

connected

1) Analog input signal is less

than voltage lower-limit

2) Fault of analog input circuit.

1) Please check the

connection.


support.

E012

Fault of analog

closed-loop

feedback(wire is not

well connected or

feedback value is

out of the limit)

1) Analog input signal is less

than voltage lower limit.

2) Fault of analog input circuit.

1) Please check the

connection.


support.

E013

Time-out fault of

communication

1) RS485 connection fault.

2) RS485 is disconnected or not

well connected.

Please check the wire.

E014

Access fault of

KET-3000W1

EEPROM

Memory circuit fault of Controller

EEPROM

Please contact the supplier for

repairing.

E015

Fault of input phase For three-phase input

KET-3000W1, input phase loss

fault occurs to power input.

1) Please check the three

phase power input.


support.

E016

Output phase fault

or disconnection.

1) Output phase loss or

disconnection

2) Heavy imbalance of

KET-3000W1 ‘s 3 phase load

1) Please check the

connection between

KET-3000W1 and motor.

2) Please check the quality of

motor.

E017

Fault of power

module

1) Short circuit between phases

2) Short circuit to the ground

3) Output current is too high.

4) Power module is damaged.

1) Please check the

connection and connect

the wire properly

2) Please check the

connection and connect

the wire properly

3) Please check the

connection and

mechanism.

4) Please contact the supplier

for repairing.

E018 Fault of current

detection circuit

Current detection circuit is

damaged.

Please contact the supplier for

repairing.

102

Fault

code


E019 Fault of exterior

equipment

Fault terminal of exterior

equipment operates

Please check external

equipment.

E020

Contactor is not

actuated


low.

2) Contactor fault.

3) Charging resistor is

disconnected.

4) Fault of control circuit.

1) Please check the 3 phase

power input voltage

2) Replace the contactor.

3) Replace the charing

resistor.


support.

E021

CPU fault

1) Double CPU communication

is time out(3.7KW or below)

2) Fault of CPU.

1) Reset the KET-3000W1


support.

E022

Fault setting of

parameters

The power rating between motor

and KET-3000W1 is too

different.

Select KET-3000W1 with

suitable power rating.

E023

Encoder fault

1) Encoder is damaged

2) Encoder is not disconnected

properly.

1) Please check encoder and

replace it when

necessary.

2) Please check the

connection of the encoder.

E024 Reserved

E025 Reserved

E026 Reserved

E027

Stallout overvoltage

1 DC bus voltage is too high.

2 The setting of stallout

overvoltage is too low.

1) Please check power

input or check the

function of brake.

2) Set the value of

stallout overvoltage

properly.

E028 Cooling fan runs

with blocked torque

Something blocks the cooling fan. Clean the cooling fan

Chapter 7 Maintenance

103


Many factors such as ambient temperature, humidity, dust, oscillation, internal component aging, wear and tear will

give rise to the occurrence of potential faults. Therefore, it is necessary to conduct routine maintenance to the

KET-3000W1.

If the KET-3000W1 has been transported for a long distance, please check whether the components of the

KET-3000W1 are complete or not, and whether the screws are well tightened.

Please periodically clean the dust inside the KET-3000W1 and check whether the screws are loose or not.

For the KET-3000W1 that has been stored for a long time, it should be powered up every half year to stabilize

capacitors and electronic parts in the KET-3000W1. The powering on time shall be more than half an hour.

For the KET-3000W1 stored for more than 2 years,please use voltage regulator to

increase the input voltage gradually, otherwise, electronic shock or explosion

may occur.

High voltage exists when the KET-3000W1 is powered up or running. Improper

operation may lead to serious human injury.

After the KET-3000W1 is powered off, high voltage still exists inside the

KET-3000W1 for some time (possibly minutes in large KET-3000W1), and it is

extremely dangerous.

Only a trained and qualified professional person can maintain the KET-3000W1.

Maintenance personnel should take off all metal jewellery before carrying out

maintenance or internal measurements in the KET-3000W1. Suitable clothes and

tools must be used, otherwise fatal electric shock may occur. A static strap

should be employed when changing components to prevent staic discharge

component damage..

Please do the following before maintenance and repairing, otherwise, electric

shock may occur:

Please do not touch the main circuit terminals or any parts inside the KET-3000W1

either with bare hands, or with metal tools before doing the following..

Make sure the power input is completely disconnected, and wait for 10 minutes at

least before maintenance.

Open the cover,only after all the indication lamps on the keypad go off.

After the charging lamp inside the KET-3000W1 went off, test the voltage between

terminals (+),(-), make sure the DC voltage is below 36V.

104

7.1 Daily Maintenance

The KET-3000W1 must be operated in the environment specified in the Section 2.1. Besides, some unexpected

accidents may occur during operation. You should maintain the KET-3000W1 conditions according to the table below,

record the operation data, and investigate problems immediately.

Table 7-1 Daily checking items

Items Instructions

Criteria Items Cycle Checking

Operating

environment

Temperature

and

humidity

anytime

Thermometer

and

hydrometer

-10℃~+50℃,

derating at 50℃~60℃

Dust and water

dripping

Visual

inspection No water dripping

Gas Visual

inspection No strange smell

KET-3000W1

Oscillation and

heating anytime

Touch the case

Feel the fan air

discharge temp

Stable oscillation and proper

temperature

Noise Listen No abnormal sound

motor Heating

anytime

Touch the

motor No overheating

Noise Listen Low and regular noise

Operating

status

parameters

Output current

anytime

Current meter Within rated range

Output voltage Volt-meter Within rated range

7.2 Periodical Maintenance

Customer should check the KET-3000W1 every 3 months or 6 months according to the actual environment so as to

avoid hidden problems and make sure the KET-3000W1 runs well for long time..

Only trained personnel can dismantle the KET-3000W1 to replace or repair

components

Don't leave metal parts like screws or pads inside the KET-3000W1, otherwise

the equipment may be damaged

Please do not make modification on the inside of KET-3000W1 without instruction

from the supplier, otherwise the KET-3000W1 may be damaged.


105

There are IC components inside the KET-3000W1, which are sensitive to static

electricity. Direct touch to the components on the PCB board is forbidden,

otherwise, the KET-3000W1 could be damaged.

General Inspection:

1. Check whether the screws of control terminals are loose. If so, tighten them with a screw driver:

2. Check whether the main circuit terminals are properly connected, whether the mains cables are over heated.

3. Check whether the power cables and control cables are damaged, check especially for any wear on the cable

tube:

4. Check whether the insulating tapes around the cable lugs are stripped, and for signs of overheating near

terminations:

5. Clean the dust on PCBs and air ducts with a vacuum cleaner:

6. For KET-3000W1 that have been stored for a long time, they must be powered up every 2 years. When supplying

ACpower to the KET-3000W1, use a voltage regulator to raise the input voltage to rated input voltage gradually.

The KET-3000W1 should be powered for 5 hours prior to loading.

7. Before performing insulation tests, all main circuit input/output terminals should be short-circuited with conductors.

Then proceed with insulation tests to the ground. Insulation test of single main circuit terminals to ground are

forbidden, otherwise the KET-3000W1 might be damaged. Please use a 500V Mega-Ohm-Meter. Please see Fig

7-1 for reference.

Fig. 7-1 KET-3000W1 insulation test diagram.

If insulation test to the motor is necessary, it should be done after the motor’s input terminal U,V,W have been

detached from the KET-3000W1. Otherwise,the KET-3000W1 will be damaged.

Note: Dielectric strength test of the KET-3000W1 has already been conducted in the factory. Do not do the test again,

otherwise, the internal components might be damaged.

7.3 Replacing Damaged Parts

The components that are easily damaged are: cooling fan and electrolytic capacitors of filters. Their lifetime depends

largely on their application environment and preservation. Normally, lifetime is as below:

Life of wearing parts

Name of parts Life

Cooling fan 60,000 hours

Capacitors 50,000 hours

106

The users can decide the time when the components should be replaced according to their service time.

Cooling fan

Possible cause of damages: Wear & Tear of the bearing, aging of the fan vanes

Criteria: After the KET-3000W1 is switched off, check if abnormal conditions such as crack exists on fan vanes and

other parts. When the KET-3000W1 is switched on, check if KET-3000W1 running is normal, and check if there is

any abnormal oscillation.

Electrolytic capacitors

Possible cause of damages: High ambient temperature, aging of electrolyte and large pulse current induced by rapid

changing loads

Criteria: Check if frequent over-current or over-voltage failures occur during KET-3000W1 start-up with load. Check if

there is any leakage of liquids. Check if the safety valve protrudes. Measure static capacitance and insulation

resistance.

7.4 Storage

The following points must be followed for the temporary and long-term storage of KET-3000W1:

Store in locations free of high temperature, humidity, dust, metal powder, and with good ventilation. Please find table

7-3 for reference.

Table 7-3 The conditions of storage

Environment Requirement description

Ambient

temperature

-20℃~60℃

The temperate for long time storage shall be less

than 40 ℃ so that the performance of the

capacitors will not deteriorate

Do not put the KET-3000W1 in the environment

where there is condensation or freeze caused by

temperature shock

Humidity 20~90%

The KET-3000W1 can be packed by plastic film or

store the KET-3000W1 with silica jel.

Storage

environment

No direct sunlight, no dust, no

corrosive or inflammable gas, no

oil, no steam, no water drops, no

big oscillation, no salt.

Long-term storage will cause the deterioration of electrolytic capacitors. Therefore, the KET-3000W1 must be

switched on for a test within half year at least for half hour. The input voltage must be boosted gradually by the

voltage regulator to the rated value. It is enough to run the KET-3000W1 without load.

Chapter 8 Accessories Selection

107


8.1Braking Accessories

For the KET-3000W1, 45KW or below has built-in braking chopper. When brake function is needed, the user only

needs to buy an external brake resistor.

For KET-3000W1 of 55KW or above, external braking chopper and brake resistor are both needed.

8.1.1Model No. of Braking Chopper:

Table 8-1 Model no. of braking unit

Model no. Allowed max. momentary current(A)

RBD-140 140

RBD-280 280

8.1.2SelectionCriteria of Braking Unit and Braking Unit Resistor

The selection of brake resistor is related to the motor, the motor’s load, the system’s inertia and the working

mechanism(such as potential load). Please use the right resistor according to the actual situation.

Please refer to Table 8-2.

Generally speaking, the bigger the inertia of the system is, or the shorter the deceleration time is, or the more times

the system needs braking, the higher the power of the resistor shall be, and the lower the resistance shall be.

During braking operation, the energy created by the system is dissipated by the brake chopper in the brake resistor.

Table 8-2 Recommended selection of braking unit and brake resistor

KET-3000W1

model no.

capacity(KW) Model no. of braking

unit

Specification of resistor

0R2S2 0.25 Inbuilt

100W 200 ohm

0R4S2 0.37 Inbuilt

100W 200 ohm

0R7S2 0.75 Inbuilt

200W 150 ohm

1R5S2 1.5 Inbuilt

400W 100 ohm

2R2S2 2.2 Inbuilt

500W 70 ohm

0R4T4 0.37 Inbuilt

400W 300 ohm

0R7T4 0.75 Inbuilt

400W 300 ohm

108

KET-3000W1

model no.


unit


1R5T4 1.5 Inbuilt

400W 300 ohm

2R2T4 2.2 Inbuilt

500W 200 ohm

3R7T4 3.7 Inbuilt

500W 200 ohm

5R5T4 5.5 Inbuilt

1650W 89 ohm

7R5T4 7.5 Inbuilt

2250W 65 ohm

011T4 11 Inbuilt

3300W 43 ohm

015T4 15 Inbuilt

4500W 32 ohm

018T4 18.5 Inbuilt

5550W 26 ohm

022T4 22 Inbuilt

6600W 22 ohm

030T4 30 Inbuilt

9000W 16 ohm

037T4 37 Inbuilt

11100W 13 ohm

045T4 45 Inbuilt

13500W 10 ohm

055T4 55 RBD-140

16500W 9 ohm

075T4 75 RBD-140

22500W 6.5 ohm

090T4 90 RBD-140

4500 W×2 8 ohm×2

110T4 110 RBD-140

5500 W×2 8 ohm×2

132T4 132 RBD-280

6500 W×2 8 ohm×2

160T4 160 RBD-280

16000W 2.5 ohm

200T4 200 RBD-280

20000W 2.5 ohm

220T4 220 RBD-280

22000W 2.5 ohm

250T4 250 RBD-280

2 pcs in parallel

connection

12500W×2 2.5 ohm×2

280T4 280 14000W×2 2.5 ohm×2


109

KET-3000W1

model no.


unit


315T4 315 16000W×2 2.5 ohm×2

355T4 355 17000W×2 2.5 ohm×2

400T4 400 14000W×3 2.5 ohm×3

Note: “×2” or “×3” means 2 or 3 braking units connected with resistor work in parallel connection.

8.1.3Dimension of Braking Chopper

Fig.8-1 Dimension of braking chopper

Table 8-3 Table of braking chopper of 400V

Specification W W1 W2 H H1 H2 D d fig

RDB-140T4 340 320 300 220 217 140 220 7 1

RDB-280T4 440 420 394 240 233 180 280 10 2

110

8.1.4 Wiring of External Braking Chopper and Function Description

Fig 8-2 The connection diagram for braking unit and resistor

The connecting wire between braking unit and KET-3000W1 or between braking unit and resistor shall be less than 5

meters, and should be insulated to at least 750 volt DC rating, thermally rated for any expected heat, and screened

for EMC.

Please find details in manual of RDB.

8.2 AC Choke and DC Choke.

8.2.1 AC Input Choke

The purpose of installing an AC Input Choke is to, dramatically reduce the harmonics on the input side at the high

voltage point of common coupling, increase the Input Power Factor and prevent input current unbalance which can

be caused by the phase-to-phase unbalance of the power supply. An AC Line Choke also reduces external line

voltage spikes (from for example lightning) which will help protect the input Rectifiers.

8.2.2 AC Output Choke

Normally KET-3000W1 outputs contain substantial higher order harmonic voltages. When the distance between

KET-3000W1 and motor is great, these harmonics can create resonance and destroy the motor’s insulation (first

turn winding failures). As substantial distributed capacitance exits in the motor’s cable, over time the motor winding

insulation will deteriorate, and high frequency harmonic resonance in the cable can damage the KET-3000W1, and

cause KET-3000W1 trips. Generally speaking, when the length of the cable between KET-3000W1 and motor is

more than 100m, the user should consider installing an AC output choke.

8.2.3 DC Choke

The installation of a DC choke can increase the input power factor, improve the KET-3000W1’s overall efficiency and

thermal stability, substantially eliminate the higher order harnomics influence on the mains, and considerably


111

decrease the conducted and radiated electromagnetic emmissions from the KET-3000W1. For 90KW and above

models, the KET-3000W1 has external DC choke as standard.

8.3 Windows PC Software for monitoring and control

8.4 Keypad connecting cable

8.5 Keypad installation seat

Please refer to Appendix 2.

112

Appendix 1 Technical Specification

Item Specification

Rated voltage and

frequency

Single/ 3 phase 200V～240V 50Hz/60Hz:

3 phase 380V～440V 50Hz/60Hz

Allowed fluctuation

value

Voltage fluctuation is within ±10%:

Voltage imbalance rate<3%:

Frequency fluctuation is within ±5%

Output voltage Three phase: 0～220V; 3 phase: 0～380V

Output frequency 0～400.0Hz

Overload 150% of rated current for 2 minutes 180% of rated current for 10s

Control mode Sensorless vector control: V/F control..

Run command source Keypad:terminal: host PC via serial port, etc

Speed source Keypad:analog reference: serial port, etc

Speed source

precision

Digital source: ±0.01%( 10℃～ 40℃):

Analog source: ±0.05%(25℃±10℃)

Speed source

resolution

Digital source: 0.01Hz:

Analog source: 1/2000 of max. frequency

speed control precision Sensorless vector control: ±0.5%(25℃±10℃)

Speed control range Sensorless vector control:1: 100

Torque control

response Sensorless vector control: < 200ms

Starting torque Sensorless vector control: 180% of rated torque/0.5Hz

Torque control

precision ±5%

Reference voltage

supply output 1 port +10V/5mA

Control voltage supply

output 24V/200mA:

Analog input 2 ports AI1 voltage 0～10V

AI2 voltage/current 0～10V /0～20mA DC

Analog meter output 2 ports 0～10V/0～20mA DC current&voltage for option

Run command input 2 ports FWD: forward operation:REV: reverse operation

Appendix 1 Technical Specification

113

Item Specification

Programmable contact

input

X1～X8 indicate 8 ports of programmable digital signal input

terminals. X7 and X8 can receive high speed pulse signal(3.7KW

or below models only have 5 ports, X1～X5 so X4 and X5 are

high speed input ports)

DO frequency signal

output 1 port high frequency signal output(programmable)

Open-collector output Y1 and Y2, 2 ports totally. (3.7KW or below models only have

one port, Y1)

Programmable relay

output 1 port RA/RB/RC capacity of contact: 250V AC /3A or 30V DC /1A

Serial port RS-485 port, 485+ 485-

4-digit LED display

It displays reference frequency, output frequency, output voltage,

output current,motor speed, output torque, switching value terminal,

fault code, etc.

Indication lamp Unit of parameter, status of RUN/STOP, Chargingindicatior

Ambient temperature

-10℃～+40℃ air temperature fluctuation is less than0.5℃/Min:

An KET-3000W1 with increased capacity shall be used for

environment temperature of 40℃ or above. The derating value of

the output current of the KET-3000W1 shall be 2% for each degree

centigrade above 40℃. Max. allowed temperature is 50℃

Humidity Less than 95%RH, non-condensing

Oscillation Less than 5.9 m/S2(0.6g)

Storage temperature -40℃～+70℃

Enclosure IP20

Cooling mode Forced air cooling (0.4KW or below model is of natural cooling

mode)

114

Appendix 2 External Dimensions & Installation Dimensions

Fig. 1 Fig.2

Fig. 3


115

Fig.4 Fig.5

The unit of size in the table is mm and that of weight is kg.

Wall-mounted type:

Model:

W W1 W2 H H1 H2 D D1 D2 D3 d Fig Gross

weight

0R2S2 96 86 / 160 149 / 114.5 123.1 56 / 5 1 1

0R4S2 96 86 / 160 149 / 114.5 123.1 56 / 5 1 1

0R7S2 105 95 / 185 174 / 139 147.6 81.4 / 5 1 2

1R5S2 105 95 / 185 174 / 139 147.6 81.4 / 5 1 2

2R2S2 115 105 / 220 209 / 154 162.5 81.4 / 5 1 2.2

0R4T4 105 95 / 185 174 / 139 147.6 81.4 / 5 1 2

0R7T4 105 95 / 185 174 / 139 147.6 81.4 / 5 1 2

1R5T4 105 95 / 185 174 / 139 147.6 81.4 / 5 1 2

2R2T4 115 105 / 220 209 / 154 162.5 81.4 / 5 1 2.2

3R7T4 115 105 / 220 209 / 154 162.5 81.4 / 5 1 2.2

5R5T4 215 190 / 320 295 / 155 163 103 / 7 2 5

7R5T4 215 190 / 320 295 / 155 163 103 / 7 2 5

011T4 250 225 / 320 295 / 175 183 123 / 7 2 6.5

015T4 250 225 / 320 295 / 175 183 123 / 7 2 6.5

018T4 310 200 / 500 485 465 230 240 170 / 7.5 3 20

022T4 310 200 / 500 485 465 230 240 170 / 7.5 3 20

030T4 355 240 / 600 580 553 250 260.5 184 / 10 3 29

037T4 355 240 / 600 580 553 250 260.5 184 / 10 3 29

116

Model:


weight

045T4 355 240 / 600 580 553 250 260.5 184 / 10 3 29

055T4 430 300 / 680 655 629 290 300.5 233.5 232 12 4 48

075T4 430 300 / 680 655 629 290 300.5 233.5 232 12 4 48

090T4 475 350 / 754 729 703 290 300.5 233.5 232 12 4 66

110T4 475 350 / 754 729 703 290 300.5 233.5 232 12 4 66

132T4 530 350 / 880 850 819 330 340.5 256 276 14 4 91

160T4 530 350 / 880 850 819 330 340.5 256 276 14 4 91

200T4 680 500 / 1000 975 940 350 360.5 258.5 270 14 4 121

220T4 680 500 / 1000 975 940 350 360.5 258.5 270 14 4 121

250T4 680 500 / 1000 975 940 350 360.5 258.5 270 14 4 121

Cabinet type:

Model:


weight

132T4 530 420 / 1110 / / 330 340.5 250 / 18 5 98

160T4 530 420 / 1110 / / 330 340.5 250 / 18 5 98

200T4 680 600 / 1230 / / 350 360.5 270 / 18 5 130

220T4 680 600 / 1230 / / 350 360.5 270 / 18 5 130

250T4 680 600 / 1230 / / 350 360.5 270 / 18 5 130

Keypad installation and dimension


117

Keypad of 5.5KW or above model

Keypad of 3.7KW or below

118

Appendix 3 Efficiency at nominal Load

Model No. Efficiency %

0R2S2 87.2

0R4S2 91.0

0R7S2 94.1

1R5S2 94.6

2R2S2 95.0

0R4T4 94.8

0R7T4 95.0

1R5T4 95.3

2R2T4 95.5

3R7T4 96.8

5R5T4 96.3

7R5T4 96.9

011T4 97.5

015T4 97.9

018T4 97.4

022T4 97.8

030T4 97.7

037T4 98.1

045T4 98.1

055T4 97.6

075T4 97.8

090T4 98.0

110T4 98.0

132T4 98.1

160T4 98.1

200T4 98.3

220T4 98.3

250T4 98.3

Appendix 3 Parameter

119


Note:

“ ”denotes that the setting of this parameter can be modified when the KET-3000W1 is either in stopor run

status:

“ ”denotes that the setting of this parameter cannot be modified when the KET-3000W1 is in run status:

“*”denotes that the value of this parameter is the actual measured value, and cannot be modified:

“●”denotes that this parameter is a manufacturer parameter. User cannot modify it:

“Q” denotes the shortcut menu.

“P” denotes that full menu.

“×” denotes this parameter cannot be modified in the memu.

“√” denotes this parameter can be modified in the memu.

120

P0 Group: Protection of Parameters

Parameter Name Setting range Unit Factory

default

Mod

ifica

tion

Menu

mode

Q P

P0.00 User’s

password

0: no password

other: password

0 0

√ √

P0.01

Menu mode

selection

0: Shortcut menu mode:

Only shortcut menu is displayed.

1: Full menu model:

All parameters are displayed

2: Checking menu mode:

Only the parameters which have

different value from factory settings

are displayed.

0

1

√

√

P0.02

Parameters

initialization

0:No operation

1:Clear fault memory (PF.23~PF.29)

2: Restore to factory setting

1

0

×

√

P1 Group: Basic Operating Parameters


default

Mod

ifica

tion

Menu

mode

Q P

P1.00 Control mode 0: V/F control

1: Sensorless vector control

1 0

√ √

P1.01 Max.output

frequency

50.00~400.00Hz 0.01

Hz

50.00H

z

√ √

P1.02 Upper limit of

frequency

Lower limit of frequency P1.03~ Max.

frequency P1.01

0.01

Hz

50.00H

z

√ √

P1.03 Lower limit of

frequency

0.0~upper limit of frequency P1.02 0.01

Hz

0.00Hz

√ √

P1.04

Frequency

reference

source

selection

0: Kepad, adjust the value via ,

1: Terminals, adjust the value via

UP/DN

2: Digital communication input via

serial port



5: Pulse terminal

6: keypad potentimeter

7: Ditigal input for multi-step speed

8: Process closed-loop PI operation

9: PLC operation

1

0

×

√


121



default

Mod

ifica

tion

Menu

mode

Q P

P1.05

Digital

frequenc

y control

Unit’s place:

0: Frequency reference will be saved

upon power outage.

1: Frequency reference will not be

saved upon power outage.

Ten’s place:

0: Frequency reference will not be

restored to P1.06 at stop.

1:Frequency reference will be

restored to P1.06 at stop..

Note :Valid only when F1.06=0,1, 2

1

00

×

√

P1.06

Starting

frequency

reference

Lower limit of frequency(P1.03) ~

upper limit of frequency (P1.02)

Note: valid only when P1.04=0,1,2

0.0

1Hz

50.00H

z

√

√

P1.07 Run

command

source

selection

0: Keypad control:

1: Terminal control:

2: Serial port control.

1

0

√

√

P1.08

Function

ofSTOP

0: TheSTOP key is active only in the

keypad control mode. The

KET-3000W1 stops as per the

setting of P6.01 by pressingthe

STOP key.

1: The STOP key is active in the

keypad control, terminal control and

serial port control mode. The

KET-3000W1 stops as per the

setting of P6.01 by pressing the

STOP key.

2: In the keypad control mode, the

KET-3000W1 will stop as per the

setting of P6.01 by pressing the

STOP key: while in the terminal

control or serial port control mode,

the KET-3000W1 will coast to stop

and display terminal fault when

pressing the STOP key.

1

0

×

√

122

P1.09 JOG

function

selection

0: FWD/REV switch

1: JOG (JOG operation via kepad)

1 1

√ √

P1.10 Operation

direction

selection

0: Same as the run command

1: Opposite to the run command

1 0

√ √



default

Mod

ifica

tion

Menu

mode

Q P

P1.11 Anti-reverse

operation

0: Reverse operation is permitted:

1: Reverse operation is prohibited

1 0

× √

P1.12

Dead time of

direction

switch

0.0~3600.0s

0.1s

0.0s

×

√

P1.13

Carrier

frequency

0.2KW~22KW: 1k~16kHz

30KW~45KW: 1k~12kHz

55KW~90KW: 1k~6kHz

110KW~400KW: 1k~4kHz

1kH

z

8kHz

6kHz

4kHz

2Hz

√

√

P2 Group: Frequency Reference Parameters

Paramet

ers Name Setting range Unit

Factory

default

mod

ifica

tion

Menu

mode

Q P

P2.00

Frequency

reference

curve

selection

Unit’s place:

AI1 frequency characteristic curve

selection

0: Curve 1

1: Curve 2

Ten’s place:

AI2 frequency characteristic curve

selection

0: Curve 1

1: Curve 2

Hundred’s place:

Potentiometer frequency reference

characteristics curve selection:

0: Curve 1

1: Curve 2

Thousand’s place:

Pulse frequency characteristics

curve selection:

0: Curve1

1: Curve2

1 0000 √ √


123

0000~1111

P2.01

Analog

reference gain

0.00~9.99

0.01

1.00

√

√

P2.02

Analog

reference bias

-50%~50%

Max. output frequency is100%

1%

0

√

√


Paramet

er Name Setting range Unit

Factory

default

Mod

ifica

tion

Menu

mode

Q P

P2.03 Analog

reference

filtering

constant

0.01~50.00s 0.01

s

0.50s

√ √

P2.04 Max. input

pulse

frequency

0.1k~50.0k

0.1k 10.0k

√ √

P2.05

Minimum

reference of

Curve 1

0.0%~P2.07

(Ratio between Min reference 1 and

base value of 10V/20mA/P1.03)

0.1

%

0.0%

√

√

P2.06 Frequency

corresponding

to “P2.05”

0.00~P1.02 0.01

Hz

0.00Hz

√ √

P2.07

Max. reference

of Curve 1

P2.05~100.0%

(Ratio between Max reference 1 and

base

value of 10V/20mA/P1.03)

0.1

%

100.0%

√

√

P2.08 Frequency

corresponding

to “P2.07”

0.00~P1.02 0.01

Hz

50.00H

z

√ √

P2.09 Min. reference

of Curve 2

0.0%~P2.11

(Ratio between Min reference 2 and


0.1

%

0.0%

√ √

P2.10 Frequency

corresponding

to “P2.09”

0.00~P1.02 0.01

Hz

0.00Hz

√ √

P2.11

Max.reference

of Curve 2

P2.09~100.0%

(Ratio between Max reference 2 and


0.1

%

100.0%

√

√

P2.12 Frequency

correspondi-ng

to “P2.11”

0.00~P1.02 0.01

Hz

50.00H

z

√ √

P2.13 Jog operating

frequency

0.10~Min{50.00Hz P1.02(upper limit 0.01

Hz

5.00Hz

√ √

124

of frequency)}

P2.14 Interval of jog

operation

0.0~100.0s 0.1s 0.0s

× √



default

Mod

ificat

ion

Menu

mode

Q P

P2.15 Multi-step

frequency 0

P1.03(the lower limit of

frequency)~P1.02( the upper limit of

frequency)

0.01

Hz

0.00Hz

× √

P2.16 multi-step

frequency 1

0.01

Hz

3.00Hz

× √

P2.17 multi-step

frequency 2

0.01

Hz

6.00Hz

× √

P2.18 multi-step

frequency 3

0.01

Hz

9.00Hz

× √

P2.19 multi-step

frequency 4

0.01

Hz

12.00H

z

× √

P2.20 multi-step

frequency 5

0.01

Hz

15.00H

z

× √

P2.21 multi-step

frequency 6

0.01

Hz

18.00H

z

× √

P2.22 multi-step

frequency 7

0.01

Hz

21.00H

z

× √

P2.23 multi-step

frequency 8

0.01

Hz

24.00H

z

× √

P2.24 multi-step

frequency 9

0.01

Hz

27.00H

z

× √

P2.25 multi-step

frequency 10

0.01

Hz

30.00H

z

× √

P2.26 multi-step

frequency 11

0.01

Hz

33.00H

z

× √

P2.27 multi-step

frequency 12

0.01

Hz

36.00H

z

× √

P2.28 multi-step

frequency 13

0.01

Hz

39.00H

z

× √

P2.29 multi-step

frequency14

0.01

Hz

42.00H

z

× √

P2.30 multi-step

frequency15

0.01

Hz

45.00H

z

× √

P2.31 Skip

frequency1

0.0~400.00Hz 0.01

Hz

0.00Hz

× √

P2.32 Range of skip

frequency 1

0.0~30.00Hz 0.01

Hz

0.00Hz

× √


125

P2.33 Skip

frequency 2

0.0~400.00Hz 0.01

Hz

0.00Hz

× √

P2.34 Range of skip

frequency 2

0.0~30.00Hz 0.01

Hz

0.00Hz

× √



default

Mod

ifica

tion

Menu

mode

Q P

P2.35 Skip

frequency 3

0.0~400.00Hz 0.01

Hz

0.00Hz

× √

P2.36 Rangeof skip

frequency 3

0.0~30.00Hz 0.01

Hz

0.00Hz

× √

P3 Group: Motor Parameters

Parameters Name Setting range Unit Factory

default

mod

ifica

tion

Menu

mode

Q P

P3.00 Motor’s rated

power 0.4~999.9KW

0.1

KW

Depen

dent on

KET-30

00W1

type

√ √


voltage 0~9999V 1V

Depen

dent on

KET-30

00W1

type

√ √


current

Above 3.7KW:

0.1~4000A(large power)

0.1

A

Depen

dent on

KET-30

00W1

type

√ √

3.7KW or below:

0.01~99.99A(small power)

0.01

A

Depen

dent on

KET-30

00W1

type

√ √

126


frequency 10.00~400.00Hz

0.01

Hz

50.00H

z √ √


speed 1~24000rpm

1rp

m

1440rp

m √ √

P3.05 Parameter

autotuning

0: no action

1: act(when motor is idle)

2: act(when motor is running)

1 0 × √



default

mod

ifica

tion

Menu

mode

Q P

P3.06 Stator

resistance

Above 3.7KW:

0.000~9.999Ω

0.00

1Ω

Depen

dent on

KET-30

00W1

type

× √

3.7KW or below:

0.00~99.99Ω

0.01

Ω

Depen

dent on

KET-30

00W1

type

× √

P3.07 Stator

inductance

Above 3.7KW:

0.0~999.9mH

0.1

mH

Depen

dent on

KET-30

00W1

type

× √

3.7KW or below:

0~9999 mH

1m

H

Depen

dent on

KET-30

00W1

type

× √

P3.08 Rotor

resistance

Above 3.7KW:

0.000~9.999Ω

0.00

1Ω

Depen

dent on

KET-30

00W1

type

× √


127

3.7KW or below:

0.00~99.99Ω

0.01

Ω

Depen

dent on

KET-30

00W1

type

× √

P3.09 Rotor

inductance

Above 3.7KW:

0.0~999.9mH

0.1

mH

Depen

dent on

KET-30

00W1

type

× √

3.7KW or below:

0~9999 mH

1m

H

Depen

dent on

KET-30

00W1

type

× √



default

mod

ifica

tion

Menu

mode

Q P

P3.10 Mutual

inductance

Above 3.7KW:

0.0~999.9mH

0.1m

H

Dependent

on

KET-3000

W1 type

× √

3.7KW or below:

0~9999 mH 1mH

Dependent

on

KET-3000

W1 type

× √

P3.11 Exciting

current I0

Above 3.7KW:

0.1~4000A 0.1A

Dependent

on

KET-3000

W1 type

√ √

3.7KW or below:

0.01~99.99A 0.01A

Dependent

on

KET-3000

W1 type

√ √

P3.12

Motor overload

protection

mode selection

0: No action

1: Standard motor(with low

speed compensation)

2: KET-3000W1-fed motor

(without low speed

1

1

×

√

128

compensation)

P3.13 Motor overload

protection

coefficient

20.0~110.0% 0.1% 100.0%

× √

P4 Goup: Vector Control Parameters


default

Mod

ifica

tion

Menu

mode

Q P

P4.00 ASR1-P 0~2000 1 500

√ √

P4.01 ASR1-I 0~2000 1 500

√ √

P4.02 ASR2-P 0~2000 1 500

√ √

P4.03 ASR2-I 0~2000 1 500

√ √

P4.04 Switching

frequency 1

0.00~50.00Hz 0.01Hz 5.00Hz

√ √

P4.05 Switching

frequency 2

0.00~50.00Hz 0.01Hz 10.00Hz

√ √

P4.06 Torque

limitation

0.0%~200.0%(motor rated

current)

0.1% 180.0%

√ √

P4.07 ASR output

filter

0~5 1 2

× √

P4 Goup: Vector Control Parameters


default

Mod

ifica

tion

Menu

mode

Q P

P4.08 ACR-P 0~2000 1 500

× √

P4.09 ACR-I 0~2000 1 500

× √

P4.10 ACR output filter 0~5 1 2

× √

P5 Group: V/F Control Parameters


default

Mod

ifica

tion

Menu

mode

Q P

P5.00

V/F curve

0: A straight line

1: A square curve with lower

torque characteristics

1

0

×

√


129

selection 2: V/F curvedepends on the user

(defined by P5.01~P5.06 )

P5.01 V/Ffrequency

value F3

P5.03~P3.03 0.01

Hz

40.00

Hz

× √

P5.02 V/F voltage

value V3

P5.04~100.0% 0.1

%

80.0%

× √

P5.03 V/F frequency

value F2

P5.05~P5.01 0.01

Hz

25.00

Hz

× √

P5.04 V/F voltage

value V2

P5.06~P5.02 0.1

%

60%

× √

P5.05 V/F frequency

value F1

0.0~P5.03 0.01

Hz

10.00

Hz

× √

P5.06 V/F voltage

value V1

0~P5.04 0.1

%

20.0%

× √

P5.07 Torque boost 0.0:(automatic)

0.1%~30.0%

0.1

%

2.0%

× √

P5.08 Cut-off point

used for

manual torque

boost

0.1~50.0%(of the motor’s rated

frequency P3.03)

0.1

%

10.0%

× √

P5.09 Slip

compensation

gain

50.0%~150.0% 0.1

%

100.0

%

× √

P5.10 Slip

compensation

limit

0.0%~250.0% 0.1

%

200.0

%

× √

P5 Group: V/F Control Parameters


default

Mod

ifica

tion

Menu

mode

Q P

P5.11 Compensati-

on constant

0.1~25.0s 0.1s 2.0s

× √

P5.12 Auto

energy-savin

-g function

0: Disabled

1: Enabled

1 0

× √

P5.13 AVR function 0: Disabled

1: Enabled all the time

2: Disabled in deceleration process

1 2

× √

P5.14 Oscillation-

suppression

coefficient

0~200 1 Depen

dent on

KET-30

00W1

type

× √

0: Oscillation-suppression Mode 1

130

P5.15

Oscillation-

suppression

mode

Oscillation suppression is dependent

on the motor’s exciting current

component.

1: Oscillation-suppression Mode 2

Oscillation suppression is

dependent on the motor’s torque

current component.

1

0

×

√

P6 Group: RUN / STOP Control Parameters


default

Mod

ifica

tion

Menu

mode

Q P

P6.00

Start mode

0: Start at the starting frequency

1: Brake first and then start at the

starting frequency

2: Start after speed tracking(including

direction identification):

Start at the starting frequency when

speed is zero

Note: Starting process includes

switching on the KET-3000W1 for

the first time, AC supply recover after

power failure,reset upon external fault

and restart after coast-to-stop.

1

0

×

√

P6.01

Stop mode

0: Decelerate to stop

1: Coast to stop

2: Decelerate to stopwith DC braking

1

0

×

√

P6.02 Starting

frequency

0.00~60.00Hz 0.01

Hz

0.50Hz

× √

P6.03 Retention

time of

starting

frequency

0.0~10.0s 0.1s 0.0s

× √

P6.04 DC braking

current at

start

0.0~150.0% 0.1

%

0.0%

× √

P6.05 DC braking

time at start

0.0(no DC braking)

0.1~60.0s

0.1s 0.0s

× √

P6.06 Reference

current for

speed

search

0.0~200.0% of motor’s rated current 0.1

%

100.0

%

× √

P6.07 Frequency

decrease

rate of

1.0~30.0Hz/s 0.1

Hz/s

10.0Hz

/s

× √


131

speed

search

P6.08 V/F ratio of

speed

search

0.0~100.0%

Motor’s rated voltage /motor’s rated

frequency

0.1

%

100.0

%

× √

P6.09 DC braking

initial

frequency

while

stopping

0.0~60.00Hz 0.01

Hz

0.00Hz

× √

P6.10 DC braking

waiting time

while

stopping

0.0~10.0s 0.1s 0.0s

× √

P6.11 DC braking

current

while

stopping

0.0~150.0% 0.1

%

0.0%

× √

P6.12 DC braking

time while

stopping

0.0(not act)

0.1~60.0s

0.1s 0.0s

× √

P6.13 Dynamic

braking

selection

0: Dynamic braking is disabled.

1: Dynamic braking is enabled.

1 0

× √

P7 Group: Acceleration/Deceleration Parameters


default

Mod

ifica

tion

Menu

mode

Q P

P7.00 Acc./dec.

mode

selection

0: Linear acceleration/deceleration

1: S curve acceleration/ deceleration

1 0

× √

P7.01 Starting

stage time of

S Curve

10.0%~50.0%(acce/dece time)

P7.01+ P7.02≤90%

0.1

%

20.0%

× √

P7.02 Rising stage

time of S

Curve

10.0%~70.0%(Acc./Dec. time)

P7.01+ P7.02≤90%

0.1

%

60.0%

× √

P7.03 Acceleration

time 1

0.1

10.0s

√ √

P7.04 Deceleration

time 1

√ √

P7.05 Acceleration

time 2

× √

132

P7.06 Deceleration

time 2

0.1~3600.0s

× √

P7.07 Acceleration

time 3

× √

P7.08 Deceleration

time 3

× √

P7.09 Acceleration

time 4

× √

P7.10 Deceleration

time 4

× √

P7.11 Acceleration

time of jog

operation

0.1~3600.0s

0.1 10.0s

× √

P7.12 Deceleration

time of jog

operation

× √

P7.13 Speed

increment

via UP

terminal

0.01~99.99Hz/s

0.01

Hz/s

1.00Hz

/s

√ √

P7.14 Speed

decrement

via DOWN

terminal

0.01~99.99Hz/s

0.01

Hz/s

1.00Hz

/s

√ √

P8 Group: Simple PLC Parameters


default

Mod

ifica

tion

Menu

mode

Q P

P8.00

Simple PLC

operation mode

selection

Unit’s place:

PLC operation mode selection

0:Stop after single cycle

operation:

1: Maintain the final value after

single cycle of PLC

operation:

2: Cycle operation

Ten’s place: PLC operation

restart mode selection after

pause

0: From Sstep 1

1: Continue to operate from the

1

000

×

√


133

step where the KET-3000W1

pauses

2: Continue to operate at the

frequency when the

KET-3000W1 pauses.

Hundred’s place:

Save the PLC status after

power failure 0: not save

0: Not save

1: save

000~122

P8.01 Setting of Step 1 Unit’s place:

0: Forward operation

1: Reverse operation

2: Dependent onrun command

Ten’s place:

0: Acc/Dec time 1

1: Acc/Dec time 2

2: Acc/Dec time 3

3: Acc/Dec time 4

Hundred’s place:

0: The timing unit of PLC

operation is second.

1: The timing unit of PLC

operation is hour.

000~132

1 000

× √

P8.03 Setting of Step 2 1 000

× √


× √


× √


× √


× √


× √


× √


× √


× √


× √


× √


× √


× √


× √

134

P8 Group: Simple PLC Parameters


default

Mod

ifica

tion

Menu

mode

Q P

P8.02 Runtime of Step 1

0.0~6500.0s

0.1s 5.0

× √

P8.04 Runtime of Step 2 0.1s 0.0

× √


× √


× √


× √


× √


× √


× √


× √


× √


× √


× √


× √


× √


× √

P9 Group: Process Closed-loop Control Parameters


default

Mod

ifica

tion

Menu

mode

Q P

P9.00 Reference source

selection

0:Digital reference

(It is the value of P9.04 when

P9.01 0~5: while it is the

1 1 × √


135

value of P9.05when P9.01 6).

1: AI1 analog reference(0~10V):

2: AI2 analog reference:

3: Potentiometer reference:

Note: For speed closed loop,

analog reference of 10V(keypad

input 5V) or max. input pulse

frequency P2.04 corresponds to

the synchronous speed of the

max.frequency P1.01.

P9.01 Feedback

channelselection

0: AI1 0~10V

1: AI2

2: AI1+AI2

3: AI1-AI2

4: Min{AI1 AI2}

5: Max{AI1 AI2}

6: Pulse

1 1 × √



default

Mod

ifica

tion

Menu

mode

Q P

P9.02

Reference

filtering time

constant

0.01~50.00s 0.01

s 0.50s × √

P9.03

Feedback

filtering time

constant

0.01~50.00s 0.01

s 0.50s × √

P9.04

Setting of

digital

reference

0.00V~10.00V 0.01 0.00 × √

P9.05

Closed-loop

speed

reference

0~39000rpm 1 0 × √

P9.06

Number of

pulse per

revolution of

pulse

encoder

1~9999 1 1024 × √

136

P9.07 Min.

reference

0.0%~(P9.09) (ratio of min.reference to

the base value 10V or 20mA: while

with the source ofkeypad

potentiometer, it is the ratio of min.

reference to the base value 5V.

0.1

% 0.0 × √

P9.08

Feedback

value

correspondi

ng to Min.

reference

0.0~100.0%(the ratio of feedback

value to base value 10,20mA.)

0.1

% 20.0% × √

P9.09 Max.

reference

(P9.07)~100.0%(ratio of max.

reference to base value 10V,20mA:

while with the source ofkeypad

potentiometer, it is the ratio of max.

reference to base value 5V.

0.1

%

100.0

% × √

P9.10 Feedback

value

correspondi

ng to max.

reference

0.0~100%(the ratio of max. reference

feedback value to vase value

10V,20mA)

0.1

%

100.0

%

× √

P9.11 Proportional

gain KP

0.000~9.999 0.00

1

0.050

× √

P9.12 Integral

constant Ki

0.000~9.999 0.00

1

0.050

× √



default

Mod

ifica

tion

Menu

mode

Q P

P9.13 Sampling

cycle T 0.01~50.00s

0.01

s 0.50s × √

P9.14 Deviation

limit

0.0~20.0%(corresponding to

closed-loop reference)

0.1

% 2.0% × √

P9.15

Closed-loop

control

characteristic

0: Positive

1: Negative

Note: It indicates the relationship

between reference and speed.

1 0 × √

P9.16i

Integeral

regulation

selection

0: Stop integral regulation when the

frequency reaches the upper or

lower limit.

1: Continue the integral regulation

when the frequency reaches the

upper or lower limit.

1 0 × √


137

PA Group: Wobble Operating Parameters


default

Mod

ifica

tion

Menu

mode

Q P

PA.00 Wobble operation

selection

0: Disabled

1: Enabled 1 0 × √


mode

Unit’s place: Start mode

0: Auto start(according to

PA.03)

1: Manual start

Ten’s place:

Wobble operation amplitude

0: Relative to the wobble

central frequency

1: Relative to the maximum

frequency

Hundred’s place: Restart mode

0: The KET-3000W1 restarts

the wobble operation as per

the recorded frequency and

direction when it stops last

time.

1: The KET-3000W1 restarts

the wobble operation from

0Hz.

Thousand’s place:

Save the wobble operation

parameters upon power outage.

0: Save

1: Not save

0000~1111

1 0000 × √

PA.02 Preset wobble

frequency

0.00Hz~400.00Hz 0.01

Hz

0.00Hz

× √

PA.03 Hold time of preset

wobble frequency

0.0~3600.0s 0.1s 0.0s

× √

PA.04 Wobble amplitude 0.0~50.0% 0.1

%

0.0%

× √

PA.05 Jump frequency 0.0~50.0%(with reference to

PA.04)

0.1

%

0.0%

× √


cycle

0.1~999.9s 0.1s 10.0s

× √

138

PA.07 Rising time of

triangle wave

0.0~100.0%(with reference to

wobble operation cycle)

0.1

%

50.0%

× √

Group Pb: I/O Terminal Function Parameters

Paramet

er Name Setting range

U

ni

t

Factory

default

Mod

ifica

tion

Menu

mode

Q P

Pb.00

Input

terminal

X1

function

selection

0: Reserved

1: Multi-step frequency terminal 1




5: External reset(RESET)input

6: Acceleration/deceleration prohibition



9: External pause signal(normally-open

input)

10: External pause signal(normally-closed

input)

11:Coast- to- stop normally-open input

12: Coast-to-stop normally-closed input

13:Frequency ramp (UP)

14: Frequency ramp (DOWN)

15: Clearing the counter signal

16: Pausing PLC operation.

17: External fault normally-open input

18: External fault normally-closed input.

19: Frequency reference source selection 1

20: Frequency reference sourceselection2



23: AI2 to be the frequence source

24: Run command sourceselection 1.

25: Run command sourceselection 2.

26: Terminal control mode to be the run

command source

27: Accelereation/Deceleration mode

selection

28: Closed-loop operation pause

29: Forward jog (JOGF)

30: Reverse jog(JOGR)

31: 3-wire operation control

32: Switching to wobble operation

1

0

√

√

Pb.01

Input

terminal X2

function

selection

1

0

√

√

Pb.02

Input

terminal X3

function

selection

1

0

√

√

Pb.03

Input

terminal X4

function

selection

1

0

√

√

Pb.04 Input

terminal X5

function

selection

1 0

√ √

Pb.05

Input

terminal X6

function

selection

(3.7KW or

below has

no this

terminal)

1

0

√

√

Pb.06

Input

terminal X7

function

selection

(3.7KW or

below has

no this

terminal)

1

0

√

√

33: Reset of wobble operation status


139

Pb.07

Input

terminal X8

function

selection

(3.7KW or

below has

no this

terminal)

34: External stop command

35:Disabling the KET-3000W1’s operation

36: Clearing auxiliary frequency reference

37: Reset the stop status of PLC operation

38: Inputting triggering signal to counter

39: Pulse frequency input

40: Single-pulse speed measuring input

41: Speed measuring input SM1(set only X7

for KET-3000W1 with 5.5KW or above

set only X4 for KET-3000W1 with 3.7KW

or below.)

42: Speed measuring input SM2(set only

X7, X8 for KET-3000W1 of 5.5KW or

above., set only X5 for KET-3000W1 of

3.7KW or below.)

1

0

√

√

Pb.08

FWD/REV

operation

mode

0: 2-wire operation mode 1.

1: 2-wire operation mode 2.

2: 3-wire operation mode1 _self-holding

function(any terminal between X1~X8

3: 3-wire operation mode 2 _ self-holding

function(any terminal between X1~X8.

1

0

√

√

Pb.09 Terminal

filtering

time

2~100ms 1 10

× √



default

Mod

ificat

ion

Menu

mode

Q P

Pb.10 Open-coll

ector

output

terminal

Y1

0: Reserved

1: KET-3000W1’s running signal(RUN)

2: Frequency arriving signal(FAR)

3: Zero-speed runing

4: Overload detection signal(OL)

5: Undervoltage lock-up signal (LU)

6: KET-3000W1 fault

7: Frequency detection threshold(FDT1)

8: Frequency detection threshold(FDT2)

9: PLC operating status indication

10: PLC cycle completion indication

11: Completion of PLC operation stages

12: Completion of PLC operation

1 1

√ √

Pb.11 Open-coll

ector

output

terinal Y2

1 2

√ √

140

Pb.12

Relay

output

function

selection

13: PLC pausing indication

14: Preset counting value reach

15: Reference length arriving indication

16: KET-3000W1 ready (RDY)

17: Stop due to external fault (EXT)

18: Limitation of upper limit of frequency

(FHL)

19: Limitation of lower limit of frequency

(FLL)

20: Limitation of upper/lower limits of

wobble frequency 21: preset operating

time arrives

21: Preset operating time out

22: Output from series port

communication

1

6

√

√

Pb.13 Reserved

Pb.14 Reserved

Pb.15 FAR

range

0.0~400.00Hz 0.01

Hz

2.50Hz

× √

Pb.16 FDT1

level

0.00~400.00Hz 0.01

Hz

50.00H

z

× √

Pb.17 FDT1 lag 0.00~400.00Hz 0.01

Hz

1.00Hz

× √

Pb.18 FDT2

level

0.00~400.00Hz 0.01

Hz

25.00H

z

× √

Pb.19 FDT2 lag 0.00~400.00Hz 0.01

Hz

1.00Hz

× √



default

Mod

ificat

ion

Menu

mode

Q P

Pb.20 Preset operating

time

0.0~168.0 hours 0. 1

hours

0

× √

Pb.21 Preset counting

value arriving

Pb.22~9999 1 0

× √

Pb.22 Specified

counting value

arrives to

reference value

0~Pb.21 1 0

× √

Positive logic: enabled when the

multi-function terminal, FWD,


141

Pb.23

Terminal’s

positive and

negative logic

selection

REW are connected

withcorresponding

commonterminals: and disabled

when disconnected:

Negative logic:disabled when

the multi-function terminal, FWD,

REW are disconnected with

corresponding common

terminals: and enabled when

disconnected:

Unit’s place:

BIT0~BIT3: X1~X4

Ten’s place:

BIT4~BIT7: X5~X8

Hundred’s place:

BIT8~BIT9: FWD,REV

BIT10~BIT11: Y1,Y2

Thousand’s place:

BIT12: RA/RB/RC

1

000

×

√

Pb.24 Output function

selection of

terminal AO1

0: Output frequency

(0~Maximum output frequency)

1: Frequency reference

(0~Maximum output frequency)

2: Output current: (0~twice of

KET-3000W1’s rated current)

3: Output current (0~twice of

motor’s rated current)

4: Output torque (0~twice of

motor’s rated torque)

5: Output voltage (0~1.2 times of

KET-3000W1’s rated voltage)

6: Bus voltage (0~800V)

7: AI1 (0~10V)

8: AI2 (0~10V/0~20mA)

9: Output power (0~twice of

rated power)

10: Potentiometer analog

reference (0~5V)

1 0

√ √

142



default

Mod

ificat

ion

Menu

mode

Q P

Pb.25 Output function

selection of

terminal AO2

1 3

√ √

Pb.26

Output function

selection of

terminal DO

1

0

√

√

Pb.27 Analog output

AO1 bias

0~10.0V 0.1V 0V

× √

Pb.28 Analog output

AO2 bias

0~10.0V 0.1V 0V

× √

Pb.29 AO1 output gain 0.0~200.0% 0.1% 100.0%

× √

Pb.30 AO2 output gain 0.0~200.0% 0.1% 100.0%

× √

Pb.31 Maximum output

pulse frequency

of DO

0.1~50.0(max. 50kHz) 0.1kH

z

10.0k

× √

PC Group: Display Control Parameters


default

Mod

ifica

tion

Menu

mode

Q P

PC.00

Display

parameter

selection 1

during operation

In binary system:

0: No display

1: Display

Unit’s place:

BIT0: output frequency(Hz)

BIT1: frequency setting(Hz

flashes)

BIT2: output current(A)

BIT3: operation speed(r/min)

Ten’s place:

BIT0: speed setting(r/min)

BIT1: operating line-speed(m/s)

BIT2: linear speed setting(m/s)

BIT3: output power supply

1

3FF

√

√


143

Hundred’s place:

BIT0: output torque(%)

BIT1: output voltage(V)

0x000~0x3FF

Note: when all the bits are 0,the

default display is output

frequency

PC.01

Display

parameter

selection 2

during operation

In binary system:

0: not displayed:1: display

LED units:

BIT0: bus voltage

BIT1: AI1(V)

BIT2: AI2(V)

BIT3: input voltage via keypad

potentiometer

LED tens:

BIT0: analog closed-loop

feedback(%)


setting(%)

BIT2: external counting value(no

unit)

BIT3: terminal status(no unit)

0x00~0xFF

1

00

√

√



default

Mod

ifica

tion

Menu

mode

Q P

PC.02

Display

parameters

selection at stop

In binary system:

0: No display:

1: Display

Unit’s place:

BIT0: frequency setting(Hz)

BIT1: speed setting(r/min)

BIT2: linear speed setting(m/s)

BIT3: DC bus voltage

Ten’s place:

BIT0: AI1(V)

BIT1: AI2(V)

BIT2: input voltage via keypad

potentiometer


feedback(%)

Hundred’s place:


1

7FF

√

√

144

setting(%)

BIT1: external counting

value(no unit)

BIT2: terminal status(no unit)

0x000~0x7FF

note: when all bits are 0, the

default display is frequency

setting

PC.03

Rotating speed

display

coefficient

0.1~999.9%

Mechanical rotating speed=

Actual rotating speed×PC.03

(PG)

Mechanical rotating speed = 120

× operating frequency/pole-pairs

of motor × PC.03 non PG

speed reference=closed-loop

speed reference×PC.03(PG)

speed reference=120×frequency

reference/number of motor’s

polarities×PC.03(non PG)

note: no influence on actual

speed.

0.1%

100.0%

√

√



default

Mod

ifica

tion

Menu

mode

Q P

PC.04

Linear speed

coefficient

0.1~999.9%

Linear speed=operating

frequency×PC.04(non PG)

Linear speed=spinning

speed×PC.04(PG)

Linear speed

reference=frequency

reference×PC.04(non PG)

Linear speed reference=speed

reference×PC.04(PG)

Note: There’s no influence on

actual speed

0.1%

100.0

%

√

√

PC.05

Closed-loop

analog display

0.1~999.9%

Note:Closed-loop analog

reference/feedback display

0.1%

100.0

%

√

√


145

coefficient

range:0~999.9

PC.06 Total operation

time

0~max. counting time (65535

hours)

1hou

r

0 * √ √

PC.07 Total power-on

time

0~ max. counting time (65535

hours)

1hou

r

0 * √ √

PC.08 Total operation

time of current

operation

0.0~168.0 hour

(The value will automatically

return to 0 upon power outage)

0.1h

our

0 * √ √

PC.09 Total power-on

time of current

operation

0.0~168.0 hour

(The value will automatically

return to 0 upon power outage)

0.1h

our

0 * √ √

PC.10 DSP software

version

0100~9999 1 * × √

PC.11 MCU software

version

0100~9999 1 * × √

PC.12 configuration

code

0000~9999 1 * × √

Pd Group: Function-boost Paramters


default

Mod

ifica

tion

Menu

mode

Q P

Pd.00

Auxiliary

frequency

reference

source selection

0: No auxiliary reference

frequecnty:

1: Digital reference 1 adjust via

(set by Pd.02:

2: Digital reference 2 adjust via

UP/DN(set by Pd.02):

3: Digital reference 3 via serial

port(by Pd.02):

4: AI1 analog input 1:

5: AI2 analog input 2:

6: Pulse terminal:

1

0

×

√

146

7: Keypadpotentiomenter

8: AI1-5:

9: AI2-5:

10: Pulse frequency-0.5×P1.03

Note:The auxiliary source

reference is disabled when it is

same as the maste source

reference.

Pd.01

Auxiliary analog

reference

frequency

coefficient

0.00~9.99(only for Pd.00=4~10)

0.01

1.00

×

√

Pd.02

Initial auxiliary

digital

reference

frequency

0.00~400.00Hz

0.01

0.00Hz

×

√



default

Mod

ifica

tion

Menu

mode

Q P

Pd.03

Auxiliary digital

reference

frequency

control

Unit’s place:

Save selection at power loss(only

effective when Pd.00=1,2,3)

0: Save auxiliary frequency at

power loss

1: Not save auxiliary frequency at

power loss

Ten’s place: Frequency disposal

when the KET-3000W1 stops

0: Maintain the auxiliary frequency

when the KET-3000W1 stops

1: The auxiliary frequency returns

to Pd.02 when the KET-3000W1

stops

Hundred’s place:

Polarity of frequency(effective only

when Pd.00=1,2,3,4,5,6)

0: Positive

1: Negative

1

000

×

√


147

Pd.04

Multi-step

frequency

adjustment

selection

0: No function

1: Percentage of P1.01

2: Percentage of present frequency

1

0

×

√

Pd.05

Adjustment

coefficient of

multi-step

frequency

0.0%~200.0%

0.1

%

100.0%

×

√

Pd.06

Cooling fan

Control

0: Auto operation mode

1: Immediately stop

2: The fan runs continuously when

power on.

1

0

×

√

Pd.07 Droop control 0.0~10.00Hz 0.01

Hz

0.00Hz

× √

Pd.08 Overshoot

enabling

0: Disabled

1: Enabled

1 1

× √

Pd.09

Zero-frequency

operation

threshold

0.00~400.00Hz

0.01

Hz

0.00Hz

×

√

Pd.10

Zero-frequency

Hysteresis

0.00~400.00Hz

0.01

Hz

0.00Hz

×

√



default

Mod

ifica

tion

Menu

mode

Q P

Pd.11 Trip-free selection at


0: Disabled

1: Enabled

1 0

× √

Pd.12 Freq. decrease rate at

voltage compensation

0.0~99.99Hz/s 0.01

Hz/s

10.00H

z/s

× √

Pd.13

Voltage rise diagnosis

time of trip-free operation

at momentary power loss

0.00s~100.00s

0.01

s

0.50s

×

√

Pd.14 Reference voltage of

trip-free operation at


60.0%~100.0% 0.1

%

80.0%

× √

Pd.15 Restart after power failure 0: Disabled

1: Enabled

1 0

× √

Pd.16 Delay time for restart after

power failure

0.0~10.0s 0.1s 0.5s

× √

148

PE Group: Communication Parameters


default

Mod

ifica

tion

Menu

mode

Q P

PE.00

Communication

configuration

Unit’s place: Baud rate selection

0: 1200bps

1: 2400bps

2: 4800bps

3: 9600bps

4: 19200bps

5: 38400bps

Ten’s place: Data format

0: 1-8-2 format, no parity, RTU

1: 1-8-1format, even parity,

RTU

2: 1-8-1 format, odd parity, RTU

3: 1-7-2 format, no parity, ASCII

4: 1-7-1 format, even parity,

ASCII

5: 1-7-1 format,odd parity,

ASCII

1

04

×

√

PE.01 Local address 0~247:0 is the broadcasting

address

1 5

× √

PE.02 Time threshold

for judging

communication

status

0.0~1000s 0.1 0.0s

× √

PE.03 Host PC

response delay

0~1000ms 1 5ms

× √

PF Group: KET-3000W1 and Motor Protection Parameters


default

Mod

ifica

tion

Menu

mode

Q P

PF.00

Protection of

overvoltage at

stall

0:Disabled (when braking resistor

is mounted)

1: Enabled

1

1

×

√

PF.01 Over voltage

point

at stall

120.0~150.0%Udce

0.1

%

130.0%

×

√

Unit’s place:

0:Detect all the time


149

PF.02

Overload

detection

1:Detect only at constant speed

running

Ten’s place: alarm selection

0: KET-3000W1 will not alarm,

and continue to operate

1: KET-3000W1 alarms and stops

Hundred’s place: selection of

detected value

0: % of rated current of

motor(fault display:motor

overload)

1: % of rated current of

KET-3000W1 (fault display:

KET-3000W1 overload)

000~111

1

000

×

√

PF.03

Overload

pre-alarm

detection

threshold

20.0%~200.0%

0.1

%

130.0%

×

√

PF.04 Overload

detection time

0.0~60.0s 0.1s 5.0s

× √

PF.05 Auto current

limiting threshold

20.0%~200.0% 0.1

%

150.0%

× √

PF.06

Freq. decrease

rate at current

limiting

0.00~99.99Hz/s

0.01

Hz/s

10.00H

z/s

×

√

PF.07

Auto current

limiting selection

0: Invalid

1: Valid during acceleration or

deceleration, invalid at constant

speed

2: Valid during acceleration,

deceleration or constant speed

1

1

×

√



default

Mod

ifica

tion

Menu

mode

Q P

PF.08

Auto reset

times

0~10, 00~10, “0” means no auto

reset function

Note: part of the faults has no reset

function, please see details in

Chapter 5.

1

0

×

√

PF.09 Reset interval 2.0~20.0s/ times 0.1s 5.0s

× √

150

PF.10

Action

selection at

communicati

on fault

0: Alarm and coast to stop

1: Alarm and continue to operate

2: Alarm and stop according to

deceleration time 1

1

1

×

√

PF.11

Faulted

replay action

selection

Bit0: in process of auto reset

0: Fault relay is disabled

1: Fault relay is enabled

Bit1: in process of undervoltage

0: Fault relay is disabled

1: Fault relay is enabled

0~3

1

0

×

√

PF.12

Input phase

loss detection

reference

Voltage reference setting at input

phase loss 100% corresponds to

800V

0~100%

1%

7%

×

√

PF.13

Input phase

loss

detection

time

Detection time setting of input phase

loss

Detection time=1.25s* set value

0~20.0s

0.1s

2.0s

×

√

PF.14

Output phase

loss

detection

reference

Current reference setting of output

phase loss, 100% corresponds to the

rated current of KET-3000W1

0~100%

1%

0

×

√

PF.15

Output phase

loss detection

time

Detection time setting of output

phase loss

0.0~20.0s

0.1s

2.0s

×

√

PF.16

KET-3000W1

output

load-loss

detection

threshold

0~100% of KET-3000W1’s rated

current

1%

0%

×

√

PF.17

KET-3000W1

output

load-loss

detection

time

0.0~60.0s

1

1.0s

×

√



default

Mod

ificat

ion

Menu

mode

Q P

PF.18 Closed-loop reference lose

detected value

0.0~100.0% 1% 0%

× √


151

PF.19 Closed-loop reference loss

detection time

0.0~20.0s 0.1s 1.0s

× √

PF.20 Closed-loop feedback loss

detected value

0.0~100.0% 1% 0%

× √

PF.21 Closed-loop feedback loss

detection time

0.0~20.0s 0.1s 1.0s

× √

PF.22 Fan block detection time 0~10Min 1Min 1Min

× √



default

Mod

ificat

ion

Menu

mode

Q P

PF.23 Type of the

fourth latest

fault

0: No fault

E001: DC bus overvoltage

E002: Hardware overcurrent

E003: Software overcurrent

E004: Braking unit fault

E005: Motor overspeed

E006: Motor parameter self tuning fault

E007: KET-3000W1 overload

E008: Heat sink overheating

E009: Motor overload

E010: KET-3000W1 load loss

E011:External analog voltage/current

reference (including closed-loop

reference) signal disconnection fault

E012: Fault of analog closed -loop

feecback( beyond the limit or

disconnection)

E013: Communication timed out

E014: EEPROM fault

E015: Input phase loss

E016:Outputphase loss or

disconnection

E017: Power module loss

E018: Current detection circuit fault

E019: External equipment fault

E020: Power-on contactor has not

pulled-in

E021: CPU fault

E022: Parameter setting fault

E023: Encoder fault

E024,E025,E026: Reserved

E027: Stall overvoltage

1 0 * √ √

PF.24 Type of the

third latest

fault

1 0 * √ √

PF.25 Type of the

second

latest fault

1 0 * √ √

PF.26

Type of the

latest fault

1

0

*

√

√

152

E028: Fan is blocked

PF.27 DC bus

voltage at

last fault

0~999V 1V 0V * × √

PF.28 Outputcurre

nt at last

fault

0.0~999.9A 0.1

A

0.0A * × √

PF.29 Running

frequency

at last fault

0.00Hz~400.00Hz 0.01

Hz

0.00Hz * × √

Py Group: Manufacturer Parameters


default

Mod

ificat

ion

Menu

mode

Q P

Py.00 Factory password **** ● × √

Appendix 4 Communication Protocol

153


1. Communication Protocol

The KET-3000W1 adopts MODBUS protocol as standard.

2. Scope of Application

This communication protocol is applicable to all the range of the KET-3000W1.

3. Networking Mode

1) Single master and multi-slave:

2) Single master and single slave:

4. Interfaces

RS485 or RS232: asynchronous, semi-duplex

Default: 8-N-2, 19200bps

5. Communication Modes

The KET-3000W1 adopts the MODBUS protocol which is compatible with ordinary read-write registers, and with

added parameter management command.

The KET-3000W1 is a slave in the network. It communicates in ‘point to point’ mode. The KET-3000W1 will not

response to the command sent by the master via broadcast address.

3000W1 3000W1

3000W1

3000W1

3000W1

3000W1 3000W1 3000W1

KET-3000W1 KET-3000W1

154

6. Scaling of KET-3000W1 Transmitting Physical Quantity

1) Scaling of frequency - 1:100

If the frequency of the KET-3000W1 needs to be 40Hz, the host should be set as 0x0FA0 4000 .

2) Scaling of time - 1: 10

If the deceleration time need be set as 60s, the host should be set as 0x0258 600 .

3) Scaling of voltage - 1:1

If the voltage of DC bus is 537V, the display on the host is 0x0219 537 .

4) Scaling of current – 1:10

If the current of the KET-3000W1 is 60A, the display on the host is 0x0258 600 .

5) Scaling of power equals the absolute value of the actual power.

6) For more details, please refer to the KET-3000W1 Instruction Manual.

Note: For P2.02 (reference source bias): the communication range 0~100 corresponds to the function parameter

value -50 ~ +50.

7. Protocol Format

The MODBUS protocol simultaneously supports RTU mode and ASCII mode, with corresponding frame format as

shown below:

MODBUS adopts “Big Endian” encoding mode, higher byte prior to lower byte at sending.

RTU mode: In the RTU mode, the interframe idle time is the bigger one between the functional parameter settings

and internal default of MODBUS.

MODBUS internal default of min. interframe idle time is shown as follows: The idle time of frame head and frame tail

passing bus should be not less than 3.5 bytes, and data checking relies on CRC-16. The whole information need to

be checked. The higher and lower byte of the checksum should interchange before sending. Please refer to the


155

example for more details. Please note, interframe bus idle time should be maintained at least 3.5 bytes, not including

initial idle and terminate idle.

The following is the data frame of reading parameter 002 of No. 1 KET-3000W1:

Address Parameter Register Address Read char no. Checksum

0x01 0x03 0x00 0x02 0x00 0x01 0x25 0xCA

The following is the response frame of the No. 1 KET-3000W1:

Address Parameter Response Byte Content of Register Checksum

0x01 0x03 0x02 0x00 0x00 0Xb8 0x44

In ASCII mode the frame head is “0x3A”, while frame tail default is “0x0D”“0x0A” And frame tail can be set by the

users. In ASCII mode all the data bytes will be sent via ASCII code except frame head and frame tail, higher 4-byte

prior to lower 4-byte at sending. In ASCII mode, data is 7-byte. The data adopts LRC checking, covering the slave

address and data. Checksum is the character of data that is involved in checking and the complement of carry bit.

In ASCII mode, MODBUS data frame is shown as below：

Write 1000 0x3E8 to the internal register 003 of Slave 1, the command frame is shown in the table below:

LRC checking=(0x01+0x06+0x00+0x02+0x0F+0xA0) complement=0x48

Frame

Head Address Parameter Register Address Written Content

LRC

checking

Frame

Tail

character : 0 1 0 6 0 0 0 2 0 F A 0 4 8 CR LF

ASCII 3A 30 31 30 36 30 30 30 32 30 46 41 30 34 38 0D 0A

The users can set different response time delays through parameters to satisfy various application requirements. The

actual response time delay should be not less than 3.5 bytes in RTU mode, and not less than 1ms in ASCII mode.

8. Protocol Function

MODBUS’s main function is to read and write parameters. Different function codes result in different operation

requests as shown below:

Function

Code

Instructions

0x03 To read the KET-3000W1’s function parameters and parameters in operating status

0x06 To rewrite control parameters, and not save at power loss

0x08 Circuit diagnosis

0x41 To rewrite a certain function parameter, and preserve it

0x42 Function parameter management

If the operation command fails, the response is fault code and abnormal code. Fault code is the sum of function

parameter and 0x80. Abnormal code indicates the fault reason. Please refer to the following table for abnormal

codes.

156

Abnormal

Code

Instructions

0x1 Illegal function parameters

0x2 Illegal register address

0x3 Data fault. Data is beyond the upper/lower limit

0x4 Slave operation fails (including fault caused by data invalid)

0x5 Command is valid, in the operation process. It is mainly used to save data to

nonvolatile storages.

0x6 The slave is busy. Try later. It is mainly used to save data tononvolatile storages.

0x18 Incorrect information frame, including incorrect information length and incorrect

checking.

0x20 Parameters cannot be modified.

0x21 Parameters are unchangeable when the KET-3000W1 is in operating status.

0x22 Parameters are protected by password.

The KET-3000W1’s function parameters, control parameters and status parameters are all mapped as MODBUS’s

read-write register. Please refer to the instruction manual for more details on function parameters’ read-write

characteristics and ranges.

The function parameters’ group numbers are mapped as the higher bytes of register address while the intergroup

indexes are mapped as the lower bytes. The control parameters and status parameters are mapped as the function

parameter groups.

Please refer to the details as follows:

P0group ： 0x00:P1group ： 0x01:P2group ： 0x02:P3group ： 0x03:P4group ： 0x04:P5group ： 0x05:P6group ：

0x06:P7group：0x07:P8group：0x08:P9group：0x09:PA group：0x0A

Pb group：0x0B:PC group：0x0C:Pd group：0x0D:PE group：0x0E:PF group：0x0F:Py group：0x23 The manufacturer

parameters cannot be read and written :

The control parameters group: 0x32

The status parameters group: 0x33

E.g.: The register address of function parameter P3.02 is 0x302, and that of function parameter PF.01 is 0x0F01.

(The demonstration below of frame format is in RTU mode. PDU length of application layer in ASCII mode should be

doubled. )

1) To read KET-3000W1 parameters

Command format as shown below：

Protocol date unit Length of data byte

Range

Address 1 0~247 0 is broadcast address


157

Function code 1 0x03

Starting register address 2 0x0000~0xFFFF

No. of registers 2 0x0001

CRC checking / LRC checking 2/1

Answer format as shown below：


Range



Read byte no. 1 2* no. of registers

Read content 2* no. of registers


2 To rewrite a certain function code or control parameter ( but not saved at power loss)



Range



Register address 2 0x0000~0xFFFF

Register content 2 0x0000~0xFFFF




Range






3) Circuit diagnosis



Range


158


Subfunction parameter 2 0x0000~0x0030

Data 2 0x0000~0xFFFF




Range



Subfunction parameter 2 0x0000~0x0030



Subfunctions of circuit diagnosis：

Subfunction

code Data command Data Answer

Subfunction meanings

0x0001 0x0000 0x0000 Reinitialize communication, disabling

no-answer mode

0xFF00 0xFF00 Reinitialize communication, disabling

no-answer mode

0x0003

“New frame tail

and “00” occupy

higher and lower

bytes respectively

“New frame tail

and “00” occupy

higher and lower

bytes respectively

Set ASCII frame tail, and the new frame tail

will replace the old newline characters, but

it will not be retained at power loss. (Note:

new frame tail cannot be larger than 0x7F,

and shouldn’t be 0x3A.)

0x0004 0x0000 No answer After select no-answer mode, the slaves

then only answer to “reinitialize

communication command”. It can tell and

isolate the faulted slaves.

0x0030 0x0000 0x0000 To set slave no-answer invalid command

and fault command

0x0001 0x0001 To set slave answer invalid command and

fault command

4) To rewrite a certain KET-3000W1 parameter (retained)



Range





159





Range






5 Function parameters management

The KET-3000W1 function parameters management includes to read the upper/lower limit of parameters, to read

parameter characteristics, to read the biggest intergroup index of function parameters, to read the previous and next

function parameter group number, to read index of the parameter being displayed and to display next status

parameter. The parameter characteristics include read-write ability, parameter units and scaling. These commands

are used to adjust remotely KET-3000W1 parameters. PDU of application layer is shown below:

Command format：


Range



Subfunction code 2 0x0000~0x0007

Data 2 The range depends on the type no. of the

KET-3000W1.


Answer format：


Range



Subfunction code 2 0x0000~0x0007



On condition that the operation command fails, response is fault code and abnormal code.

Subfunction under function parameter management

160

Subfunction

code Data command Data answer

Instruction

0x0000 The function parameter group

no. and intergroup index

occupy the higher and lower

bytes respectively.

The upper limit of function

parameter

To read the upper

limit of function

parameter




bytes respectively.

The lower limit of function

parameter

To read the lower

limit of function

parameter




bytes respectively.

characteristics of function

parameters (See the following

table for more details)

To read the

characteristic of

function parameters


no. occupies the higher byte,

and the lower byte is “00”.

The max. value of index

To read the max

value of intergroup

index

Note: The status parameters group is unchangeable, and incompatible with operation of reading upper/lower limit.

The function parameter characteristics are 2-byte, with definition shown as below:

Characteristics Bit Value Definition

Bit2~Bit0

000B without decimal fraction

001B 1 decimal fraction



other reserved

Bit3 reserved

Bit5~Bit4 00B To modify the step length to 1

other reserved

Bit7~Bit6

01B changeable

10B Unchangeable in operating status

11B Set by the manufacturer. The users are not allowed to

make any modification.

00B Actual parameters, unchangeable

Bit11~Bit8

0000B Without unit

0001B Unit is HZ

0010B Unit is A

0011B Unit is V

0100B Unit is r/min

0101B Unit is linear speed m/s

0110B Unit is percentage %


161

Characteristics Bit Value Definition

other reserved

Bit12 1 To modify the upper limit as per 4-byte restriction

0 To modify the upper limit as per character restriction

Bit15~Bit13 reserved

The users can realize the KET-3000W1’s starting, stopping and running speed setting through the control

parameter, and obtain the KET-3000W1’s running frequency, output current, etc. through indexing the

KET-3000W1’s status parameters.

KET-3000W1 control parameter index

Register address Parameter name Retained or not at power loss

0x3200 Control command character No

0x3201 Running frequency setting Yes, retained to P1.06 at power loss

0x3202 Virtual terminal control setting No

Virtual terminal control setting：

Bit0：=1 Y1 output is enabled:

=0 Y1 output is disabled:

Bit1：=1 Y2 output is enabled:

=0 Y2 output is disabled:

Bit2：=1 Relay output is enabled:

=0 Relay output is disabled:

Other bits：Reserved

Definition of KET-3000W1 control words：

Control

word Bit

value Definition Function Description

bit0 1 Run command enabled To control the KET-3000W1’s starting and stop

0 Run command disabled

bit1 1 Forward Running direction: have the same function as

terminal FWD/ REV 0 Reverse

bit2 1 Stop mode: deceleration to

stop

Deceleration to stop the KET-3000W1

0

bit3 1 Stop mode:

Coast to stop

Coast to stop the KET-3000W1

0

bit4

1 Stop mode: external fault External fault stop control, the KET-3000W1 will

coast to stop, displaying external fault 0

Bit5~6 0 Reserved

Bit7 1 Fault reset enabled Fault reset control

162

0 Fault reset disabled

Bit8 1 Host control enabled The control word sent by the host is valid

0 Host control disabled The control word sent by the host is invalid

Bit9~15 0 Reserved

KET-3000W1 status parameter index

Register address Parameter name

0x3300 Running status character

0x3301 Model no. of Slave

0x3302 Model no. of KET-3000W1

0x3303 Current running frequency

0x3304 Output current

0x3305 Output voltage

0x3306 Output power

0x3307 Running speed

0x3308 Voltage of DC bus

0x3309 External counter

0x330A Output torque

0x330B Status of I/O terminals BIT0~BIT12：X1~X8 FWD REV Y1 Y2 RC

0x330C Running frequency setting

0x330D Running speed setting

0x330E Closed-loop control reference

0x330F Closed-loop control feedback

0x3310 Running linear speed

0x3311 Linear speed setting

0x3312 AI1

0x3313 AI2

0x3314 Voltage reference of keypad potentiometer

0x3315 Command source

0x3316 Frequency referencesource

0x3317 Current fault code: Display “0” when no fault occurs

0x3318 Manufacturer permissions

0x3319 Manufacturer permissions

0x331A Manufacturer permissions

Definition of status words:

Status character

Bit

Value Definition Remarks

bit0 1 Forward Current running direction

0 Reverse

bit1 1 KET-3000W1 is ready to

run

The KET-3000W1 is able to receive run

command after it is ready to run.


163

Status character

Bit

Value Definition Remarks

0 Non run preperation

bit2 1 Running The status of KET-3000W1

0 Stop

bit3 1 KET-3000W1 fault KET-3000W1 is in fault status

0 KET-3000W1 normal KET-3000W1 is normal

bit4 1 Undervoltage

0 Normal

bit5 1 Jog operation

0 Non jog operation

bit6

1 Closed-loop operation

0 Non closed-loop

operation

bit7

1 Simple PLC operation

0 Non simple PLC

operation

Bit8

1 Multi-step operation

0 Non multi-step operation

bit9 1 Wobble operation

0 Non wobble operation

Bit10

1 Common operation Common operation includes keypad

potentiometer reference operation, terminal

pulse reference operation, AI1 analog

reference operation, AI2 analog reference

operation, communication digital reference

operation, terminal digital reference

operation, keypad digital reference operation

0

Non common operation

Bit11~Bit15 0 Reserved

9. Special instruction

1) For the data frame in ASCII mode, if the frame length is an even number, the frame is abandoned.

2) On condition of default parameter renewing and motor parameter autotuning, the KET-3000W1 cannot

realize communication.

3) The Py group cannot be read and modified through communication. Internal parameters

P0.01,P0.02,P3.00~P3.11,PE.00,PE.01,PE.02,PE.03 cannot be set and adjusted through communication.

P0.00 cannot be set and adjusted through communication as well, but the user can verify the user password

by writing P0.00 and get access to adjust KET-3000W1 function parameters on the host. After adjustment,

the user can close the permission by writing invalid password to P0.00.

10. CRC checking

164

In order to satisfy speed increase needs, CRC-16 normally adopts form mode. The following is CRC-16 C language

channel code. Please note the final result has exchanged the higher and lower bytes. That is the right CRC

checksum to be sent.

unsigned short CRC16 ( unsigned char *msg,

unsigned char length)

/* The function returns the CRC as a unsigned

short type */

{

unsigned char uchCRCHi = 0xFF : /* high byte of CRC initialized */

unsigned char uchCRCLo = 0xFF : /* low byte of CRC initialized */

unsigned uIndex : /* index into CRC lookup table */

While (length--) /* pass through message buffer */

{

uIndex = uchCRCLo ^ *msg++ : /* calculate the CRC */

uchCRCLo = uchCRCHi ^

(crcvalue[uIndex] >>8):

uchCRCHi =crcvalue[uIndex]&0xff:

}

return (uchCRCHi | uchCRCLo<<8) :

}

/* Table of CRC values */

const unsigned int crcvalue[ ] = {

0x0000,0xC1C0,0x81C1,0x4001,0x01C3,0xC003,0x8002,0x41C2,0x01C6,0xC006,0x8007,0x41C7,

0x0005,0xC1C5,0x81C4,0x4004,0x01CC,0xC00C,0x800D,0x41CD,0x000F,0xC1CF,0x81CE,0x400

E,

0x000A,0xC1CA,0x81CB,0x400B,0x01C9,0xC009,0x8008,0x41C8,0x01D8,0xC018,0x8019,0x41D9

,

0x001B,0xC1DB,0x81DA,0x401A,0x001E,0xC1DE,0x81DF,0x401F,0x01DD,0xC01D,0x801C,0x41

DC,

0x0014,0xC1D4,0x81D5,0x4015,0x01D7,0xC017,0x8016,0x41D6,0x01D2,0xC012,0x8013,0x41D3,

0x0011,0xC1D1,0x81D0,0x4010,0x01F0,0xC030,0x8031,0x41F1,0x0033,0xC1F3,0x81F2,0x4032,

0x0036,0xC1F6,0x81F7,0x4037,0x01F5,0xC035,0x8034,0x41F4,0x003C,0xC1FC,0x81FD,0x403D,

0x01FF,0xC03F,0x803E,0x41FE,0x01FA,0xC03A,0x803B,0x41FB,0x0039,0xC1F9,0x81F8,0x4038,

0x0028,0xC1E8,0x81E9,0x4029,0x01EB,0xC02B,0x802A,0x41EA,0x01EE,0xC02E,0x802F,0x41EF

,

0x002D,0xC1ED,0x81EC,0x402C,0x01E4,0xC024,0x8025,0x41E5,0x0027,0xC1E7,0x81E6,0x4026

,

0x0022,0xC1E2,0x81E3,0x4023,0x01E1,0xC021,0x8020,0x41E0,0x01A0,0xC060,0x8061,0x41A1,

0x0063,0xC1A3,0x81A2,0x4062,0x0066,0xC1A6,0x81A7,0x4067,0x01A5,0xC065,0x8064,0x41A4,

0x006C,0xC1AC,0x81AD,0x406D,0x01AF,0xC06F,0x806E,0x41AE,0x01AA,0xC06A,0x806B,0x41A

B,

0x0069,0xC1A9,0x81A8,0x4068,0x0078,0xC1B8,0x81B9,0x4079,0x01BB,0xC07B,0x807A,0x41BA,


165

0x01BE,0xC07E,0x807F,0x41BF,0x007D,0xC1BD,0x81BC,0x407C,0x01B4,0xC074,0x8075,0x41B

5,

0x0077,0xC1B7,0x81B6,0x4076,0x0072,0xC1B2,0x81B3,0x4073,0x01B1,0xC071,0x8070,0x41B0,

0x0050,0xC190,0x8191,0x4051,0x0193,0xC053,0x8052,0x4192,0x0196,0xC056,0x8057,0x4197,

0x0055,0xC195,0x8194,0x4054,0x019C,0xC05C,0x805D,0x419D,0x005F,0xC19F,0x819E,0x405E,

0x005A,0xC19A,0x819B,0x405B,0x0199,0xC059,0x8058,0x4198,0x0188,0xC048,0x8049,0x4189,

0x004B,0xC18B,0x818A,0x404A,0x004E,0xC18E,0x818F,0x404F,0x018D,0xC04D,0x804C,0x418C

,

0x0044,0xC184,0x8185,0x4045,0x0187,0xC047,0x8046,0x4186,0x0182,0xC042,0x8043,0x4183,

0x0041,0xC181,0x8180,0x4040}

It takes a comparatively long time to online calculate the CRC checksum of each byte, but it will save program space.

Code of online calculating CRC is shown below:

unsigned int crc_check(unsigned char *data,unsigned char length)

{

int i:

unsigned crc_result=0xffff:

while(length--)

{

crc_result^=*data++:

for(i=0:i<8:i++)

{

if(crc_result&0x01)

crc_result=(crc_result>>1)^0xa001:

else

crc_result=crc_result>>1:

}

}

return (crc_result=((crc_result&0xff)<<8)|(crc_result>>8)):

}

11. Application case

Remarks: Please verify all the hardware equipments are connected well before controlling the KET-3000W1 via

communication. In addition, please preset the communication data format, baud rate and communication address.

(1) To read the max. output frequency of Slave 5 to read the command frame of P1.01)

Address Parameter Register address Word no. of read Checksum

0x05 0x03 0x01 0x01 0x00 0x01 0xD5 0xB2

Corresponding answer frame P1.01=50.00

Address Parameter Answer byte Register content Checksum

166

0x05 0x03 0x02 0x13 0x88 0x44 0xd2

(2) To read the voltage of Slave 5’s DC bus (to read status parameter)

Address Parameter Register address Char no. of read Checksum

0x05 0x03 0x33 0x08 0x00 0x01 0x0B 0x08

Corresponding answer frame (the voltage of DC bus is 307V)

Address Parameter Register address Char no. of read Checksum

0x05 0x03 0x02 0x01 0x33 0x44 0xd2

(3) To write the max. output frequency of Slave 5 set P1.01 to 55.00

Address Parameters Register address Register content Checksum

0x05 0x06 0x01 0x01 0x15 0x7C 0x99 0xA4

Corresponding answer frame


0x05 0x06 0x01 0x01 0x15 0x7C 0x99 0xA4

(4) Forward operation of Slave 5


0x05 0x06 0x32 0x00 0x01 0x03 0xC7 0x67



0x05 0x06 0x32 0x00 0x01 0x03 0xC7 0x67

(5) Deceleration to stop command of Slave 5


0x05 0x06 0x32 0x00 0x01 0x04 0x86 0xA5



0x05 0x06 0x32 0x00 0x01 0x04 0x86 0xA5

(6) External fault stop control of Slave 5 via communication (E019 has fault)


0x05 0x06 0x32 0x00 0x01 0x10 0x86 0xAA



0x05 0x06 0x32 0x00 0x01 0x10 0x86 0xAA

(7) Fault reset of Slave 5


0x05 0x06 0x32 0x00 0x01 0x80 0x86 0xC6



0x05 0x06 0x32 0x00 0x01 0x80 0x86 0x C6

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Komal Electrotech Pvt. Ltd.I-24, Madhupura Market, Nr. Police Commissioner Office,

Shahibaug, Ahmedabad - 380 004, Gujarat, India.M : +91 968 768 9987/8/9 Email: [email protected]

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