VM-5 SERIES MONITOR MODEL VM-5K DUAL · PDF fileMANUAL NO. 29503E4.2 Published in Jun.1996...

MANUAL NO. 29503E4.2 Published in Jun.1996 Revised in Apr.2010

VM-5 SERIES MONITOR

MODEL VM-5K DUAL VIBRATION MONITOR

INSTRUCTION MANUAL

SAFETY CONVENTIONS VM-5K

i

For safe operation..... Thank you for using our VM-5 Series Monitor. SHINKAWA Sensor Technology applies strict quality control

and inspections to ensure the high reliability of its products.

This instruction manual contains descriptive information, specifications, and operating, setting, and adjusting

procedures.

Please study the contents of this manual and related manuals thoroughly before installing or operating the

equipment, and keep it handy for future reference.

"Safety Conventions" Please thoroughly study the following section entitled "Safety Conventions" before operating the

equipment.

The safety symbols explained in this section are placed outside the left margin next to the text to which they

apply.

This unit is designed for use by specialists or persons thoroughly familiar with the field.

Make sure that the end user receives the Instruction Manual delivered with this unit.

Before use..... When the unit is received, inspect it for damage suffered in transport and check whether it is the item you ordered. In the unlikely event that it was damaged in transport or does not function according to specifications, please contact the SHINKAWA Office or dealer nearest you. Store the unit under the ambient conditions given in the specification. Avoid places where it is exposed to high humidity or corrosive gases.


ii

Make it a rule to follow the instructions given in this manual. This manual contains important information designed to prevent personal injury and property damage, and

ensure safe operation of the equipment.

Familiarize yourself with the signs and symbols explained below before proceeding to read the manual, and

observe the instructions given.

Explanation of signs

Symbols Explanation

WARNINGIndicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to permit for property-damage-only accidents.

◊ "Serious injury" refers to such injuries as loss of eyesight, injuries, burns (due to heat or cold), electric

shock, fractures, and poisoning, that have permanent aftereffects and require hospitalization or long-term

outpatient treatment.

◊ "Moderate or minor injury" refers to such injuries as burns and electric shock that do not require

hospitalization or long-term outpatient treatment. "Property-damage-only accidents" refers to

consequential damage related to destruction of property and damage to the equipment.

Explanation of symbols

Symbols Explanation

Indicates a prohibited action. Details are given in the text next to the symbol.

Indicates a mandatory action. Details are given in the text next to the symbol.


iii

To ensure safe use of this equipment, strictly observe the safety precautions provided in this manual, as well as installation methods and methods of use stipulated by laws and regulations. SHINKAWA Sensor Technology will not be liable for damage, etc. due to methods of use contravening to the instructions provided here.

Safe use

WARNING

Make sure to ground. May cause electric shock or malfunction. Make sure to turn the power off before any wiring work. Will cause electric shock.

CAUTION

Connect the input signal within the voltage range described in the specification to the input terminals. Will cause damage and malfunction of the instrument.

Install the monitor unit and its relay module unit in the same location in the instrument rack. Will cause damage to the instrument and malfunction of the turbine monitoring system.

A printed circuit board and electronic products may receive damage with the static electricity of a human body. Touch the metal part once and discharge your static electricity before dealing with it. Will cause damage and malfunction of the instrument.

Do not touch parts and soldered surfaces of the monitor unit. Will cause damage and malfunction of the instrument.

The monitor unit is a precision instrument. Take care not to expose it to excessive shock or vibration.

Do not change the parameter settings during operation. May cause unexpected alarm output.

Do not pull out the face plate during operation. Will cause damage to the instrument and malfunction of the turbine monitoring system.

Do not measure insulation resistance and dielectric strength other than those at places specified. Will cause damage to the instrument.

Do not remodel this monitor unit without permission. Otherwise the guarantee can not be made.

PROHIBITION

Connect earth wire

MANDATORY

MANDATORY

PROHIBITION

PROHIBITION

PROHIBITION

PROHIBITION

PROHIBITION

PROHIBITION

MANDATORY


iv

EMC(Electro-magnetic compatibility) The EMC of each VM-5 Series monitor is evaluated by various noise tests.

However, its characteristics may vary with on environmental conditions such as the magnitude of noise,

ambient temperature, humidity and the arrangement of equipment.

For the above reason, when operating the monitor, please observe the following CAUTION.

CAUTION

The monitor unit should be operated by specialists or personnel who have knowledge of it. When a shielded cable is used, the length of the unshielded cable section should be less than 100mm (3.937in REF.). For each relay used near this monitor unit, devices related to this monitor unit or signal cables connecting the monitor unit and these devices, install a surge killer.

Firmly tighten each screw used for mounting each unit. In additional, always close the face plate for the monitor unit, then fix it with knurled screws. In order to prevent the system from its malfunction when the monitor unit fails, provide the systematic interlock function.

Do not wire input signal cables in parallel with control and power cables. It is recommended that separated wire ducts be used for these cables.

Do not use any radio equipment near the monitor unit.

Noise filter Noise transmitted through in each cable may be rejected to some extent by inserting a ferrite core in the cable

(note 1).

If the cable passes through noisy surroundings, it is recommended that such a noise prevention device is used.

(note 1) ZCAT3035-1330 : TDK

MANDATORY

MANDATORY

MANDATORY

MANDATORY

MANDATORY

PROHIBITION

PROHIBITION

TABLE OF CONTENTS VM-5K

v

1. GENERAL INFORMATION --------------------------------------------------------------------------------------------------- 1

2. SPECIFICATIONS --------------------------------------------------------------------------------------------------- 2

3. OUTLINE DRAWING --------------------------------------------------------------------------------------------------- 3

4. INTERCONNECTION 4-1 INTRINSIC SAFETY EXPLOSION-PROOF CONSTRUCTION ---------------- 5

4-2 NON-INTRINSIC SAFETY EXPLOSION-PROOF CONSTRUCTION --------- 9

5. DESCRIPTION OF FUNCTIONS 5-1 DISPLAY -------------------------------------------------------------------------------------- 13

5-2 ALARM FUNCTIONS ---------------------------------------------------------------------- 13

5-3 DANGER(DAN)ALARM -------------------------------------------------------------------- 13

5-4 ALERT(ALE)ALARM ----------------------------------------------------------------------- 13

5-5 OK(INPUT ABNORMAL)ALARM -------------------------------------------------------- 13

5-6 GAP ALARM ---------------------------------------------------------------------------------- 13

5-7 ALARM DELAY FUNCTION -------------------------------------------------------------- 13

5-8 FIRSTOUT DISPLAY ----------------------------------------------------------------------- 14

5-9 SEQUENCE FUNCTION ------------------------------------------------------------------ 14

5-10 BYPASS FUNCTION-------------------------------------------------------------------------- 14

5-11 POWER ON TIMER MODE -------------------------------------------------------------- 14

5-12 ALARM RELAY MODE -------------------------------------------------------------------- 15

5-13 ALARM RESET MODE -------------------------------------------------------------------- 15

5-14 MONITOR OUTPUT ------------------------------------------------------------------------ 15

5-15 RECORDER OUTPUT------------------------------------------------------------------------ 15

5-16 SELF-DIAGNOSTIC FUNCTION ------------------------------------------------------- 15

5-17 POWER SEQUENCE ---------------------------------------------------------------------- 15

5-18 TIMED OK CHANNEL DEFEAT --------------------------------------------------------- 15

5-19 SUPPRESSION FUNCTION ------------------------------------------------------------- 15

6. DESCRIPTION OF PARTS 6-1 DESCRIPTION OF FRONT PANEL/SIDE VIEW ----------------------------------- 16

6-2 DESCRIPTION OF PARTS --------------------------------------------------------------- 17

6-3 DESCRIPTION OF LCD DISPLAY ----------------------------------------------------- 18

TABLE OF CONTENTS VM-5K

vi

7. PARAMETER SETTING 7-1 WITHDRAWAL OF FACE PLATE ------------------------------------------------------ 19

7-2 BASIC KEY OPERATIONS --------------------------------------------------------------- 21

7-3 DIP SWITCH SETTING -------------------------------------------------------------------- 22

7-4 PARAMETER SETTING 1 ---------------------------------------------------------------- 23

7-5 PARAMETER SETTING 2 ---------------------------------------------------------------- 32

8. FUNCTIONAL DIAGRAM 8-1 BLOCK DIAGRAM -------------------------------------------------------------------------- 40

8-2 FUNCTIONAL BLOCK DIAGRAM ------------------------------------------------------ 41

9. MAINTENANCE 9-1 RECOMMENDED MAINTENANCE EQUIPMENT ------------------------------------ 43

9-2 VERIFICATION OF OK(INPUT ABNORMAL ALARM)

AND GAP ALARM OPERATION ----------- 44

9-3 VERIFICATION OF DANGER(DAN)/

ALERT(ALE)ALARM OPERATION ----------- 47

9-4 VERIFICATION OF MEASURED VALUE AND RECORDER OUTPUT ------ 49

9-5 ADJUSTMENT OF MEASURED VALUE AND

RECORDER OUTPUT ZERO SPAN ---------- 51

9-6 REPLACEMENT OF ALUMINUM ELECTROLYTIC CAPACITOR ------------- 53

9-7 REPLACEMENT OF LCD UNIT --------------------------------------------------------- 54

9-8 LCD CONTRAST ADJUSTMENT ------------------------------------------------------- 55

9-9 LCD BACKLIGHT ADJUSTMENT ------------------------------------------------------ 56

10. TROUBLESHOOTING 10-1 LCD DISPLAY CONTENT ABNORMAL ---------------------------------------------- 57

10-2 OK DISPLAY FLASHES ------------------------------------------------------------------- 58

10-3 MEASURED VALUE ABNORMAL ------------------------------------------------------ 59

10-4 OK(INPUT ABNORMAL ALARM)DOES NOT OPERATE ------------------------ 60

10-5 ALERT(ALE)ALARM DOES NOT OPERATE ---------------------------------------- 60

10-6 DANGER(DAN)ALARM DOES NOT OPERATE ------------------------------------ 61

10-7 ERRORNEOUS OPERATION OF DANGER(DAN)/

ALERT(ALE)ALARM ---------- 61

10-8 NO RECORDER OUTPUT --------------------------------------------------------------- 62

10-9 GAP ALARM DOES NOT OPERATE -------------------------------------------------- 62

1. GENERAL INFORMATION VM-5K

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OVERVIEW This is a highly reliable dual channel vibration monitor which monitors the shaft vibration of

rotating machinery.

Both a 10-slot rack mounting type and a single-unit independent type with a built-in power supply

are available so that it can respond flexibly to any system design from medium and small scale

rotating machinery to TSI. The monitor accepts signals detected by a transducer and displays them

on LCD.

It is also possible to set ALERT and DANGER alarm levels independently to detect machine

failures early on and inform the operator of these failures. It has a built-in self-diagnostic function

to inform the operator of input transducer failures, thereby preventing rotating machinery from

false shutdowns.

FEATURES

• Conforms to API St’d 670

• The monitor is available as a single unit independent type or a rack mounting type.

• Has a self-diagnostic function.

• Allows the operator to change each setting even in the field.

• Important information such as measured value, alarm set value and gap voltage is normally

displayed.

• Can isolate recorder output (option).

• LED display / contact output (DANGER / ALERT alarm).

• LED display / contact output (Input abnormal alarm).

• For alarm output wiring proceed as described in the instruction manuals for the

VM-5G Single Unit Instrument Rack and VM-5Y Relay Module Unit used in

combination with this monitor unit.

• If megger test is made on the signal cable between transducer and monitor,

disconnect the cable from transducer and monitor.

Be sure to discharge the charged electric load before connecting the cable to the

transducer and monitor.

If this caution is not adhered to, the transducer and monitor could be damaged.

Mandatory

Caution

2. SPECIFICATIONS VM-5K

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Monitor range Input signal Low cut-off frequency *3 High cut-off

frequency *3 Rectification Recorder output Alarm reset (DANGER)

Alarm reset (ALERT)

Alarm reset (OK)

1 0 to 100µm pk-pk 1 5Hz or less 1 100Hz 0 Average value 0 4 to 20mADC 0 AUTO-RESET 0 AUTO-RESET 0 AUTO-RESET2 0 to 125µm pk-pk 2 9.5Hz Seismic filter *1 2 500Hz 1 pk to pk 1 1 to 5VDC 1 SELF-HOLD 1 SELF-HOLD 1 SELF-HOLD3 0 to 200µm pk-pk

1 VK-202A, VK-202P, FK-202F 3 14Hz Seismic filter *1 3 1kHz

4 0 to 400µm pk-pk 2 VK-302P 4 15Hz Seismic filter *1 4 4kHz 2 rms

(additional spec./RMS) 5 0 to 500µm pk-pk 3 VC Series 5 10kHz

2Output card

/IS or /REoption

6 0 to 3mils pk-pk 5 40Hz(36dB/oct)

Pipe filter *1 7 0 to 5mils pk-pk 8 0 to 10mils pk-pk 6 60Hz(36dB/oct)

Pipe filter *1 A 0 to 15mils pk-pk

Relay mode (DANGER)

Relay mode (ALERT)

Relay mode (OK)

Alarm delay time(DANGER)

Alarm delay time(ALERT) Alarm output type First out*2

0 3 sec. 0 3 sec. 0 OFF 0 NORMALLY DE-ENERGIZED 0 NORMALLY

DE-ENERGIZED 0 NORMALLY DE-ENERGIZED 1 1 sec. 1 1 sec.

1 CH1 : 2 points (DANGER1,ALERT1) CH2 : 2 points (DANGER2,ALERT2) 1 ON

2 6 sec. 2 6 sec. 1 NORMALLY ENERGIZED 1 NORMALLY

ENERGIZED 1 NORMALLY ENERGIZED 3 None 3 None

2

CH1 : 4 points (DANGER1,DANGER2, ALERT1,ALERT2)

CH2 : None 3 Special alarm logic(option)

Special alarm logic

DANGER ALERT CE

markingrms. rectification Isolate output Recorder optionoutput

Input power supplyrequirements

Tropicalspec.

Sensitivity correction 1CH 2CH 1CH 2CH

0 4 to 20mADC 2 0 to -10VDC 0 85 to 264VAC 1 TIIS(IEC) >DANGER >DANGER >ALERT >ALERT 1 1 to 5VDC 3 0 to 10VDC 1 24VDC 2 FM >DANGER NOT OK >ALERT <ALERT

When rectification code 2is selected, specify this option code. 2 0 to -10VDC 4 0 to -5VDC 2 110VDC 4 CSA NOT OK >DANGER <ALERT >ALERT

3 0 to 10VDC 5 0 to 5VDC 5 ATEX >ALERT NOT OK 4 0 to -5VDC

1

NOT OK >ALERT 5 0 to 5VDC >DANGER >DANGER >ALERT >ALERT >DANGER >ALERT >ALERT <ALERT >ALERT >DANGER <ALERT >ALERT >DANGER NOT OK >ALERT NOT OK

2

NOT OK >DANGER NOT OK >ALERT ALARM INDICATOR DANGER : (red LED)

ALERT : (yellow LED) ABNOR. ALARM INDICATOR

OK : (green LED)

BYPASS INDICATOR BYPASS : (red LED)

ALARM SET VALUE DANGER1 : ALERT1 : DANGER2 : ALERT2 : Unless specified otherwise, preset to : DANGER : 100% of monitor range ALERT : 90% of monitor range

TRANSDUCER INPUT VK-202A,VK-202P,FK-202F,VK-302P,VC Series Number of input points : 2 points

INPUT IMPEDANCE Approx. 50kΩ EXTERNAL CONTACT INPUT (FROM REAR PANEL)

Contact type : Dry contact Contact for external reset Contact for sequence

BAR GRAPH METER Recorder output conversion accuracy ± 2.5% of F.S. DIGITAL METER Recorder output conversion accuracy ± 1.0% of F.S.

SEQUENCE SET VALUE (to increase alarm set value during operation of the sequence circuit)

: ×1.0 to 10.0 (×0.1 step) Preset to ×1.0 unless specified otherwise. CAUTION : Set the alarm set value so that its designated

multiple is within 110% of the measurement range during operation of the sequence circuit. If set to more than 110%, alarm may not be output. RECORDER OUTPUT

CONVERSION ACCURACY

± 0.5% of F.S. at 100Hz at 25°C (77°F REF.) ± 2.0% of F.S. at 100Hz at 0 to 65°C (32 to 149°F REF.)

SUPPRESSION FUNCTION SET VALUE

: 0.0 to 10.0 % of monitor range (0.1 % step)Preset to 2.0 % unless specified otherwise. CAUTION : When the measurement value is not more than

suppression function set value, indication and recorder output value shall be as 0 %.

LOOP ACCURACY FOR MONITOR+SENSOR (if calibrated as a loop)

± 5% of F.S. or less

OTHERS Standard Specifications ALARM SET POINT 4 points (DANGER1,ALERT1,DANGER2,ALERT2) ALARM SET RANGE 0 to 110% of monitor range

RECORDER OUTPUT (FROM REAR PANEL)

Voltage or current output proportional to monitor range 1 to 5VDC (output impedance : 250Ω) 4 to 20mADC (max. load resistance : 500Ω) 0 to -10VDC*,0 to 10VDC*,0 to -5VDC*,0 to 5VDC* (output impedance : 100Ω) (*option) Number of output points : 2 points ALARM SET

ACCURACY ± 1.0% of F.S. or less

ALARM SET REPEATABILITY

± 0.1% of F.S. or less

MONITOR OUTPUT (FROM FRONT, REAR PANEL)

Input signal is output via a buffer amplifier. Signal level : -0.8 to -22VDC(VK), 0 to 5VDC(VC) Output impedance : 100Ω (load resistance 50kΩ or more)

ALARM OUTPUT 5 points (DANGER1,ALERT1,ALERT2,DANGER2,OK) or 6 points (DANGER1,ALERT1,ALERT2,DANGER2,OK1,OK2)

TEMPERATURE RANGE

Operating temperature : 0 to 65°C (32 to 149°F REF.) Storage temperature : -30 to +85°C (-22 to +185°F REF.) Relative humidity : 20 to 95% (noncondensing)

MATERIAL AND FINISH Face plate : Aluminum Munsell N-4.0 (equiv.) MEASURED VIBRATION VALUE

LCD digital meter with 5 digits (7 segments, with back light) LCD bar graph meter (40 segments, with back light) * Measurement value and alarm set value are indicated on

the digital meter and bar graph meter simultaneously. MASS Monitor : max.0.7kg (max.1.6lb REF.)

(including single unit instrument rack : max.2.5kg (max.5.5lb REF.))

- - -

Ordering Information Standard Specifications

VM-5K- -

Model Code / Additional Spec. Code( ) No entry if additional spec. code is not specified.

/CEM /LG /RMS/(IS or RE )/5G /TRP/EX

Note) *2 It is necessary to set all monitor units in the same rack in first out function ON when it is used first out function.

39501E4.6

Note) Input abnormal alarm is not applicable in case of VC input signal.

When recorder output code 2 is selected, specify this option code.

Note) *1 A filter card (option) is required for use of seismic and pipe filters. The seismic filter can be turned ON/OFF (IN/OUT) by an external contact signal. (Preset to OFF (OUT)) At seismic filter is OFF(OUT), the low cut-off frequency is 2Hz. The pipe filter is normally ON(IN) ; it cannot be set to OFF(OUT).

Note) *3 Select so that [high cut-off frequency≥Low cut-off frequency×10]

3. OUTLINE DRAWING VM-5K

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No. Name No. Name

1 LCD display 8 Tag, Ser.No. plate

2 DANGER lamp 9 LCD board

3 ALERT lamp 10 Slide frame

4 OK lamp 11 Main board frame

5 BYPASS lamp 12 Main board

6 Monitor output connector 13 DIN connector (64pin)

7 Name plate --- ----------

Finish Face plate : Munsell N-4.0 (equiv.)

Mass Max. 0.7kg (Max. 1.6lb REF.)

Unless otherwise specified, units are in millimeters (mm) and grams (g).

Reference dimensions in parentheses are in inches (in) and pounds (lb)

4. INTERCONNECTION VM-5K

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INTERCONNECTION OF I/O TERMINAL BOARD

• Do not use the blank terminals.

INTERCONNECTION OF TRANDUCER

Connection of signal transmission cable

• For interconnection between the driver and the monitor, or between the driver and

safety barrier, and safety barrier and monitor, make sure to use 3-core shielded

cables or pair shielded standard 3-wire instrument cables, since the signal

transmitted is weak.

(Do not use unshielded cables or non-pair shielded multicore cables as the

measured values could be affected by external noise.)

Recommended cables

Cable Recommended Note

CVVS (3-core shielded cable)

Excellent

Recommended cabling as per API st’d 670

Normal: Silver-plated braid

Recommended: Copper tape shielded (Core wire: Soft copper wire)

Use conduit pipe (cable rack) for wiring.

INSTRUMENT CABLE (Pair shielded standard 3-wire)

Good

Although vibration and displacement signals can be transmitted in one instrument cable, use separate cables, because a high vibration signal exerts injurious influence over other displacement and vibration signals.

Recommended: Outside shield of aluminum or copper tape.

• Provide separate cabling for pulse signals (phase marker, revolution) and for

displacement and vibration signals.

• Avoid running signal transmission cables together with control and power cables.

• Install all cables in conduit pipes or on cable racks.

Prohibition

Mandatory

Conduit pipe

Shielded wire

Conduit pipe

Shielded wire

Outside shielded

Mandatory


-5-

4-1 INTRINSIC SAFETY EXPLOSION-PROOF CONSTRUCTION

4-1-1 MODEL VK AND VM-5G OR VM-5Y1,2,3

VK-202A input : TIIS Ex ia IIC T6 Safety Barrier Terminals Monitor Terminals

Hazardous area Safe area 1ch 2ch Signal name Wire no.

No. No. Terminal name No. Terminal name No.Output A 4 2 IN A1 IN B1

Common, Shield B, D Earth Earth COM A2 COM B2Power C 3 1 PWR A3 PWR B3


-6-

• Be sure to observe the following cautions at the time of interconnection.

Note No. in drawing Caution

1)

Use flexible armored cables as sensor cables and extension cables, unless these cables are not at risk for damage.

Allowable bending radius Without armor : 30 mm (1.18 in REF.) With armor : 50 mm (1.97 in REF.) Allowable tension : 98.1N (10 kgf REF.)

2)

To insulate the connector, cover it with the supplied shrink tube (insulating sleeve) or insulating tape. Take measures to prevent oil or water from entering the insulating sleeve or tape.

3) Make sure to fix the terminal cover on the terminal block of the VK driver. Install the driver in the driver housing and fix the cable securely with a clamp near the teminal block.

4) Keep the unshielded portion of cables at connecting parts as short as possible. (less than 100mm recommended.) Connect the shielded wires to the COM terminal.

5)

Use a 3-core shielded cable with AWG No. 14 to No. 18 gage stranded conductors for wiring between the VK driver and the safety barrier, and between the safety barrier and the monitor (max. length 500 m (max. length 1,640ft REF.) [Cw ≤ 0.134µF, Lw ≤ 0.71mH]).

In the case of other Intrinsic Safety, refer to an Instruction Manual of each Transducer.

Keep wiring away from power and control lines to prevent noise interference.

6) Install the safety barrier in the enclosure.

• Make sure to turn the power off before wiring work to prevent accidents due to

electric shock.

• If wired according to this drawing, the resistance of the safety barrier causes the

input voltage of the monitor to drop by about 1%.

Warning

Mandantory


-7-

4-1-2 MODEL FK AND VM-5G OR VM-5Y1,2,3

FK-202F input : TIIS Ex ia IIC T4 Safety Barrier Terminals Monitor Terminals

Hazardous area Safe area 1ch 2ch Signal name Wire no.

No. No. Terminal name No. Terminal name No.OUT A 4 2 IN A1 IN B1COM B Earth Earth COM A2 COM B2-24V C 3 1 PWR A3 PWR B3

Shield (COM) D Earth Earth COM A2 COM B2


-8-



1)


2)

Use flexible armored cables as sensor cables and extension cables, unless these cables are not at risk for damage.

Allowable bending radius Without armor : 30 mm (1.18 in REF.) With armor : 50 mm (1.97 in REF.) With fluoro resin coating armor : 75mm Allowable tension : 98.1N (10 kgf REF.)

3) Keep the unshielded portion of cables at connecting parts as short as possible. (less than 100mm recommended.) Connect the shielded wires to the COM terminal.

4)

Use a 3-core shielded cable with AWG No. 16 to No. 18 gage stranded conductors for wiring between the FK driver and the safety barrier, and between the safety barrier and the monitor (max. length 500 m (max. length 1,640ft REF.) [Cw ≤ 0.09µF, Lw ≤ 1.84mH]).

In the case of other Intrinsic Safety, refer to an Instruction Manual of each Transducer.

Keep wiring away from power and control lines to prevent noise interference.

5) Install the safety barrier in the enclosure.

6) Remove the insulation so there is 9mm of exposed wire, and twist the wire. Do not finish terminals of the wire with solder.


electric shock.

• If wired according to this drawing, the resistance of the safety barrier causes the

input voltage of the monitor to drop by about 1%.

Warning

Mandantory


-9-

4-2 NON-INTRINSIC SAFETY EXPLOSION-PROOF CONSTRUCTION

4-2-1 MODEL VK AND VM-5G OR VM-5Y1,2,3 Connected terminals

CH1 CH2 Signal name Wire no.

Terminal name No. Terminal name No. Output A IN A1 IN B1

Common, Shield B, D COM A2 COM B2 Power C PWR A3 PWR B3


-10-



1)


Allowable bending radius Without armor : 30 mm (1.18 in REF.) With armor : 50 mm (1.97 in REF.) Allowable tension : 98.1N (10 kgf REF.)

2) Connect the shielded wires to the COM terminal. Keep the unshielded portion of cables at connecting parts as short as possible. (less than 100mm recommended.)

3) Use a 3-core shielded cable with AWG No. 14 to No. 18 gage stranded conductors for wiring between the VK driver and the monitor. Do not wire the cables together in high tension ducts.


electric shock. Warning

Mandantory


-11-

4-2-2 MODEL FK AND VM-5G OR VM-5Y1,2,3 Connected terminals

CH1 CH2 Signal name Wire no.

Terminal name No. Terminal name No. OUT A IN A1 IN B1 COM B COM A2 COM B2 -24V C PWR A3 PWR B3

Shield (COM) D COM A2 COM B2


-12-



1)


Allowable bending radius Without armor : 30 mm (1.18 in REF.) With armor : 50 mm (1.97 in REF.) With fluoro resin coating armor : 75mm

Allowable tension : 98.1N (10 kgf REF.)

2) Connect the shielded wires to the COM terminal. Keep the unshielded portion of cables at connecting parts as short as possible. (less than 100mm recommended.)

3) Use a 3-core shielded cable with AWG No. 16 to No. 18 gage stranded conductors for wiring between the FK driver and the monitor. Do not wire the cables together in high tension ducts.

4) Remove the insulation so there is 9mm of exposed wire, and twist the wire. Do not finish terminals of the wire with solder.


electric shock. Warning

Mandantory

5. DESCRIPTION OF FUNCTIONS VM-5K

-13-

5-1 DISPLAY

Measured vibration values, alarm set values, and sensor set gap voltage are normally displayed on

individual LCD for each channel.

5-2 ALARM FUNCTIONS ALERT alarm, DANGER alarm, OK (input abnormal) alarm and GAP ALARM are contact-output

and displayed on LEDs.

• Alarm limit values are input and displayed separately for each channel.

• GAP alarm is output at the ALERT alarm contact by OR voting logic.

• Alarm is output separately for each channel, if the VM-5G Single Unit Instrument

Rack and VM-5Y Relay Module Unit have an SPDT relay contact arrangement.

In case of a DPDT relay, alarm outputs by OR voting logic between CH1 and CH2.

5-3 DANGER (DAN) ALARM A measured value exceeding the DAN alarm set values causes alarm output at the DAN contact

and DAN alarm display.

For details refer to 7. PARAMETER SETTING on page 19.

5-4 ALERT (ALE) ALARM A measured value exceeding the ALE alarm set values causes alarm output at the ALE contact and

ALE alarm display.


5-5 OK (INPUT ABNORMAL) ALARM When the level of the signal from the transducer becomes abnormal, OK alarm outputs and LED is

flashing. (Flashing interval : 2Hz) It is also activated when excessive signal input from sensor, in

this case flashing interval vary 1Hz. This condition is maintained by the off-delay timer for approx.

15 sec. after the level of the transducer signal has returned to normal.

5-6 GAP ALARM When the level of the signal from the transducer comes to lie outside the set range of GAP alarm,

ALERT alarm is contact-output and the ALERT alarm lamp lights.


• GAP ALARM outputs between it and the ALERT alarm by OR voting logic.

5-7 ALARM DELAY FUNCTION To prevent output of false DAN/ALE alarm due to noise, etc., a delay time can be specified

separately for each channel.



-14-

5-8 FIRSTOUT DISPLAY • Installation in VM-5H3, 5W1 Instrument Rack

Causes the alarm lamp of the channel that first output alarm to flash. • Installation in VM-5G Single Unit Instrument Rack

Causes the lamp of the alarm first output to flash. For details refer to 7. PARAMETER SETTING on page 19.

• An alarm lamp set flashing by the First-out Display function cannot be reset by pressing the RES (RESET) key. Reset by shorting between the RES and COM terminals.

• It is necessary to keep short circuit of the terminals for more than one (1) second to operate these functions.

5-9 SEQUENCE FUNCTION To prevent alarm output due to excessive vibration generated during starting and stopping of the machine, this function expands the DANGER alarm and ALERT alarm set ranges by shorting between the SEQ. and COM terminals.

• The machine is not protected if the alarm set value exceeds 110% of the monitor range due to operation of the sequence circuit.


5-10 BYPASS FUNCTION Used to disable alarm output while setting the alarm parameters, or during maintenance/inspection work. The alarm BYPASS lamp flashes or lights during this operation. Set by turning the BYPASS switch to ON.

• While BYPASS FUNCTION is in operation, the machine is not protected.

5-10-1 DANGER BYPASS Cuts off DANGER alarm. While cut off, the DANGER alarm and BYPASS lamps are flashing. This function is activated by means of the DANGER BYPASS switch. For details refer to 7. PARAMETER SETTING on page 19.

• If mounted in the VM-5H3 or VM-5W1 Instrument Rack, all units in the instrument rack can be set collectively to DANGER BYPASS. For details refer to VM-5H3 or VM-5W1 Instrument Rack instruction manual.

5-10-2 CH1 BYPASS DANGER alarm, ALERT alarm, OK alarm, display and recorder output of CH1 are cut off. While cut off, the OK lamp goes off and the BYPASS lamp lights. This function can be activated by means of the CH1 BYPASS switch. For details refer to 7. PARAMETER SETTING on page 19.

5-10-3 CH2 BYPASS DANGER alarm, ALERT alarm, OK alarm, display and recorder output of CH2 are cut off. While cut off, the OK lamp goes off and the BYPASS lamp lights. This function can be activated by means of the CH2 BYPASS switch. For details refer to 7. PARAMETER SETTING on page 19.

5-11 POWER ON TIMER MODE Operates for approx. 5sec. after the power is turned on. (for approx. 25 sec. in case of pk-pk detection). In this mode, all alarm functions are disabled and the BYPASS and OK lamps flash.

Warning

Warning


-15-

5-12 ALARM RELAY MODE Each alarm contact can be set to either normally de-energized or normally energized. Alarm contact operation

Monitor power ON

Monitor power OFF Normal state Alarm state

NO contact NORMALLY DE-ENERGIZED OPEN OPEN CLOSE NO contact NORMALLY ENERGIZED OPEN CLOSE OPEN NC contact NORMALLY DE-ENERGIZED CLOSE CLOSE OPEN NC contact NORMALLY ENERGIZED CLOSE OPEN CLOSE


5-13 ALARM RESET MODE The automatic reset of all alarm output and alarm lamps can be set when the measured value or input signal return to normal. In addition to above, the self-holding function can be also set for each alarm output that holds the alarm condition until reset by setting RES key (inside of the front panel) or by shorting between RES and COM terminal.

• Alarm reset is not possible until the output condition has been released.



5-14 MONITOR OUTPUT For vibration analysis, the vibration waveform signal is output from the BNC connector on the monitor front panel and buffer output terminal on the rear panel (VM-5G Single Unit Instrument Rack, VM-5Y Relay Module Unit) via a buffer amplifier.

5-15 RECORDER OUTPUT An analog signal proportional to the vibration value is output from the terminal block.

5-16 SELF-DIAGNOSTIC FUNCTION Any failures in the input system, such as sensor short-circuit or imperfect connections, are detected, then an OK alarm is contact-output and (simultaneously), the OK lamp flashes.

5-17 POWER SEQUENCE If mounted in the VM-5G Single Unit Instrument Rack, the secondary power supply can be cut off by shorting between the P-S (POWER SEQUENCE) and COM terminals.

• This function can be used for pulling out or pulling in the monitor unit at the emergency time. However, do not use for long time shorting of more than one (1) minute or turning on and off repeatedly. Also, the parallel connection for the two (2) or more monitors should not be allowed.

5-18 TIMED OK CHANNEL DEFEAT When on setting, when OK alarm is output, DANGER alarm, ALERT alarm, display, and recorder output are disabled. DANGER ALERT, display and recorder output are not disabled, in case of excessive signal input from sensor. For details refer to 7. PARAMETER SETTING on page 19.

5-19 SUPPRESSION FUNCTION This function can suppress the measurement around zero measurement point of the monitor by the effect of the piping vibration or electric noise, etc. during the machine stopping. The suppression can be set at 0.0 to 10.0 % (0.1% step) of the monitor range. ex.) If the suppression is set at 2.0%, monitor measurement less than 2.0% shall be output as 0.0%.

Caution

6. DESCRIPTION OF PARTS VM-5K

-16-

6-1 DESCRIPTION OF FRONT PANEL/SIDE VIEW No. Name No. Name

1 LCD display 8 Tag, Ser.No. plate

2 DANGER lamp 9 LCD board

3 ALERT lamp 10 Slide frame

4 OK lamp 11 Main board frame

5 BYPASS lamp 12 Main board

6 Monitor output connector 13 DIN connector (64pin)

7 Name plate --- ----------


-17-

6-2 DESCRIPTION OF PARTS

1 LCD display

This LCD display serves for display of measured values, alarm set values, sensor set gap

voltage value and other set values.

2 DANGER alarm lamp

Lit when DANGER alarm is output.

3 ALERT alarm lamp

Lit when ALERT alarm is output.

4 OK lamp

Flashes (steady light in normal condition) when OK (input abnormal) alarm is output.

5 BYPASS lamp

Flashes during DANGER bypass and lights during CHANNEL bypass.

6 Monitor output connector

This is a BNC output connector for connection of an oscilloscope to observe the waveform, or

for output to other devices such as an analyzer.

The input signals from the transducers are output through a buffer amplifier.

• Make sure to insulate the monitor output against earth.

If not insulated, a 2-point earth system results, which may cause noise interference.

7 Name plate

8 Tag, Ser. No. plate

The TAG NO. and SER.NO. are entered on this plate.

9 LCD board

10 Slide frame

11 Main board frame

12 Main board

13 DIN connector (64pin)

Connector for connection to the VM-5G Single Unit Instrument Rack or

VM-5H3 or VM-5W1 Instrument Rack.

Mandatory


-18-

6-3 DESCRIPTION OF LCD DISPLAY

NO. NAME NO. NAME

1 CH1 measured value (digital) 8 CH2 measured value (digital)

2 CH1 measured value (bar graph) 9 CH2 measured value (bar graph)

3 CH1 sensor set gap voltage value 10 CH2 sensor set gap voltage value

4 CH1 DANGER alarm set value 11 CH2 DANGER alarm set value

5 CH1 ALERT alarm set value 12 CH2 ALERT alarm set value

6 CH1 GAP ALARM HIGH set value 13 CH2 GAP ALARM HIGH set value

7 CH1 GAP ALARM LOW set value 14 CH2 GAP ALARM LOW set value

LCD display

MEAS2

MEAS1

4

8

12

16

MEAS1MEAS2

0 0

20 20

40 40

60 60

80 80

100%

100%

%

%

1

6

4

5

3

7

2 9

14

10

12

11

13

8

7. PARAMETER SETTING VM-5K

-19-

7-1 WITHDRAWAL OF FACE PLATE

• Pull out the face plate to gain access to the keys and DIP switches for setting the

parameters located inside the unit.

1) Evenly loosen the knurled screw at the top and bottom of face plate.

• Should screw manually.

Do not use any tools.

2) Pull out the face plate.

• Do not pull out beyond the depth of the slide frame.

• Make sure not to touch internal chassis.

• Failure to turn off the power before pulling the monitor unit out of the rack will result

in serious damage and accidents.

Prohibition

Prohibition

Prohibition

Caution


-20-

3) Open the face plate toward the right.

• Make sure not to touch internal printed circuit board.

4) The keys and DIP switches for setting the parameters are located inside the unit.

1 2

3 4

5 6

DIP switches

Specification set keys

ON

SET

RES

CHK

1BY 2BY DBY MS1 MS2 N•A

Prohibition


-21-

7-2 BASIC KEY OPERATIONS • (SET) key : Used to change the display mode of the LCD display and to

finalize input.

• (UP) key : Used to change parameters and increment set values.

• (DOWN) key : Used to change parameters and decrement set values.

• (RESET) key : Used to reset alarms set to self-holding.

• Alarm reset is not possible until the output condition has been released. • An alarm lamp set flashing by the First-out Display function cannot be reset.

(Reset by shorting between the RES and COM terminals.)

• (CHECK) key : The CHECK key is used to adjust the gain while changing set values with the UP and DOWN keys. For example, if the CHECK key is pressed while the value 0.1 appears on the MEAS 2 LED display, a value corresponding to the measurement range × 0.1 can be set.

• Each operation of the CHECK key will multiply the multiplier by 10.

: When the CHECK key is pressed during normal monitoring, the monitor will go through self-diagnosis in the following sequence : (1) LCD, LED display test (all lamps light) (2) Self-diagnosis (3) Display of diagnosis result (Normal) (Abnormal)

• The diagnosis result for CH1 is indicated on the MEAS 1 display and that for CH2 on the MEAS 2 display.

• If an abnormality is found as a result of self-diagnosis, the error content is displayed after approx. 3 seconds.

• In case of more than one abnormality, error contents are displayed at 3-second intervals.

Error content display

Check items Display

CH1 OK (input abnormal) alarm HIGH CH2 OK (input abnormal) alarm HIGH CH1 OK(input abnormal) alarm LOW CH2 OK(input abnormal) alarm LOW

CH1 A/D input 5V side over CH2 A/D input 5V side over CH1 A/D input 0V side over CH2 A/D input 0V side over

SET

RES

CHK


-22-

7-3 DIP SWITCH SETTING

1) 1BY(1CH BYPASS) S.W. 2) 2BY(2CH BYPASS) S.W. 3) DBY(DANGER BYPASS) S.W. 4) MS1(MODE-SELECT1) S.W. (normally OFF) 5) MS2(MODE-SELECT2) S.W. 6) N·A(not available)

DIP Switches

1) 1BY (CH1 BYPASS) Switch

"ON" To select CH1 BYPASS function.

"OFF" Normal monitoring

2) 2BY (CH2 BYPASS) Switch

"ON" To select CH2 BYPASS function.


3) DBY (DANGER BYPASS) Switch

"ON" To select DANGER BYPASS function.


4) MS1 (MODE-SELECT1) Switch (normally OFF)

• Set normally to “OFF”. Parameter setting mode is disabled.

5) MS2 (MODE-SELECT2) Switch

“ON”

For setting the alarm reset mode, alarm delay time, alarm relay mode, first-out display,

and timed OK channel defeat.

Also enables setting the address when used in combination with the VM-5H3 or 5W1

Instrument Rack and VM-5P1,2 Communication/Phase Marker Unit or VM-53 Dual

Communication Unit. To PARAMETER SETTING 1.

“OFF”

For changing the set values for DANGER alarm and ALERT alarm, and GAP ALARM,

and adjusting measured value and recorder output zero span.

To PARAMETER SETTING 2.

OFF

ON

1 2

3 4

5 6


-23-

7-4 PARAMETER SETTING 1

7-4-1 PARAMETER SETTING 1

• Setting the parameters for alarm reset mode, alarm delay time, alarm relay mode,

first-out display, and timed OK channel defeat is enabled.

• Setting the address for use in combination with the VM-5H3 or VM-5W1 Instrument

Rack and VM-5P1,2 Communication/Phase Marker Unit or VM-53 Dual

Communication Unit is enabled.

7-4-2 MODE SELECT SWITCH SETTING

1)1BY(CH1 BYPASS) S.W. 2)2BY(CH2 BYPASS) S.W. 3) DBY(DANGER BYPASS) S.W. 4) MS1(MODE-SELECT1) S.W. (normally OFF) 5) MS2(MODE-SELECT2) S.W. 6) N·A(not available)

DIP switches

Confirm that the MS1 (MODE-SELECT1) switch is "OFF". Place the MS2 (MODE-SELECT2) switch in "ON" position.

• Setting other than the above are not enabled to set the parameters.

OFF

ON 1 2 3 4 5 6


-24-

7-4-3 DISPLAY SCREEN HIERARCHY

The flow chart shows the hierarchy of the PARAMETER SETTING 1 display.

1

CH2 OK alarm delay time set

CH1 DANGER alarm reset mode set

CH2 DANGER alarm reset mode set

CH1 ALERT alarm reset mode set

CH2 ALERT alarm reset mode set

CH1 OK alarm reset mode set

CH2 OK alarm reset mode set

CH1 DANGER alarm delay time set

CH2 DANGER alarm delay time set

CH1 ALERT alarm delay time set

CH2 ALERT alarm delay time set

CH1 OK alarm delay time set

2

PARAMETER SETTING 1


-25-

CH1 DANGER alarm relay mode set

CH2 DANGER alarm relay mode set

CH1 ALERT alarm relay mode set

CH2 ALERT alarm relay mode set

CH1 OK alarm relay mode set

Timed OK channel defeat set

Address set

First-out display set

1

2

Display only if used in combination with the VM-5Y3,4,5,6 Relay Module Unit.

CH2 OK alarm relay mode set


-26-

7-4-4 DISPLAY CONTENT

The characters and numerals indicated on the LCD display when setting the parameters represent

the following parameters and their status.

MEAS 1 .... Displays the parameters that can be set.

Display Parameter

CH1 DANGER alarm reset

CH2 DANGER alarm reset

CH1 ALERT alarm reset

CH2 ALERT alarm reset

CH1 OK alarm reset

CH2 OK alarm reset

CH1 DANGER alarm delay time

CH2 DANGER alarm delay time

CH1 ALERT alarm delay time

CH2 ALERT alarm delay time

CH1 OK alarm delay time

CH2 OK alarm delay time

CH1 DANGER alarm relay mode

CH2 DANGER alarm relay mode

CH1 ALERT alarm relay mode

CH2 ALERT alarm relay mode

CH1 OK alarm relay mode

CH2 OK alarm relay mode

First-out display

Timed OK channel defeat

Address (communication address ID (1 to 10))

LCD display

MEAS2

MEAS1

4

8

12

16

MEAS1MEAS2

0 0

20 20

40 40

60 60

80 80

100 %

100 %

%

%

MEAS 1


-27-

MEAS 2 .... Displays the status of each parameter.

Display Parameter status

LATCH self-hold

NON LATCH auto-reset Alarm delay time None

ENERGIZED ALARM (Normally DE-ENERGIZED)

DE-ENERGIZED ALARM (Normally ENERGIZED)

OFF

ON

Alarm delay time 1 sec.



LCD display

MEAS2

MEAS1

4

8

12

16

MEAS1MEAS2

0 0

20 20

40 40

60 60

80 80

100 %

100 %

%

%

MEAS 2


-28-

7-4-5 KEY OPERATIONS

The chart below describes the key operations for PARAMETER SETTING 1.

• The display is reset to normal if there is no key operation for approx. 60 sec.

LCD display

Proce-dure

Key operation MEAS 1 (Parameter)

MEAS 2 (Parameter

Status)

Remarks

1 Press SET key more than 5 sec.

Present status

Specify CH1 DANGER alarm reset mode.

2 Press UP or DOWN key.

Select latch or non-latch with UP or DOWN key.

3 Press SET key. Present status

Specify CH2 DANGER alarm reset mode.




Specify CH1 ALERT alarm reset mode.




Specify CH2 ALERT alarm reset mode.




Specify CH1 OK (input abnormal) alarm reset mode.




Specify CH2 OK (input abnormal) alarm reset mode.




Specify CH1 DANGER alarm delay time.

SET

SET

SET

SET

SET

SET

SET


-29-

LCD display

Proce-dure


MEAS 2 (Parameter

Status)

Remarks


Select NON (none), 1 sec., 3 sec., or 6 sec. with UP or DOWN key.


Specify CH2 DANGER alarm delay time.




Specify CH1 ALERT alarm delay time.




Specify CH2 ALERT alarm delay time.




Specify CH1 OK (input abnormal) alarm delay time.


Select NON (none) with UP or DOWN key.


Specify CH2 OK (input abnormal) alarm delay time.


Select NON (none) with UP or DOWN key.


Specify CH1 DANGER alarm relay mode.

• To set OK alarm delay time, select NON (none).

SET

SET

SET

SET

SET

SET


-30-

LCD display

Proce-dure


MEAS 2 (Parameter

Status)

Remarks

26

Press UP or DOWN key.

Select ENERGIZED or DEENERGIZED with UP or DOWN key.


Specify CH2 DANGER alarm relay mode.




Specify CH1 ALERT alarm relay mode.




Specify CH2 ALERT alarm relay mode.




Specify CH1 OK (input abnormal) alarm relay mode.




Specify CH2 OK (input abnormal) alarm relay mode.



• Procedures 35 and 36 are displayed only when using the monitor in combination

with the VM-5Y3,4,5,6 Relay Module Unit.

SET

SET

SET

SET

SET


-31-

LCD display

Proce-dure


MEAS 2 (Parameter

Status)

Remarks

37

Press SET key. Present

status Specify first-out display.

38


Select ON (enable) or OFF (disable) with UP or DOWN key.

39


status Specify timed OK channel defeat.

40


Select ON (enable) or OFF (disable) with UP or DOWN key.

41


status • Specify address.

42


•••

Select address between 1 and 10 with UP or DOWN key.

43


status Return to procedure 1.

• Make sure to assign a unique address for use with the VM-5P1,2 Communication/

Phase Marker Unit or VM-53 Dual Communication Unit and VM-5H3 or VM-5W1

Instrument Rack.

Same addres number is not allowed in the same rack.

• The display is reset to normal approx. 60 sec. after setting is completed.

SET

SET

SET

SET

Mandatory


-32-

7-5 PARAMETER SETTING 2

7-5-1 PARAMETER SETTING 2

• This chapter describes how to change the DANGER, ALERT and GAP alarm set

values and adjust measured value and recorder output zero span.

• For adjustment of measured value and recorder output zero span refer to page 43

"MAINTENANCE".

7-5-2 MODE SELECT SWITCH SETTING

1) 1BY(CH1 BYPASS) S.W. 2) 2BY(CH2 BYPASS) S.W. 3) DBY(DANGER BYPASS) S.W. 4) MS1(MODE-SELECT1) S.W. (normally OFF) 5) MS2(MODE-SELECT2) S.W. 6) N·A(not available)

DIP switches

Confirm that the MS1 (MODE-SELECT1) switch is "OFF". Place the MS2 (MODE-SELECT2) switch in "OFF" position.

• Setting other than the above are not enabled to set the parameters.

OFF

ON 1 2 3 4 5 6


-33-

7-5-3 DISPLAY HIERARCHY

The flow chart shows the hierarchy of the PARAMETER SETTING 2 display.

CH2 DANGER alarm Set range : 0 to 110% of monitor range or ineffective

CH1 ALERT alarm Set range : 0 to 110% of monitor range or ineffective

CH2 ALERT alarm Set range : 0 to 110% of monitor range or ineffective

CH1 GAP ALARM HIGH Set range : 0.0 to -20.0V or ineffective

CH2 GAP ALARM HIGH Set range : 0.0 to -20.0V or ineffective

CH1 GAP ALARM LOW Set range : 0.0 to -20.0V or ineffective

CH2 GAP ALARM LOW Set range : 0.0 to -20.0V or ineffective

CH1 DANGER alarm Set range : 0 to 110% of monitor range or ineffective

5

PARAMETER SETTING 2

Calibrate measured value

4 3

NO

YES

Refer to Maintenance for more detail.


-34-

3 4

5

CH1 measured value span adjustmentAdjustment range : ±5% of monitor range

CH2 measured value span adjustmentAdjustment range : ±5% of monitor range

CH1 recorder output zero adjustmentAdjustment range : ±5% of monitor range

CH2 recorder output zero adjustmentAdjustment range : ±5% of monitor range

CH1 recorder output span adjustmentAdjustment range : ±5% of monitor range

CH2 recorder output span adjustmentAdjustment range : ±5% of monitor range

CH1 100% measured value check




CH1 measured value display

CH2 measured value display

Suppression set Adjustment range : 0 to 10% of monitor range


-35-

7-5-4 DISPLAY CONTENT

The characters and numerals indicated on the LCD display when setting the parameters represent

the following parameters and their status.

MEAS 1····Displays the parameters that can be set.

Display Parameter

CH1 DANGER alarm set

CH2 DANGER alarm set

CH1 ALERT alarm set

CH2 ALERT alarm set

CH1 GAP ALARM HIGH set

CH2 GAP ALARM HIGH set

CH1 GAP ALARM LOW set

CH2 GAP ALARM LOW set





CH1 measured value span adjustment

CH2 measured value span adjustment

CH1 recorder output zero adjustment

CH2 recorder output zero adjustment

CH1 recorder output span adjustment

CH2 recorder output span adjustment

Suppression set

MEAS2

MEAS1

4

8

12

16

MEAS1MEAS2

0 0

20 20

40 40

60 60

80 80

100 %

100 %

%

%

MEAS 1

LCD display


-36-

MEAS 2 .... Displays the status of each parameter.

Display Parameter status

Disable

Error

• The limit value specified for DANGER alarm must be higher than that for ALERT

alarm.

• The limit value specified for GAP ALARM HIGH must be higher than that for LOW.

MEAS2

MEAS1

4

8

12

16

MEAS1MEAS2

0 0

20 20

40 40

60 60

80 80

100 %

100 %

%

%

MEAS 2

LCD display


-37-

7-5-5 KEY OPERATIONS

The chart below describes the key operations for PARAMETER SETTING 2.


LCD display

Proce-dure


MEAS 2 (Parameter

Status)

Remarks

1 Press SET key more than 5 sec.

Present status Specify CH1 DANGER alarm.

2 Press CHECK and UP or DOWN key.

0 to 110% of monitor range

Disabled

Fix digit with CHECK key and specify value with UP or DOWN key.

3 Press SET key. Present status Specify CH2 DANGER alarm.



Disabled


5 Press SET key. Present status Specify CH1 ALERT alarm.



Disabled


7 Press SET key. Present status Specify CH2 ALERT alarm.



Disabled


9 Press SET key. Present status Specify CH1 GAP ALARM HIGH.


0.0 to -20.0V

Disabled Specify value with UP or DOWN key.

11 Press SET key. Present status Specify CH2 GAP ALARM HIGH.

SET

CHK

SET

SET

CHK

SET

CHK

SET

SET

CHK


-38-

LCD display

Proce-dure


MEAS 2 (Parameter

Status)

Remarks

12 Press UP or DOWN key. 0.0 to -20.0V


13 Press SET key. Present status Specify CH1 GAP ALARM LOW.



15 Press SET key. Present status Specify CH2 GAP ALARM LOW.



Measured value calibration not carried out (proceed from procedure 18 to 25)

17 Press SET key. Present

measured value

CH1 measured value display.


measured value

CH2 measured value display.

Measured value calibration not carried out (after procedure 24, display moves on to procedure 25)

Refer to Maintenance for step 17 to step 36.


measured value

Specify CH1 20% measured value check.

18 Press CHECK key.

Present measured

value Check with CHECK key.

19 --- -------------- Present

measured value


20 Press CHECK key.

Present measured


21 --- -------------- Present

measured value


22 Press CHECK key.

Present measured


23 --- -------------- Present

measured value


24 Press CHECK key.

Present measured


CHK

SET

CHK

CHK

CHK

SET

SET

SET

SET


-39-

LCD display

Proce-dure


MEAS 2 (Parameter

Status)

Remarks


measured value

Specify CH1 measured value span adjustment.


±5% of monitor range

Set gain with CHECK key and adjust recorder output with UP or DOWN key.


measured value

Specify CH2 measured value span adjustment.


±5% of monitor range



measured value

Specify CH1 recorder output zero adjustment.


Present

measured value



measured value

Specify CH2 recorder output zero adjustment.


Present

measured value


33


measured value

Specify CH1 recorder output span adjustment.


Present

measured value



measured value

Specify CH2 recorder output span adjustment.

36 Press CHECK

and UP or DOWN key.

Present measured

value


37 Press SET key. Present status Specify suppression set value.

38 Press UP and DOWN key. 0 to 10% of

monitor range Specify value with UP or DOWN key.

39 Press SET key. Present status Return to procedure 1.


SET

SET

CHK

CHK

SET

CHK

SET

CHK

SET

CHK

CHK

SET

SET

SET

8. FUNCTIONAL DIAGRAM VM-5K

-40-

8-1 BLOCK DIAGRAM


-41-

8-2 FUNCTIONAL BLOCK DIAGRAM

1 Input amplifier

Buffer amplifier for input signals.

2 LPF

Cuts off the high frequency range.

3 HPF (Enabled for VM-5K, 5U, 5B and 5M)

Cuts off the low frequency range.

4 Integrator (Enabled for VM-5U, 5B and 5M)

Integrates the input signal to convert acceleration to velocity or velocity to displacement.

5 Output amplifier

Buffer amplifier for monitor output from the BNC connector on the monitor front panel and to

the terminal block on the rear panel (VM-5G Single Unit Instrument Rack, VM-5Y Relay

Module Unit).

6 Integrator (Enabled for VM-5T, 5D, 5N, 5E, 5A, 5L, 5J and 5C)

Integrates the PWM (pulse width modulation) signal, and converts it to a DC voltage

proportional to the measured value.

7 Zero shift

(Enabled for VM-5T, 5D, 5N, 5E, 5A, 5L and 5J. For VM-5C, only enabled on CH2.)

The input signal is zero-shifted by the DC voltage output from the integrator.

8 Programmable Gain Amplifier

Converts the input signal to the voltage level required by the detection circuit.

9 Detection circuit (Enabled for VM-5K, 5U, 5B and 5M)

Detects the input signal, and converts it to a DC voltage proportional to the vibration.

• P-P detection Peak-to-peak detection

• AVE detection Average value detection

• RMS detection (option) Effective value detection


-42-

10 Level adjustment

Converts the DC input voltage to the level required by the A/D converter.

11 A/D

10-bit A/D converter for conversion of analog to digital signals.

12 Counter (Enabled for VM-5C, 5 S, and 5R)

Counts the pulse input from the trigger card.

13 CPU

16-bit CPU used.

14 PWM

Performs pulse width modulation in proportion to the measured value.

15 SIO

Handles internal communication with the VM-5P1,2 Communication/Phase Marker Unit.

16 PIO

Inputs signals for key operations and remote contact input, and outputs signals for driving the

LCD cards and alarm relays.

17 Integrator

Integrates the PWM (pulse width modulation) signal, and converts it to a DC voltage

proportional to the measured value.

18 Output amplifier

Converts the output to the 1 to 5VDC or 4 to 20mA signal required for the recorder, etc.

19 Filter card (option)

Available as option, if a still sharper filter performance is required.

20 Trigger card (Enabled for VM-5C, 5 S, and 5R)

Converts the input signal to the pulse waveform.

21 Isolated output card, voltage conversion card (option)

(0 to -10VDC, 0 to +10VDC, 0 to -5VDC, 0 to +5VDC)

• Isolated output card :

This isolated output card is used for isolation from other circuits.

• Recorder option output card :

A recorder option output card for applications where an other than standard recorder output

is required.

9. MAINTENANCE VM-5K

-43-

9-1 RECOMMENDED MAINTENANCE EQUIPMENT The recommended maintenance equipment listed below should be used to perform the procedures

in this manual.

• Digital Multimeter (DMM)

Agilent Technologies 3466A or equivalent

• DC voltage generator

Yokogawa Electric Corporation 2554 or equivalent

• Function generator

Yokogawa FG-120 or equivalent

• Tester

• For alarm output wiring proceed as described in the instruction manuals for the

VM-5G Single Unit Instrument Rack and VM-5Y Relay Module Unit used in

combination with this monitor unit.


electric shock.

Mandatory

Warning


-44-

9-2 VERIFICATION OF OK (INPUT ABNORMAL ALARM) AND GAP ALARM OPERATION This clause is used to test the display of OK (INPUT ABNORMAL ALARM), GAP ALARM and contact output.

• Since OK (INPUT ABNORMAL ALARM) and GAP ALARM will be output during the test, open the circuit between the alarm contacts and the connected system if necessary.

• Set each Bypass Switch to “OFF” position.

• The machine is not protected during operation test.

• To verify OK ALARM contact operation on one channel, none of the other channels must be in alarm output condition, except when using the VM-5Y3,4,5,6 Relay Module Unit.

• ALERT alarm operates after the specified alarm delay time has elapsed.

9-2-1 INTERCONNECTION (ex. VM-5G SINGLE UNIT INSTRUMENT RACK) Connect a DC voltage generator to the input terminal of the VM-5G Single Unit Instrument Rack and check the circuit of OK, ALERT contact points.

• Connect to the input/output terminals of the channel under operation test. • Refer to “4. INTERCONNECTION” on page 4.

A8NCA9

DANA10NOA11NCA12ALEA13NOA14NCA15OKA16NOA17L1

A18L2A19FG

B8NCB9

DANB10NOB11NCB12ALEB13NOB14SEQB15COMB16P-SB17RESB18COMB19FLT

A1INA2

COMA3

PWRA4

RECA5

REC-A6

BUFA7

COM

B1INB2

COMB3

PWRB4

RECB5

RECB6

BUFB7

COM

VM-5G Single Unit Instrument Rack Input/output terminal block

DC voltage generator

Tester Tester

NC OK NO

NCALENO

IN COM.

Mandatory

Warning


-45-

9-2-2 VERIFICATION OF OPERATION

(1) OK (INPUT ABNORMAL ALARM) limit values

The OK (INPUT ABNORMAL ALARM) limit values vary with the type of the transducers.

The set voltages given in the table below apply in the case that the monitor is calibrated for the

sensitivity of the input transducer to the specific target.

A situation where the input voltage from transducers to monitors lies outside the LOW - HIGH

limit value range is interpreted as INPUT ABNORMAL by the OK (INPUT ABNORMAL

ALARM) function and will cause alarm output.

Table of OK (INPUT ABNORMAL ALARM) limit values

Input transducer LOW limit

(VDC) HIGH limit

(VDC) Note Target material

-1.4 -18.8 --- VK-202A FK-202F -1.4 -17.0 Barrier used

-1.4 -18.0 --- VK-302P

-1.4 -15.4 Barrier used

SCM440

VC --- +5.5 --- ---

(2) GAP alarm limit values

The unit is shipped with the GAP alarm disabled. Set the GAP alarm HIGH limit to -13.0V and

the LOW limit to-5.0V referring to 7. PARAMETER SETTING on page 20. If the input

voltage of the unit lies outside the specified LOW/HIGH range, GAP alarm is output after

elapse of the delay time specified for ALERT alarm.

• The LOW/HIGH limit values used for the operation test here are random values.

(3) Reference Voltage Input

Apply the voltage given in the table below by means of a DC voltage generator.

Release OK (INPUT ABNORMAL ALARM) by resetting the key more than 15 sec. after the

reference voltage was applied (in self-holding alarm reset mode).

In auto-reset mode, OK is reset automatically after approx. 15 sec.

Reference voltage table

Input transducerReference voltage

(VDC)

VK,FK Series -9.0

VC Series +2.5

• The reference voltages used for the operation test here are random values.


-46-

(4) Testing GAP ALARM HIGH limit operation

Adjust the voltage of the DC voltage generator until it is close to the HIGH limit value.

Increase the voltage to a value above the HIGH limit and verify that ALERT alarm operates

after elapse of the specified ALERT alarm delay time. At the same time, test the ALERT alarm

contact points for connection. Next apply the reference voltage and verify that ALERT alarm is

released when the key is reset (in self-holding alarm reset mode).

In auto-reset mode, ALERT alarm is reset automatically.

(5) Testing GAP ALARM LOW limit operation

Adjust the voltage of the DC voltage generator until it is close to the LOW limit value.

Decrease the voltage to a value below the LOW limit and verify that ALERT alarm operates

after elapse of the specified ALERT alarm delay time. At the same time, test the ALERT alarm

contact points for connection. Next apply the reference voltage and verify that ALERT alarm is

released when the key is reset (in self-holding alarm reset mode).

In auto-reset mode, ALERT alarm is reset automatically.

(6) Testing OK (input abnormal alarm) HIGH limit operation

Adjust the voltage of the DC voltage generator until it is close to the HIGH limit value.

Increase the voltage to a value above the HIGH limit and verify that OK alarm operates after

elapse of the specified OK alarm delay time. At the same time, test the OK contact points for

connection. Next apply the reference voltage and verify that OK (input abnormal alarm) is

released when the key is reset after more than 15 sec. (in self-holding alarm reset mode).


(7) Testing OK (input abnormal alarm) LOW limit operation

Adjust the voltage of the DC voltage generator until it is close to the LOW limit value.

Decrease the voltage to a value below the LOW limit and verify that OK alarm operates after

elapse of the specified OK alarm delay time. At the same time, test the OK contact points for

connection. Next apply the reference voltage and verify that OK (input abnormal alarm) is

released when the key is reset after more than 15 sec. (in self-holding alarm reset mode).



-47-

9-3 VERIFICATION OF DANGER (DAN)/ALERT (ALE) ALARM OPERATION This clause is used to test the display and contact output of DANGER (DAN)/ALERT (ALE) alarm.

• Since DANGER (DAN)/ALERT (ALE)/OK alarm will be output during the test, open the circuit between the alarm contacts and the connected system if necessary.

• Set each Bypass Switch to “OFF” position. • When mounting this monitor unit in VM-5H3 or VM-5W1 Instrument Rack, set the

DANGER Bypass switch to “DISABL” position.


• DANGER (DAN)/ALERT (ALE) alarm operates after the specified alarm delay time has elapsed.

9-3-1 INTERCONNECTION (ex. VM-5G SINGLE UNIT INSTRUMENT RACK) Connect a DC voltage generator and a function generator to the input/output terminals of the VM-5G Single Unit Instrument Rack and test for connection between the DANGER (DAN) / ALERT (ALE) alarm output terminals.

• Connect to the input/output terminals of the channel under operation test. • Refer to “4. INTERCONNECTION” on page 4.

A8NCA9


A18L2A19FG

B8NCB9


A1INA2

COMA3

PWRA4

RECA5

REC-A6

BUFA7

COM

B1INB2

COMB3

PWRB4

RECB5

RECB6

BUFB7

COM

VM-5G Single Unit instrument Rack Input/output terminal block


Tester Tester

NC ALE NO

DANNOFunction generator

IN COM.

NC

Mandatory

Warning


-48-


(1) Input of Reference Voltage and Reference Sine Wave The reference sine wave voltage varies with on the input range of the transducer and the measurement range. Please refer to the reference sine wave voltage and frequency indicated on the monitor name plate attached LCD cover.

Reference Voltage and Reference Sine Wave Input Voltage

Reference Sine Wave Voltage Reference Voltage

At 100% input At 0% input Reference Sine

Wave Frequency New Model Code No.

(VDC) (mVrms) (mVrms) (Hz) VM-5K-11 -9±1 Shown on name plate 0.0 30±5 VM-5K-12 -9±1 Shown on name plate 0.0 50±5 VM-5K-13 -9±1 Shown on name plate 0.0 100±5 VM-5K-14 -9±1 Shown on name plate 0.0 100±5 VM-5K-15 -9±1 Shown on name plate 0.0 100±5

Input accuracy ±0.1% of F.S.

(2) Resetting OK (input abnormal alarm) Input the reference voltage from the DC voltage generator. (The corresponding reference sine wave voltage is 0.0mVrms.) Reset more than 15 sec. after input of the reference voltage to release OK (INPUT ABNORMAL ALARM) (in self-holding alarm reset mode). In auto-reset mode, OK is reset automatically after approx. 15 sec.

(3) Verification of Alarm Operation Gradually increase the voltage input from the function generator. Verify that ALERT (ALE) alarm is output after elapse of the preset alarm delay time, when the input value exceeds the ALERT (ALE) alarm set value. At the same time, verify operation by testing the ALERT (ALE) alarm contact points for connection with a tester. Continue to increase the input voltage. Verify that DANGER (DAN) alarm is output after elapse of the preset alarm delay time, when the input exceeds the DANGER (DAN) alarm set value. At the same time, verify operation by testing the DANGER (DAN) alarm contact points for connection with a tester.

(4) Alarm Reset Once the DANGER (DAN) alarm limit value has been exceeded, gradually decrease the reference sine wave input voltage. When the input voltage is below the DANGER (DAN) alarm set value, reset to verify that ALERT (ALE) alarm output is released (in self-holding alarm reset mode). In auto-reset mode, the alarm is reset automatically. Continue to decrease the input voltage. When the input voltage is below the ALERT (ALE) alarm set value, reset to verify that ALERT (ALE) alarm is released (in self-holding alarm reset mode). In auto-reset mode, the alarm is reset automatically.


-49-

9-4 VERIFICATION OF MEASURED VALUE AND RECORDER OUTPUT This clause is used to test the measured value and recorder output.

• Since DANGER(DAN)/ALERT(ALE)/OK alarm will be output during the test, open

the circuit between the DANGER(DAN)/ALERT(ALE)/OK alarm contacts and the

connected system if necessary.

• Bypass DANGER alarm output by setting the DANGER Bypass Switch to "ON"

position.

• When mounting this monitor unit in the VM-5H3 or VM-5W1 Instrument Rack, set

the DANGER Bypass switch to “ENBL” position.


9-4-1 INTERCONNECTION (ex. VM-5G SINGLE UNIT INSTRUMENT RACK)

Connect a DC voltage generator and a function generator to the input/output terminals of the

VM-5G Single Unit Instrument Rack and measure the recorder output with a DMM.

• Connect to the input/output terminals of the channel under operation test.

• Refer to “4. INTERCONNECTION” on page 4.

Mandatory

Warning

A8NCA9


A18L2A19FG

B8NCB9


A1INA2

COMA3

PWRA4

RECA5

REC-A6

BUFA7

COM

B1INB2

COMB3

PWRB4

RECB5

RECB6

BUFB7

COM



Function generator

IN COM.

DMM

REC+ REC-


-50-


(1) Input of Reference Voltage and Reference Sine Wave Refer to P48 "9-3-2 (1) Input of Reference Voltage and Reference Sine Wave"

(2) Resetting OK (input abnormal alarm) Refer to P48 "9-3-2 (2) Resetting OK (input abnormal alarm)"

(3) Verification of Measured Value Read the measured value on the LCD display, and verify that it agrees with the input value from the function generator and lies within the tolerance range.

(4) Verification of Recorder Output Measure the recorder output with a DMM, and verify that it agrees with the input value from the function generator and lies within the tolerance range.


-51-

9-5 ADJUSTMENT OF MEASURED VALUE AND RECORDER OUTPUT ZERO SPAN This clause is used to adjust the measured value and recorder output.

• Since DANGER(DAN)/ALERT(ALE)/OK alarm will be output during the test, open

the circuit between the DANGER(DAN)/ALERT(ALE)/OK alarm contacts and the

connected system if necessary.

• Bypass DANGER alarm output by setting the DANGER Bypass Switch to "ON"

position.

• When mounting this monitor unit in the VM-5H3 or VM-5W1 Instrument Rack, set

the DANGER Bypass switch to “ENBL” position.


9-5-1 INTERCONNECTION (ex. VM-5G SINGLE UNIT INSTRUMENT RACK)

Connect a DC voltage generator and a function generator to the input terminal of the VM-5G

Single Unit Instrument Rack and measure the recorder output with a DMM.

• Connect to the input/output terminals of the channel being adjusted.

• Refer to “4. INTERCONNECTION” on page 4.

Mandatory

Warning

A8NCA9


A18L2A19FG

B8NCB9


A1INA2

COMA3

PWRA4

RECA5

REC-A6

BUFA7

COM

B1INB2

COMB3

PWRB4

RECB5

RECB6

BUFB7

COM



Function generator

IN COM.

DMM

REC+ REC-


-52-

9-5-2 ADJUSTMENT

(1) Input of Reference Voltage and Reference Sine Wave Refer to P48 "9-3 –2 (1) Input of Reference Voltage and Reference Sine Wave"

(2) Resetting OK (input abnormal alarm) Refer to P48 "9-3-2 (2) Resetting OK (input abnormal alarm)"

(3) Measured value check Display 20% MEASURED VALUE CHECK referring to page 32 "7-5 PARAMETER SETTING 2", and make the reference sine wave input voltage from the function generator 20%. Then press the CHECK key. Next display 100% MEASURED VALUE CHECK, and make the reference sine wave input voltage from the function generator 100%. Then press the CHECK key.

• If error is displayed, verify the input voltage value.

(4) Measured value span adjustment Display MEASURED VALUE SPAN ADJUSTMENT referring to page 32 "7-5 PARAMETER SETTING 2", and make the reference sine wave input voltage from the function generator 100%. Then use the UP, DOWN and CHECK keys to adjust the MEAS 2 display to 100% of the meter scale. Finalize the adjustment by pressing the SET key. Adjustable range is ±5% of monitor range.

(5) Recorder output zero adjustment Display RECORDER OUTPUT ZERO ADJUSTMENT referring to page 32 "7-5 PARAMETER SETTING 2", and make the reference sine wave input voltage from the function generator 0%. Then use the UP, DOWN and CHECK keys to adjust the recorder output measured with the DMM to 0% of output value. Finalize the adjustment by pressing the SET key. Adjustable range is ±5% of monitor range.

• 0% output is 1V if the recorder output specifications is 1 to 5VDC, or 4mA if it is 4 to 20mADC.

• MEAS 2 indicates the measured value.

(6) Recorder output span adjustment Display RECORDER OUTPUT SPAN ADJUSTMENT referring to page 32 "7-5 PARAMETER SETTING 2", and make the reference sine wave input voltage from the function generator 100%. Then use the UP, DOWN and CHECK keys to adjust the recorder output measured with the DMM to 100% of output value. Finalize the adjustment by pressing the SET key. Adjustablet range is ±5% of monitor range.

• 100% output is 5V if the recorder output specifications is 1 to 5VDC, or 20mA if it is 4 to 20mADC.

• MEAS 2 indicates the measured value.


-53-

9-6 REPLACEMENT OF ALUMINUM ELECTROLYTIC CAPACITOR

• Aluminum electrolytic capacitors are used on the main board, which have a limited

life. Their service life varies according to the conditions of use, but for preventive

maintenance it is recommended to check the capacitors listed below in 5-year cycles

for characteristic deterioration and replace them as necessary.

Replacement by SST is recommended.

Main Board

Component Type Manufacturer Q’ty

Aluminum electrolytic capacitor C206, C207, C208

UPJ1E101M Nichicon 3

Isolation Card


Aluminum electrolytic capacitor C1

UPJ1C471M Nichicon 1

Seismic / pipe filter


Aluminum electrolytic capacitorC1P, C2P, C3P

UPJ1V101M Nichicon 3

• To remove or install the monitor, proceed according to the instruction manual of the

instrument rack. Failure to turn off the power before pulling the monitor unit out of, or

inserting it into the rack will result in serious damage and accidents.

• Do not touch the main board with bare hands.

Mandatory

Prohibition


-54-

9-7 REPLACEMENT OF LCD UNIT

• An LCD unit is used on the face plate, which have a limited life. Their service life varies according to the conditions of use, but for preventive maintenance it is recommended to check the LCD listed below in 5-year cycles for characteristic deterioration and replace them as necessary. Replacement by SST is recommended.


LCD unit with Acrylic cover 1902BHS SHINKAWA Sensor Technology, Inc. 1

• To remove or install the monitor, proceed according to the instruction manual of the instrument rack. Failure to turn off the power before pulling the monitor unit out of, or inserting it into the rack will result in serious damage and accidents.

• Do not touch the main board and LCD unit board with bare hands.

1 Pull out the monitor unit. 2 Disconnect the connector of the flat cable connecting the LCD unit to the main board.

Unlock two locks at the top and bottom of the connector.

3 Take out three screws fixing the LCD unit to the face plate. The acrylic covers and sleeves will come off at the same time.

4 Replace the LCD unit by reversing the above sequence.

• Confirm that connector is connected firmly.

Caution

Prohibition

Caution

Monitor unit

Acrylic cover

Sleeve

LCD unit

Main board (soldered side)

Main board (soldered side)

Lock

Lock

Connector

Monitor unit


-55-

9-8 LCD CONTRAST ADJUSTMENT

• The LCD contrast volume is located on the back of the face plate (LCD Unit). Pull

out the face plate referring to “7. PARAMETER SETTING” on page 19.


Use a small flat blade screwdriver to set the LCD contrast volume (VR1) on the LCD unit to the

desired contrast level.

• Be noted that the characteristic of LCD contrast adjustment is as follows.

Mandatory

Prohibition

1 turn

Contrast

Back of face plate LCD Unit

Flat blade screwdriver

VR

1


-56-

9-9 LCD BACKLIGHT ADJUSTMENT

• The LCD backlight volume is located on the back of the face plate (LCD Unit). Pull

out the face plate referring to “7. PARAMETER SETTING” on page 19.


Use a small flat blade screwdriver to set the LCD backlight volume (VR2) on the LCD unit to the

desired brightness level.

Back of face plate LCD Unit

Flat blade screwdriver

VR

1

VR

2

Mandatory

Prohibition

10. TROUBLESHOOTING VM-5K

-57-

10-1 LCD DISPLAY CONTENT ABNORMAL

Start

Display is blank.

Is power supply on?

Are connections to

power supply terminals correct?

Turn on power supply again.

Is display normal?

OK

Turn on power supply.

Connect correctly.

Perform LCD contrast adjustment.

Is display normal?

OK

Repair VM-5.

Display is abnormal.

YES

NO

YES

YES

NO

NO

YES

NO

Is Main board inserted firmly to

the rack?

Is LCD connector inserted

firmly?

Insert Main board firmly by pushing Main board frame.

Insert LCD connector firmly.

YES

NO

YES

NO


-58-

10-2 OK DISPLAY FLASHES

Display

Display

Display

Display

Start

Wait approx.15 sec., then reset key.

Did flashing stop?

Run self-diagnosis (press CHK key).

Diagnostic findings OK?

Repair VM-5.

OK

Check input voltage of monitor.

NO

YES

YES

NO Sensor wire breakage, sensor gap too lage.

Sensor short-circuit, sensor gap too small.

Input is outside input range of built-in A/D converter (H or 5V end).

Input is outside input range of built-in A/D converter (L or 0V end).

Check input voltage of monitor.


the rack?


NO

YES

Check sensor set gap and cable between sensor and monitor

Check sensor set gap and cable between sensor and monitor


-59-

10-3 MEASURED VALUE ABNORMAL

Start

Is gap voltage normal?

Check transducer characteristic.

Check transducer.

YES

NO

Repair VM-5.

Check sensor, cable and driver connection.

Check signal cable and connection.

Check sensor set gap.


the rack?


YES

NO


-60-

10-4 OK (INPUT ABNORMAL ALARM) DOES NOT OPERATE

10-5 ALERT (ALE) ALARM DOES NOT OPERATE

Start

Is channel bypass in operation?

Release channel bypass.

YES

NO

Repair VM-5.

Start

Is sequence circuit n

operation?

Release sequence circuit.

YES

NO

Is alarm limit value set

within measurementrange?



Repair VM-5.

Set within measurement range.

NO

NO

YES

YES


-61-

10-6 DANGER (DAN) ALARM DOES NOT OPERATE

10-7 ERRONEOUS OPERATION OF DANGER (DAN) / ALERT (ALE) ALARM

Start

Noise countermeasures.

Increase alarm delay time.

Erroneous operation due to noise.

Is alarm limit value set

within measurementrange?

Start

Is sequence circuit in peration?

Release sequence circuit.

YES

NO

Is DANGER bypass in operation?

Release DANGER bypass.

Set within measurement range.

NO

NO

YES

YES

DANGER alarm in operation?

YES

YES

OK



NO

YES

Repair VM-5.


-62-

10-8 NO RECORDER OUTPUT

10-9 GAP ALARM DOES NOT OPERATE

Start

Are output terminals connected

correctly?

Repair VM-5.

YES

NO Connect correctly.

Start



YES

NO Set within measurmeent range.

Is alarm set value within measurement

range?

Repair VM-5.

NO

YES

Warranty

The warranty period for the delivered product shall be 3 years from the date of delivery from

our factory. But the warranty period for the special order product and software shall be 1 year,

and for the repairing parts shall be 6 months. In the event that the delivered product develops

any defects within the warranty period for which Shinkawa Electric is liable, the defective part

will be replaced or repaired in our factory at our own expense.

In the event that an engineer needs to be dispatched for repair purposes during the warranty

period, travel expenses for the said engineer will be changed in accordance with the above

item. The cost of repair will be borne by Shinkawa Electric.

However, the following are excluded from our warranty:

(1) Any defects due to improper handling or operation by the user.

(2) Any defects, the case of which is not attributable to Shinkawa Electric.

(3) Any modifications or repairs made by others then Shinkawa Electric or persons

commissioned by Shinkawa Electric.

(4) Any handling, storage and operation under severe environmental conditions that exceed

the design specifications.

(5) Any defects due to fire, flood, earthquake, lightning and other Acts of God.

(6) The consumables

(7) Other defects considered not to be attributable to Shinkawa Electric.

This warranty applies exclusively to the delivered product units.

Shinkawa Electric will not be held liable for consequential damage caused either directly or

indirectly through a defect of the delivered product.

The warranty period and scope of machinery and equipment made by manufacturers other

than Shinkawa Electric shall be in accordance with the conditions of the respective

manufacturer, regardless of the provisions made above.

Hiroshima Factory4-22 Yoshikawa-kogyodanchi, Higashi-hiroshima 739-0153, JapanTel. +81-82-429-1118 Fax. +81-82-429-0804 [Field support & Repair Dept] E-Mail : [email protected]

VM-5 SERIES MONITOR MODEL VM-5K DUAL · PDF fileMANUAL NO. 29503E4.2 Published in Jun.1996...

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Transcript of VM-5 SERIES MONITOR MODEL VM-5K DUAL · PDF fileMANUAL NO. 29503E4.2 Published in Jun.1996...