GEARLESS PERMANENT MAGNET SYNCHRONOUS MOTOR Operation …˜EVODOV… · GEARLESS PERMANENT MAGNET...

GEARLESS PERMANENT MAGNETSYNCHRONOUS MOTOR

Operation and Maintenance Manual

SMT 200AC

SMT SERIES

SMT 140AC

SMT 200AC

SMT 225

SMT 140AC

SMT 225

1. General Information

1.1.SMT Series Motors

1.2.Structure of Operation and Maintenance Manual

1.3.User

1.4.Copyright

2. Safety Instructions

2.1.General

2.2.Technical Personnel Responsibility

2.3.Signs and Symbols Used in the Manual

2.4.Primary Safety Instructions

3. Condition of Product

3.1.Motor Dimensions and Weights

3.1.1. SMT 140AC-10/15/20

3.1.2. SMT 200AC-15/17/20

3.1.3. SMT 225-20/30

3.2.Operational Area

3.3.Transport and Handling

3.4.Intermediate Storage

4. Mechanical Installation

4.1.Mechanical Safety Precautions

4.2.Motor Mounting

4.3. Rope Protection Handle Adjustment

5. Electrical Connection

5.1. Electrical Safety Precautions

5.2. Motor Terminal Connection

5.3. Encoder Connection

4

4

4

5

5

6

6

6

6

7

9

9

9

10

11

12

13

13

14

14

15

16

17

17

17

20

Table of Content

Operation and Maintenance Manual– SMT Series SMT 140AC/ SMT 200AC/ SMT225

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21

23

24

24

24

25

25

26

26

26

26

28

29

30

32

32

32

33

33

36

36

38

39

5.4. Electromagnetic Brake Connection

5.5. Electromagnetic Brake Types and Specifications

6. Start-Up

6.1.Operating Conditions

6.2. Check List

6.3. EN 81-1:1998+A3:2009 Brake Tests

6.3.1. Overload Test

6.3.2. One Brake Failure Test (only for Double Brake)

6.3.3. Micro-Switch Test

6.4. Emergency Operations

6.4.1. Emergency Electrical Operation

6.4.2. Emergency Mechanical Operation (by Brake Releasing)

6.4.3. Power Failure Operation

7. Faults and Remedy

8. Service and Maintenance

8.1. General Information on Maintenance

8.2. Inspections

8.3. Spare Parts

8.3.1. Changing Encoder

9. Enclosure

9.1.Motor Terminal Connection Diagrams

9.2.Electromagnetic Brake Connection Diagram

9.3.Encoder Connection Diagrams

Operation and Maintenance Manual– SMT Series SMT 140AC/ SMT 200AC/ SMT225 Operation and Maintenance Manual– SMT Series SMT 140AC/ SMT 200AC/ SMT225

The SMT Series Motors are designed as gearless drive for rope system

elevators with traction pulley.

No other drive applications are allowed without prior permission of AKAR.

The SMT Series Motors are ideal for both roomless and machine room applications due to its compact design.

Thanks to its direct drive technology, the SMT Series Motors offer maximum travel comfort, minimum noise level, ease of installation and energy saving up to 40%. In addition to that, the SMT Series Motors are environment friendly since no oil is required for operation.

CE certificated AKAR Electromagnetic Disc Brakes provide maximum security and are approved as a safety device for ascending car overspeed protection. Therefore, there is no need to use bi-directional safety gear according to EN 81-1:1998+A3:2009. One-direction operated safety gear is sufficient.

1.1.SMT Series Motors

This manual is designed as a part of the motor and should be kept as a

reference in order to be consulted when it is required. All people entrusted

with the installation, operation, maintenance or repair of the drive must have

read and understood manual completely and must comply with manual at all

times.

AKAR takes no responsibility for damage or disruption caused by disregard of

this manual.

In the interest of technical progress, AKAR reserves the right to make changes

in the drive when it is necessary.

1.2.Structure of Operation and Maintenance Manual

This manual addresses to the people involved in installation, operation,

maintenance and repair services.

1.3.User

1.4.Copyright

The copyright for this manual is held by Akar Asansör Mot. Mak. San. Ltd. Þti. , Istanbul. Information in this manual is subject to change without any prior notice. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose without the express written permission of AKAR.

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1.General Information


The SMT Series Motors are not ready-to-use products for the end users. Prior

to its operation; installation of the system with its necessary safety

components, which may vary depending on the application, have to be

completed. Systems reliability and system performance depend on the correct

and safe installation of each component respectively.

2.1. General

Installation, electric connections, operation, maintenance and repair services

have to be performed by authorized and qualified technical personnel in

conformity with the relevant standard and regulations.

2.2. Technical Personnel Responsibility

2.3. Signs and Symbols Used in the Manual

The following signs and symbols are used throughout the manual in order to

highlight hazardous areas as well as useful information and advice for users.

2. Safety Instructions

DANGER! Severe injury may occur!Hazardous area. Death or severe injury may occurif the stated precautions are not taken.

CAUTION! Material damage may occur!Material damage area. Significant material damagemay occur if the stated precautions are not taken.

DANGER! Electrical shock hazard!Dangerous electrical voltage area. Death or severeinjury may occur if the stated precautions are not taken.

INFORMATION

Additional information for user.

ADVICE

Useful hints and advices for user.

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The motor is only to be used for specific purpose and elevator systems in which

the producer was informed during order placement.

The motor is only to be operated according to the specifications on the

identification label.

2.4. Primary Safety Instructions

The motor has a casted lifting ring. This ring has been designed to carry only the motor with its brake and sheave. Do not load any other components, e.g. ropes, sockets etc., on the motor.

When the motor shaft is turning, voltage will be induced and applied to the motor terminal!

The motor is only to be used with a screened power cable which also contains a grounding conductor. Please make sure that grounding of the screened power cable is performed separately from the grounding connection of the building.

U, V, W phase conductors of power cable should be connected to the connection box terminals in the same order of auto-tuning realization.

The motor does not generate any torque when the motor current is cut off. In this situation, if the brakes are opened, the cabin will accelerate out of control. Thus, it is highly recommended to short-circuit the motor windings during the installation of the elevator system.

This will lead to the speed depending braking torque which is similar to the friction in traction machine-motor system. The short-circuit has to be made by main contacts of the contactors. Short-circuiting of the windings can only be made when the motor wires do not carry any current.

Safety components which are monitoring brake releases, e.g. micro-switches, should not be demounted or deactivated.


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The SMT Series Motors are securely protected against

the motors will be no longer under

warranty.

Encoder connection diagrams for various encoder models are given

in 9.3.Encoder Connection Diagrams. Connections should be made

in accordance with given diagrams.

The motors will be no longer under warranty in case of any

intervene to the red seals on the motors. Please get in contact with

manufacturer if disassembly is required.

Encoder cable should be isolated from the electromagnetic effect

caused by main supply cable. Otherwise, inverter errors and travel

discomfort may occur due to the stray current.

overheating

by the thermistors (PTC) installed into phase windings.

Connections should be made through PTC controller. Max. 2.5 Volt

DC voltages can be applied to PTC. Applying greater voltages may

result in PTC damages and

The brake coils are designed based on the voltage specified on the

brake label. The coils are protected against overvoltage by parallel

connection of varistors.

Connection of brake micro-switches into the connection box is

made through normally open (NO) contacts.

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3.1.Motor Dimensions and Weights

3. Condition of Product

3.1.1. SMT 140AC-10/15/20

Motor TypeA

(mm)B

(mm)C

(mm)D

(mm)

SMT140AC-10

SMT140AC-10

SMT140AC-15

SMT140AC-15

SMT140AC-15

SMT140AC-15

SMT140AC-20

SMT140AC-20

SMT140AC-20

SMT140AC-20

SMT140AC-20

SMT140AC-20

E(mm)

F(mm)

Pulley Dia.-No.of Ropes*Rope Dia.

459

459

509

509

509

509

559

559

574

582

559

559

92,5

109

97,5

109,5

113,5

102,5

124,5

128,5

139,5

143,5

117,5

127,5

64

96

64

88

96

74

88

96

118

125,5

74

94

Ø

Ø240

Ø210

Ø210

Ø240

Ø320

Ø210

Ø240

Ø210

Ø240

Ø320

Ø400

210 130

130

170

170

170

170

200

200

200

200

200

200

82

82

93,5

93,5

93,5

93,5

93,5

93,5

93,5

93,5

93,5

93,5

WEIGHT(kg.)

115

115

130

130

130

140

150

170

170

170

160

170

Ø210 - 4..5 x Ø6,5 (#)

Ø240 - 4 x Ø6,5 (#)

Ø210 - 4..5 x Ø6,5 (#)

Ø210 - 6..7 x Ø6,5 (#)

Ø240 - 4..7 x Ø6,5 (#)

Ø320 - 4 x Ø8

Ø210 - 7 x Ø6,5 (#)

Ø240 - 7 x Ø6,5 (#)

Ø210 - 9 x Ø6,5 (#)

Ø240 - 9 x Ø6,5 (#)

Ø320 - 4 x Ø8

Ø400 - 4 x Ø10

(#) Specially certificated rope

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Motor TypeA

(mm)B

(mm)C

(mm)D

(mm)

SMT200AC-15

SMT200AC-15

SMT200AC-15

SMT200AC-17

SMT200AC-17

SMT200AC-17

SMT200AC-17

SMT200AC-20

SMT200AC-20

SMT200AC-20

SMT200AC-20

SMT200AC-20


656

653

653

656

666

653

653

656

670

653

653

653

142

123

126

142

146

123

126

142

149

123

135,5

126

125,5

89

94

125,5

135,5

89

94

125,5

140

89

114

94

240

320

400

240

240

320

400

240

240

320

320

400

WEIGHT(kg.)

255

260

265

270

280

273

280

285

285

280

285

290

Ø240 - 7..5 x Ø6,5 (#)

Ø320 - 4..6 x Ø8

Ø400 - 4..5 x Ø10

Ø240 - 7..10 x Ø6,5 (#)

Ø240 - 11 x Ø6,5 (#)

Ø320 - 5..6 x Ø8

Ø400 - 5 x Ø10

Ø240 - 10 x Ø6,5 (#)

Ø240 -11..12x Ø6,5 (#)

Ø320 - 5..6 x Ø8

Ø320 - 7 x Ø8

Ø400 - 4..5 x Ø10



3.1.2. SMT 200AC-15/17/20

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Motor TypeA

(mm)B

(mm)C

(mm)D

(mm)

SMT225-20

SMT225-20

SMT225-20

SMT225-20

SMT225-20

SMT225-30

SMT225-30

SMT225-30

SMT225-30

SMT225-30

SMT225-30


810

810

810

810

810

910

910

910

910

910

910

135

135

133

143

133

158

148

133

143

133

133

115

115

112

132

112

162

142

112

132

112

112

Ø320

Ø320

Ø400

Ø400

Ø500

Ø320

Ø320

Ø400

Ø400

Ø500

Ø500

220

220

220

220

220

320

320

320

320

320

320

Ø320 - 7 x Ø8

Ø320 - 8 x Ø8

Ø400 - 5 x Ø10

Ø400 - 7 x Ø10

Ø500 - 5 x Ø12

Ø320 - 11 x Ø8

Ø320 - 9..10 x Ø8

Ø400 - 5..6 x Ø10

Ø400 - 7 x Ø10

Ø500 - 5 x Ø10

Ø500 - 5..6 x Ø12

E(mm)

Ø24

Ø24

Ø24

Ø24

Ø24

Ø30

Ø30

Ø30

Ø30

Ø30

Ø30

F(mm)


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3.1.3. SMT 225-20/30


3.2. Operational Area

The SMT Series Motors are ideal for both roomless and machine room

applications due to its compact design.

Thanks to its direct drive technology, the SMT Series Motors offer maximum

travel comfort, minimum noise level, ease of installation and energy saving up

to 40%. In addition to that, the SMT Series Motors are environment friendly

since no oil is required for operation.

CE certificated AKAR Electromagnetic Disc Brakes provide maximum security

and are approved as a safety device for ascending car overspeed protection.

Therefore, there is no need to use bi-directional safety gear according to EN

81-1:1998+A3:2009. One-direction operated safety gear is sufficient.

Operational area in which the motor is installed into should satisfy the

following conditions,

• The ambient temperature should be between 0 °C - 40 °C.

• Altitude should be less than 1000 meters.

• Humidity should be less than 95%.

• Drive should be installed indoor.

• Be aware of the protection class specified on the identification label.

• Protect against external factors (water, humidity, dust etc.) and from

construction waste.

Please get in contact with manufacturer in case that the

installation conditions differ from the specifications above.

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Akar SMT Series of motors are consigned to the transport company with the

packaging agreed upon.

The motor has a casted lifting ring. This ring has been designed to carry only

the motor with its brake and sheave.

3.3. Transport and Handling

• Transport the motor with its original packaging or by lifting it from

the casted lifting ring.

• Use appropriate lifting equipment by taking into account the

motor weights. Motor weights are given in the tables in 3.1.Motor

Dimensions and Weights.

Do not load any other components, e.g. ropes, sockets etc., on the

motor.

Take into account the center of gravity while lifting.

• Avoid excessive vibration and shock during transport.

Check the packaging for possible loss or damage and inform the

transport company when necessary. Any loss or damages caused

during transportation are not covered by guarantee.

3.4. Intermediate StorageIn the case of intermediate store,

• Store the motors in their original packaging in a dry area.

• Protect against the excessive fluctuations in temperature.

(recommended storage temperature:

• Protect against external factors (water, humidity, dust etc.) and

from construction waste.

• Avoid excessive storage times.

(recommended max. storage time: 1 year)

Before the installation of motor, check the motor bearings by

releasing the brake and rotate the rotor manually. If unusual noise

is observed, please get in contact with manufacturer.

-20 °C until 60 °C)


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4. Mechanical Installation4.1.Mechanical Safety Precautions

Mechanical mounting is only to be performed by authorized and trained personnel.

Conformity of the installation to the standards is the responsibility of the contracting company.

If you have any problems or doubts, please get in contact with Akar for assistance. (Contact info can be found at the back cover of this manual.)

• Before the installation of motor, check the motor for possible

damages occurred during transportation.

The motor has a casted lifting ring. This ring has been designed to

carry only the motor with its brake and sheave. Do not load any

other components, e.g. ropes, sockets etc., on the motor.

•

Spare at least 150 mm (axial direction) between the brake and the

shaft wall in order to enable the encoder reachable.

the brakes and the motor will be

no longer under warranty.

please get in contact with

manufacturer

Please do not apply any force on the motor, brakes or pulleys!

•The motor and especially brakes should be covered and protected

against water, humidity, dust, construction waste etc.

•The air-flow around the motor should not be blocked in any

manner. Any violation may result in overheating of motor.

The SMT Series motors are supplied with factory-mounted

electromagnetic brakes on. Brake adjustments are done by Akar.

There is no need for any adjustment. Please do not try to make any

further adjustments! Otherwise,

An exchange of the brake can only be carried out by assistance of

Akar. If brake exchange is required,

.

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Please do not apply any welding operation on the motors!

Magnets and bearings may be damaged. In any violation, the

motors will be no longer under warranty.

In case of any interference in the motor, brake and its accessories,

the motors will be no longer under warranty.

4.2. Motor Mounting

a. SMT 140AC-10/15/20 type motors have to be fixed with 4

screws M16 (class 8.8) to the mounting plate. (Apply 195Nm

torque)

b. SMT 200AC-15/17/20 and SMT 225-20 type motors have to be

fixed with 4 screws M20 (class 8.8) to the mounting plate.

(Apply 395Nm torque)

c. SMT 225-30 motor has to be fixed with 4 screws M24 (class 8.8)

to the mounting plate. (Apply 680Nm torque)

d. Tighten the connection screws diagonally by applying the

same force on each screw.

e. Recommended mounting surface roughness Ra 3.2 ~ 4 µm

f. Mounting surface should be durable and rigid in order to resist

the forces applied on it.

g. Rubber buffers should be used to absorb vibration.

The SMT Series motors have mounting holes at the base of the motor body.

Figure 1_ Sample Maunting of the Motor

1. Machine Room System 2. Machine Roomless System

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• The rope protection handles are fixed to the front cover of the

motor.

• The rope protection handles can be adjusted depending on the

installation direction of the motor.

• There should be 3 mm distance between the rope and rope

protection handles.

4.3. Rope Protection Handle Adjustment

The SMT Series motors rope

protection handles on.

are supplied with two factory-mounted

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Electrical connections are only to be done by authorized and trained

personnel.

Conformity of the installation to the standards is the responsibility of the

contracting company.

If you have any problems or doubts, please get in contact with Akar for

assistance. (Contact info can be found at the back cover of this manual.)

Before the installation of motor, check the cables for possible damages

occurred during transportation.


5. Electrical Connection


The motor should not be connected directly to main supply withoutan inverter!

5.2. Motor Terminal ConnectionThe SMT Series motors require an inverter and an encoder to operate.

• Carry out the motor terminal connections in accordance with the

enclosed circuit diagrams (Figure 2 and Figure 3).

• U, V, W phase conductors of power cable should be connected to

the connection box terminals in the same order of auto-tuning

realization and should not be changed. Otherwise, the motor can

accelerate out of control.

• Make sure that grounding connection of the building is

successfully performed.

• The motor is only to be used with a screened power cable which

also contains a grounding conductor. Please make sure that

grounding of the screened power cable is performed separately

from the grounding connection of the building.

• Unless the otherwise specified, the encoder offset should be set

to 0. In order to do that, connect the DC voltage with U phase to (+)

and V and W phases to (-).

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The SMT Series Motors are securely protected against

the motors will be no longer under warranty.

overheating

by the thermistors (PTC) installed into phase windings. Connections

should be made through PTC controller. Max. 2.5 Volt DC voltages

can be applied to PTC. Applying greater voltages may result in PTC

damages and

Figure 2 – SMT 140AC Motor Terminal Connection Diagram

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Figure 3 - SMT 200AC/ SMT225 Motor Terminal Connection Diagram

SMT200AC-SMT225 TYPE MOTOR CONNECTION DIAGRAM

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•Encoder is supplied with a 7-meter screened cable.•Encoder must be compatible with the software of the inverter. •Encoder color code is given in Table 1.•Carry out the encoder terminal connections in accordance with the encoder connection diagrams in 9.3. Encoder Connection

Diagrams.

Avoid the encoder from mechanical shock. It may result in loss of measurement precision.

Do not directly touch the connection pins of the encoder or encoder cable. The encoder is sensitive to electrostatic discharges and may be destroyed by static discharge.

Factory default settings are determined by Akar during the Auto-tuning process. Please do not try to make any further adjustments or demount the encoder!

Exchange of the encoder is only to be performed by authorized and trained personnel. In case of an exchange, encoder should be reintroduced to the inverter.


The SMT Series motors are supplied with factory-mounted encoder on the

main shaft.

Table 1- Encoder Connection Color Table

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The SMT Series motors are supplied with factory-mounted electromagnetic

brakes on. Brake adjustments are done by Akar. There is no need for any

adjustment.

5.4. Electromagnetic Brake Connection


Please do not try to make any further adjustments! Otherwise,

An exchange of the brake can only be carried out by assistance ofAkar. If brake exchange is required,

.

thebrakes and the motor will be no longer under warranty.

please get in contact withmanufacturer

•Electromagnetic brakes should be connected in accordance with the specifications on the brake label and the brake connection diagram given in Figure 3. (for SMT 200 AC and SMT 225) and Figure 4 (for SMT 140 AC).

•Electromagnetic brakes are designed for static braking applications. Brake pad/lining wear can be kept at its minimum level when the brake is only used for static applications. Therefore, generally the break does not require maintenance.

•Dynamic applications are limited to only test braking and emergency braking by the manufacturer.

•In case of power cut-off/blackout, it is not possible to release the brakes manually/mechanically. The brakes can be release with the help of a power supply. (e.g. UPS, battery)

•The brakes are securely protected against overvoltage, resulting from switching, by varistors. Brakes are supplied with factory-mounted varistors in the terminal box.

•Brake release control should be performed via micro-switch mounted on the brake. Otherwise, the brake will be no longer under warranty.

CE certificated AKAR Electromagnetic Disc Brakes provide maximum security

and are approved as a safety device for ascending car overspeed protection.

Therefore, there is no need to use bi-directional safety gear according to EN

81-1:1998+A3:2009. One-direction operated safety gear is sufficient.

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Micro-switches are used to monitor the instantaneous situation of

the brakes. Depends on the signal coming from micro-switches,

inverter decides if the system should run or not.

If the signal confirms that the brake is released successfully, inverter

will let the system run. Otherwise, if the brake cannot be released

successfully, inverter will stop the system. Therefore, the motor

cannot draw more than its nominal current to overcome the break

torque. Consequently, both inverter and the motor are protected

against overvoltage.

It is recommended to use two contactors (on AC side and DC side)

for brake switching. During normal operation, AC-side contactor

should be switched by the brake relay. It will help reducing the

mechanical noise.

On the other hand, DC-side contactor should be switched by the

motor contactors. This will lead to a quick respond and fast closing

of the brake in case of an emergency stop.

Figure 2 – SMT 140AC Brake Connection Diagram

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5.5. Electromagnetic Brake Types and Specifications

Motor Type Brake Type BrakePower(W)

BrakeCurrent

(A)

CircuitBreaker

Suitable

Cable Cross

Section

SMT 140AC

10/15/20

BR 210 S*

BR 320 S

BR 425 S

SMT 200AC

15/17/20

SMT 225AC

20/30

BR 620 D

BR 730 D

BR 850 D

BR/1-

800/1200

140

2x114

2x110

0.714

1.3

1

4 A

4 A

4 A

20.50 mm

20.75 mm

20.75 mm

If a lower voltage value than the operating voltage is applied, the

brake will not be working properly. Friction noise may occur, motor

may draw greater current and overheat or inverter may give error.

If a higher voltage value than the operating voltage is applied, the

brake will be overheating in a short time.


*Single brake

**Double brake

(Standard brake voltage is 198V DC.)

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6. Start-Up

6.1.Operating Conditions

Operational area in which the motor is installed into should satisfy the

following conditions,

• The ambient temperature should be between 0 °C - 40 °C.

• Altitude should be less than 1000 meters.

• Humidity should be less than 95%.

• Drive should be installed indoor.

• Be aware of the protection class specified on the identification

label.

• Protection against external factors (water, humidity, dust etc.)

and from construction waste.

The motors should not be operated in explosive gas atmosphere.

Please get in contact with manufacturer in case that the installation

conditions differ from the specifications above.

6.2. Check List

Before the start-up, please make sure that the following points are fulfilled:

• Insulation and operating conditions are in conformity with the

motor label and with this manual (see above).

• Motor operating values are in conformity with the values on the

motor label

• Brake is supplied with the voltage in conformity with value on the

brake label.

•Mechanical and electrical connections have been performed in

accordance with this manual.

•Make sure that the short-circuiting of the motor windings is

performed.

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• Motor is installed in horizontal plane and well balanced.

• Motor rotation direction is correct.

• Electrical insulation resistance is sufficient.

•

• Safety components are installed properly.

• Grounding connection is successfully connected.

•

•

•

•

•

The air-flow around the motor is not blocked.

PTC connection is made through PTC controller with max. 2.5V

DC.

All the precautions are taken for the parts that are moving and

under electrical tension.

Motor is operating free of vibration and noise.

Mounting of screws in the housings is made properly.

All the cable entries are sealed.

6.3. EN 81-1:1998+A3:2009 Brake Tests

Please acknowledge that the given checklist might not be covering

all the possibilities. Additional tests or controls may be required.

Therefore, commissioning and start-up should be done by

authorized and trained personnel who have knowledge and

experience in commissioning and start-up.

Before starting the test, please make sure that the short-circuit of

the motor is disabled. Thus, only the effect of the brake can be

tested without motor blockage.

It is recommended to perform the test at the midpoint of the

hoistway.

6.3.1. Overload Test

The test should be performed while the car is descending at the nominal speed

with the 125% of nominal load stated on the motor label. Supply of the motor

and the brake should be cut-off.

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6.3.2. One Brake Failure Test (only for Double Brake)

In case of the motor is supplied with double brake, the test should be

performed while the car is descending at the nominal speed with the nominal

load stated on the motor label. Supply of the motor and the brake should be

cut-off.

Remark 1: While the test is being performed, one of the brakes should be

released all the time during the test. The other one should be operated and

tested independently.

Remark 2: While the test is being performed, the elevator system should be

observed carefully. If no deceleration is observed, released break should be

closed immediately.

For permanent magnet synchronous motors, the effort required to

move the cabin upwards with its nominal load exceeds 400N.

Therefore, it is compulsory to accommodate a means of emergency

electrical operation in accordance with 14.2.1.4. (EN 81-

1:1998+A3:2009 2.5.2) Item 1

6.3.3. Micro-Switch Test

Micro-switches should be tested independent of the brakes. Micro-switch

should be open or closed instantly depending on the usage in the security

circuit. In case of incorrect or unexpected signal of the micro-switch,

operation should not be initiated.

6.4. Emergency Operations

Emergency operation is only to be performed by authorized and trained

6.4.1. Emergency Electrical Operation

Emergency operation should be performed with a means of emergency

electrical operation (see above) and this means shall be located in the relevant

machinery space:- Machine room (6.3),

- Machinery cabinet (6.5.2) or

- On the emergency and tests panel(s) (6.6).

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• those mounted on the safety gear, according to 9.8.8;

• those of the overspeed governor, according to 9.9.11.1 and

9.9.11.2;

• those mounted on the ascending car overspeed protection

means, according to 9.10.5;

•those mounted on the buffers, according to 10.4.3.4;

•final limit switches, according to 10.5;

Furthermore, this means should fulfill the following conditions according to

14.2.1.4 simultaneously:

a) operation of the emergency electrical operation switch shall permit the

control of car movement by constant pressure on buttons protected against

accidental operation. The direction of movement shall be clearly indicated;

b) after operation of the emergency electrical operation switch, all movement

of the car except that controlled by this switch shall be prevented. The effects

of the emergency electrical operation shall be overridden by switching on the

inspection operation;

c) the emergency electrical operation switch shall render inoperative by itself

or through another electric switch in conformity with 14.1.2 the following

electric devices:

d) the emergency electrical operation switch and its push-buttons shall be so

placed that the machine can be observed directly or by display devices

(6.6.2c));

e) the car speed shall not exceed 0,63 m/s.

It is recommended to use an additional power supply for emergency

operation, e.g. UPS, battery.

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6.4.2. Emergency Mechanical Operation (by Brake Releasing)

Mechanical emergency operation shall be performed if and only if there is no

other option is left for emergency rescue (e.g. brake burning).

In order to prevent the cabin from accelerating out of control, it is

highly recommended to short-circuit the motor windings.

This will lead to the speed depending braking torque which is similar

to the friction in traction machine-motor system. The short-circuit

has to be made by main contacts of the contactors. Short-circuiting

of the windings can only be made when the motor wires do not

carry any current.

Emergency mechanical operation is only to be performed by authorized and

trained personnel by following the safety instructions below:

• Emergency mechanical operation shall be performed by using

the brake releasing device.

•Make sure that the short-circuiting of the motor windings is

made. (Short-circuiting is important to prevent the motor shaft to

be loosened. Otherwise, due to the loose motor shaft, cabin will

accelerate out of control in the direction of heavy side of the

system. )

•This will lead to the speed depending braking torque and the

cabin will move with a constant speed in the direction of the

heavy side of the system.

•Close the brake in order to stop the system when it is necessary.

•Brake releasing device should be kept in a safe place so that

unauthorized person will not be able to reach it.

AKAR takes no responsibility of inappropriate use of brake

releasing device.

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6.4.3. Power Failure Operation

In case of a power failure, the Power Failure Operation is used to evacuate the

cabin by bringing the cabin in an appropriate floor level when the cabin cannot

reach to a floor level in the hoistway. This operation should be supplied with an

uninterruptible power supply (UPS) in the control panel.

Power Failure Operation and the other Emergency Operations

operate separately and cannot be substitutes for each other.

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7.Faults and Remedy

Fault Possible Reason Remedy

1

Electrical

leakage at the

motor body

Grounding is not

performed

Connect the grounding

cable to the motor

terminal

2 Motor is not

turning

Brake is not releasing

Consult the Fault 5

“Brake is not

releasing”

Wrong connection of

phase conductors

Check the connection

of phase conductors

(U, V, W) in the motor

terminal

Inaccurate micro-switch

signal

Check the micro-

switch settings

3 Motor draws

excess current


completely

Consult the Fault 5

“Brake is not

releasing”

Wrong connection of

phase conductors

Check the connection

of phase conductors

(U, V, W) in the motor

terminal

Incorrect counterweight

balancing

Check the current

values

from the

inverter screen while

the cabin is ascending

and descending with

its 50% nominal load.

These two current

values should be close

as much as possible.

4

Rough/Noisy

running of the

motor


completely

Consult the Fault 5

“Brake is not

releasing”

Incorrect inverter

(VVVF) settings

Check the inverter

(VVVF) settings


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5 Brake is not

releasing

Brake supply voltage is

low

Supply the required

brake voltage as

stated on brake label

Brake coil is burnt

Get in contact with

manufacturer

Running clearance

between the brake

plate and brake body is

not sufficient (allowed

clearance max. 0.6)

Get in contact with

manufacturer

6

Braking

cannot be

performed

There is still voltage on

the brake during the

braking

operation.

Check the micro-

switch settings and

power supply

7 Inconsistent

braking

Brake supply voltage is

low

Supply the required

brake voltage as it is

stated on brake label

Inaccurate micro-switch

signal Check the micro-

switch settings

8 Noisy braking

Incorrect inverter

(VVVF) settings

Check the inverter

(VVVF) settings;

especially the

parameters related to

brake closing times.

Brake switched on the

DC-side

Check the 5.4

Electromagnetic Brake

Connection

of this

manual and make the

switching from AC-

side. Running clearance

between the brake

plate and brake body is

not sufficient (allowed

clearance max. 0.6)

Get in contact with

manufacturer

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8. Service and Maintenance8.1. General Information on Maintenance


Service and Maintenance is only to be performed by authorized and trained

personnel.

•Observe any unusual noise during the operation and braking.

•Follow the safety instructions at all times.

•In case of emergency operation, consider that the

uninterruptible power supply (UPS) may be broken-down.

Therefore, the service personnel should have an additional UPS.

•It is not allowed to adjust electromagnetic brakes. If the running

clearance between the brake plate and brake body is reached to

its maximum value, please contact with the manufacturer.

The bearings used in SMT Series do not require any lubrication.

Please do not try to lubricate the bearings.

Dismounting of the machine is not allowed. Be aware of strong

magnetic force!

8.2. Inspections

Inspection Name

During Commissioning

Tests

Inspection

Interval

The distance between the rope

and rope protection handles

Yes

Every 4

months

Uninterruptible power supply

(UPS) functionality test

Yes

Monthly

Mounting of screws in housings

Yes

Monthly

Traction sheave control

Yes

Monthly

Brake functionality test Yes Monthly

Traction sheave wear - Annually

Running clearance between the

brake plate and brake body- Annually


8.3. Spare Parts

8.3.1. Changing Encoder

Please also refer to 5.3. Encoder Connection.

To loosen the encoder;

1.Loosen the clamping bolt of encoder. Use AA 3mm or AA 4mm

hexagon wrench. Take off the small cover from the back of the

encoder and remove the cable cover.

2.Loosen the encoder connection bolt (M5x50mm) within 1-2

complete turns.

Do not try to take off the bolt completely!

3.Use a bolt (M10x25) as a puller in order to loosen the encoder

and press the encoder out of its housing.

4.Take off the bolt which was used as a puller (M10x25) and

use hexagon wrench AA 4mm to loosen encoder connection

bolt (M5x50mm) completely. Remove the encoder connection

bolt.

5.Loosen the fixing bolt of the encoder within 3-4 complete turns.

Use AA 2mm hexagon wrench.

6.Remove the encoder carefully and insert the new encoder to

the shaft.

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To fasten the encoder;

1.Fasten the encoder connection bolt (M4x50mm) by applying

max. of 5Nm torque. Use AA 4mm hexagon wrench.

2.Fasten the fixing bolt of the encoder by applying max. of 1.2Nm

torque. Use AA 2mm hexagon wrench. Make sure that the fixing

bolt is securely fastened.

3. Insert the encoder cable to its cable cover.

4.Put on the small cover from the back of the encoder.

5.Fasten the clamping bolt of encoder by applying max. of 5Nm

torque. Use AA 3mm or AA 4mm hexagon wrench.

K-75.04; 31/01/2013; 1/01 Page 33 / 42


9.1.Motor Terminal Connection Diagrams

9.Enclosure

Max. 2.5 Volt DC voltages can be applied to PTC. Applying greater

voltages may result in PTC damages and the motors will be no

longer under warranty.

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Max. 2.5 Volt DC voltages can be applied to PTC. Applying greater

voltages may result in PTC damages and the motors will be no

longer under warranty.

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9.2.Electromagnetic Brake Connection Diagram


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9.3.Encoder Connection Diagrams


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GEARLESS PERMANENT MAGNET SYNCHRONOUS MOTOR Operation …˜EVODOV… · GEARLESS PERMANENT MAGNET...

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