Shinkawa VM-5 User manual

MANUAL NO. 29602E4.7
Published in Apr.1996
Revised in Feb.2012
VM-5 SERIES MONITOR
MODEL VM-5S DUAL TACHOMETER
INSTRUCTION MANUAL
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SAFETY CONVENTIONS VM-5S
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.

SAFETY CONVENTIONS VM-5S
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
WARNING Indicates 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.

SAFETY CONVENTIONS VM-5S
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
PROHIBITION
PROHIBITION
PROHIBITION
PROHIBITION
PROHIBITION
PROHIBITION
MANDATORY
MANDATORY
MANDATORY

SAFETY CONVENTIONS VM-5S
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.
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) ZCAT3050-1330 : TDK
MANDATORY
MANDATORY
MANDATORY
MANDATORY
MANDATORY
PROHIBITION
PROHIBITION

TABLE OF CONTENTS VM-5S
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 -------------------------------------------------------------------------------------- 19
5-2 SPEED RELAY FUNCTIONS ------------------------------------------------------------ 19
5-3 OK(INPUT ABNORMAL)ALARM -------------------------------------------------------- 19
5-4 FIRSTOUT DISPLAY ----------------------------------------------------------------------- 20
5-5 BYPASS FUNCTION-------------------------------------------------------------------------- 20
5-6 POWER ON TIMER MODE -------------------------------------------------------------- 20
5-7 OK ALARM / SPEED RELAY MODE -------------------------------------------------- 21
5-8 OK ALARM / SPEED RELAY RESET MODE --------------------------------------- 21
5-9 MONITOR OUTPUT / PULSE OUTPUT ---------------------------------------------- 21
5-10 RECORDER OUTPUT------------------------------------------------------------------------ 21
5-11 SELF-DIAGNOSTIC FUNCTION ------------------------------------------------------- 21
5-12 POWER SEQUENCE ---------------------------------------------------------------------- 22
5-13 TIMED OK CHANNEL DEFEAT --------------------------------------------------------- 22
5-14 TRIGGER FUNCTION --------------------------------------------------------------------- 22
5-15 PEAK HOLD FUNCTION ------------------------------------------------------------------ 22
6. DESCRIPTION OF PARTS
6-1 DESCRIPTION OF FRONT PANEL/SIDE VIEW ----------------------------------- 23
6-2 DESCRIPTION OF PARTS --------------------------------------------------------------- 24
6-3 DESCRIPTION OF LCD DISPLAY ----------------------------------------------------- 25

TABLE OF CONTENTS VM-5S
vi
7. PARAMETER SETTING
7-1 WITHDRAWAL OF FACE PLATE ------------------------------------------------------ 26
7-2 BASIC KEY OPERATIONS --------------------------------------------------------------- 28
7-3 DIP SWITCH SETTING -------------------------------------------------------------------- 29
7-4 PARAMETER SETTING 1 ---------------------------------------------------------------- 30
7-5 PARAMETER SETTING 2 ---------------------------------------------------------------- 39
7-6 TRIGGER LEVEL AND HYSTERESIS ------------------------------------------------ 47
7-7 GEAR TOOTH FORM SUITABLE FOR DETECTION ----------------------------- 49
7-8 TRIGGER MODE SELECTION ---------------------------------------------------------- 51
7-9 AUTO TRIGGER MODE SELECTION ------------------------------------------------ 52
7-10 MANUAL TRIGGER MODE SELECTION -------------------------------------------- 53
7-11 DETERMINATION OF HYSTERESIS ------------------------------------------------- 54
7-12 HYSTERESIS SETTING ------------------------------------------------------------------ 55
7-13 MONITOR OUTPUT / PULSE OUTPUT SELECTION ---------------------------- 56
7-14 SPEED RELAY HYSTERESIS ---------------------------------------------------------- 57
8. FUNCTIONAL DIAGRAM
8-1 BLOCK DIAGRAM -------------------------------------------------------------------------- 58
8-2 FUNCTIONAL BLOCK DIAGRAM ------------------------------------------------------ 59
9. MAINTENANCE
9-1 RECOMMENDED MAINTENANCE EQUIPMENT ------------------------------------ 61
9-2 VERIFICATION OF OK(INPUT ABNORMAL ALARM) OPERATION --------- 62
9-3 VERIFICATION OF SPEED RELAY OPERATION --------------------------------- 64
9-4 VERIFICATION OF MEASURED VALUE AND RECORDER OUTPUT ------ 66
9-5 ADJUSTMENT OF MEASURED VALUE AND
RECORDER OUTPUT ZERO SPAN ---------- 68
9-6 REPLACEMENT OF ALUMINUM ELECTROLYTIC CAPACITOR ------------- 71
9-7 REPLACEMENT OF LCD UNIT --------------------------------------------------------- 72
9-8 LCD CONTRAST ADJUSTMENT ------------------------------------------------------- 73
9-9 LCD BACKLIGHT ADJUSTMENT ------------------------------------------------------ 74
10. TROUBLESHOOTING
10-1 LCD DISPLAY CONTENT ABNORMAL ---------------------------------------------- 75
10-2 OK DISPLAY FLASHES ------------------------------------------------------------------- 76
10-3 MEASURED VALUE ABNORMAL ------------------------------------------------------ 77
10-4 SPEED RELAY DOES NOT OPERATE ---------------------------------------------- 78
10-5 ERRONEOUS OPERATION OF SPEED RELAY ---------------------------------- 79
10-6 OK (INPUT ABNORMAL) ALARM DOES NOT OPERATE ---------------------- 79
10-7 NO RECORDER OUTPUT --------------------------------------------------------------- 79
11. SITE INSPECTION
11-1 VERIFICATIONS IN STOPPED CONDITION --------------------------------------- 80
11-2 VERIFICATION IN TURNING CONDITION ------------------------------------------ 81
11-3 VERIFICATIONS DURING OPERATION --------------------------------------------- 82
11-4 CHECKS PRIOR TO OPERATION ----------------------------------------------------- 83

1. GENERAL INFORMATION VM-5S
-1-
OVERVIEW
This is a highly reliable monitor which monitors the rotative speed and zero speed of the rotor.
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. It is also possible to set a speed comparison value for comparison with
the rotation speed (including zero speed). It has a built-in self-diagnostic function to inform the
operator of input transducer failures.
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.
• When a zero-speed system is designed using this VM-5S Dual Tachometer, avoid
performing control only by using SHINKAWA system, and always add other
condition to this system by using other kind of detection system. If control is
performed only by using this VM-5S Dual Tachometer, it may result in critical
damage on the machine when the monitor or transducer fails or an imperfect
connection to the sensor occurs.
Therefore, as shown in the figure , for reliability and safety, the system should be
designed with other stop conditions as redumdancy (example: combination of
low-revolution speed relay contact and timer until stop)
• For zero-speed monitoring, use an RD tacho driver or FK driver that is capable of
detecting imperfect connections, and specify “Manual” trigger mode.
• In the case of the input signal from a magnetic pickup, the output voltage (pk-pk) of
the magnetic pickup varies depending on the size of gear teeth, the set gap, rotation
speed, etc., and under certain conditions may become high voltage. Therefore, stay
within a range in which the output voltage of the magnetic pickup does not exceed
the monitor input voltage range (100Vpk-pk)
Mandatory
Caution
RS Sensor RD Tacho Driver
FL Sensor FK Driver
VM-5S
Speed relay contact signal output
Zero s
p
eed detectin
g
s
y
stem.
Zero speed
interlock circuit
*
AND
SHINKAWA System

2. SPECIFICATIONS VM-5S
-2-
Monitor range Input signal Recorder output Relay output
1 to 1,000rpm 1 VK,RD,FK Series*1 0 4 to 20mADC
2 to 2,000rpm 2 VE Series*2 1 1 to 5VDC 1CH1 : 4 points (SR1,SR2,SR3,SR4)
SR1,SR2,SR3,SR4 Individual output 6 CH1 : 2 points (SR1,SR2) CH2 : 2 points (SR3,SR4)
SR1,SR3 OR output SR2,SR4 OR output
3 to 5,000rpm 3 MS Series*3
4 to 10,000rpm 4 VC Series*2 2CH1 : 2 points (SR1,SR2) CH2 : 2 points (SR3,SR4)
SR1,SR3 Individual output SR2,SR4 Individual output 7 CH1 : 2 points (SR1,SR2) CH2 : 2 points (SR3,SR4)
SR1,SR3 OR output SR2,SR4 AND output
5 to 15,000rpm
2
Output card
/ISor /RE
option
6 to 20,000rpm 3CH1 : 2 points (SR1,SR2) CH2 : 2 points (SR3,SR4)
SR1,SR3 Individual output SR2,SR4 OR output 8 CH1 : 2 points (SR1,SR2) CH2 : 2 points (SR3,SR4)
SR1,SR3 AND output SR2,SR4 Individual output
7 to 30,000rpm
8 to 50,000rpm 4CH1 : 2 points (SR1,SR2) CH2 : 2 points (SR3,SR4)
SR1,SR3 Individual output SR2,SR4 AND output A CH1 : 2 points (SR1,SR2) CH2 : 2 points (SR3,SR4)
SR1,SR3 AND output SR2,SR4 OR output
A to 99,999rpm
5CH1 : 2 points (SR1,SR2) CH2 : 2 points (SR3,SR4)
SR1,SR3 OR output SR2,SR4 Individual output B CH1 : 2 points (SR1,SR2) CH2 : 2 points (SR3,SR4)
SR1,SR3 AND output SR2,SR4 AND output
Speed relay
type
(SR1)
Speed relay
type
(SR2)
Speed relay
type
(SR3)
Speed relay
type
(SR4)
Hysterisis set value
(shaped waveform circuit)
(CH1)
Hysterisis set value
(shaped waveform circuit)
(CH2)
Alarm reset
(SR1)
Alarm reset
(SR2)
Alarm reset
(SR3)
Alarm reset
(SR4)
Alarm reset
(OK)
0 1.0V 0 1.0V 0 AUTO-RESET 0 AUTO-RESET 0 AUTO-RESET 0 AUTO-RESET 0 AUTO-RESET
0 Over
speed 0 Over
speed 0Over
speed 0 Over
speed 1 0.1V 1 0.1V 1 SELF-HOLD 1 SELF-HOLD 1 SELF-HOLD 1 SELF-HOLD 1 SELF-HOLD
2 0.2V 2 0.2V1 Under
speed 1 Under
speed 1Under
speed 1 Under
speed 3 0.5V 3 0.5V
Relay mode
(SR1)
Relay mode
(SR2)
Relay mode
(SR3)
Relay mode
(SR4)
Relay mode
(OK)
First
output*4
Trigger
mode*5
Monitor/pulse
output Isolate output Recorder option
output
Input power supply
requirements
Tropical
spec.
CE
marking
0 OFF 0 AUTO 0 4 to 20mADC 2 0 to -10VDC 0 85 to 264VAC
0 NORMALLY
DE-ENERGIZED 0 NORMALLY
DE-ENERGIZED 0 NORMALLY
DE-ENERGIZED 0NORMALLY
DE-ENERGIZED 0NORMALLY
DE-ENERGIZED 1ON1MANUAL
0Pulse
output 1 1 to 5VDC 3 0 to 10VDC 1 24VDC
2 0 to -10VDC 4 0 to -5VDC 2 110VDC
1 NORMALLY
ENERGIZED 1 NORMALLY
ENERGIZED 1 NORMALLY
ENERGIZED 1NORMALLY
ENERGIZED 1NORMALLY
ENERGIZED
1Monitor
output 3 0 to 10VDC 5 0 to 5VDC
40to-5VDC
50to5VDC
SPEED RELAY SET POINT 4 points (SR1,SR2,SR3,SR4)
SPEED RELAY SET
RANGE
More than 1rpm : Speed relay can be set in 1 rpm increments until
110% of monitor range
Less than 1rpm :Speed relay can be set in 0.1 rpm increment
INPUT
SPEED/INDICATED
SPEED CHANGED
RATIO
(NON-STANDARD
SPECIFICATION)
If the indicated rotation speed is different from the input rotation
speed, enter into the space below.
Input ratio speed rpm rpm
In case of a magnification more than 1, the resolution
deteriorates in proportion to the magnification factor.
SPEED RELAY SET ACCURACY
±1 digit or less(on digital indicator)
SPEED RELAY OUTPUT 4 points (SR1,SR2,SR3,SR4)
ALARM OUTPUT 1 points (OK) or 2 points (OK1,OK2)
ROTOR SPEED LCD digital meter with 5 digits (7 segments, with back light)
LCD bar graph meter (40 segments, with back light)
SPEED RELAY
INDICATOR
SR1,SR3 : (yellow LED)
SR2,SR4 : (red LED)
SPEED RELAY SET
VAL UE SR1 :
SR2 :
SR3 :
SR4 :
SR2 ≥SR1 SR4 ≥SR3
(SR2 ≤SR1 SR4 ≤SR3 in case of both under speed)
Preset to 50% of monitor range unless specified otherwise.
ABNOR. ALARM INDICATOR OK : (greenLED)
BYPASS INDICATOR BYPASS :(red LED)
TRANSDUCER INPUT VK, RD,FK Series, VE Series, MS Series, VC Series
Number of input points : 2 points
INPUT IMPEDANCE Approx.5kΩ
INPUT VOLTAGE Min.:2Vpk-pk, Max.:100Vpk-pk
MIN. PULSE WIDTH Approx.50µsec
MIN. INDICATED FREQUENCY Lower of 1Hz or under speed setting.
MAX. INPUT FREQUENCY 10kHz
NO. OF INPUT PULSE 1 to 120 pulse
SPEED RELAY
HYSTERESIS
Speed relay hysteresis can be specified from 0 to 100rpm. (1rpm step)
SR1 :
SR2 :
SR3 :
SR4 :
Preset to 10rpm unless specified otherwise.
NO. OF INPUT P/R Can be specified from 1 to 120 pulse.
Pulses/rev. :
TRIGGER MODE AUTO, MANUAL (selectable)
In case of auto trigger mode, input pulse duty ratio should be
between 10 and 90% and input pulse frequency should be 1Hz and
over. it depends on the target.
EXTERNAL CONTACT INPUT
(FROM REAR PANEL)
Contact type : Dry contact
Contact for external reset
DIGITAL METER ±(0.003% of rdg. +1 digit) at 25°C(77°F)
±(0.03% of rdg.+1 digit) at 0 to 65°C(32 to 149°F)
BAR GRAPH METER ±2.5% of F.S.
RECORDER OUTPUT
CONVERSION ACCURACY
±0.5% of F.S. at 25°C(77°F)
±2.0% of F.S. at 0 to 65°C (32 to 149°F)
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 : 100() (*option)
Number of output points : 2 points
DIMENSION OF TARGET
(Model VK, RD,FK)
CAUTION) To detect a projection(gear), provide surface A of the projection with a concentric
curve.
Do not make it flat.
A= mm
B= mm
C= mm
D= mm MONITOR/PULSE
OUTPUT
(FROM FRONT, REAR
PANEL )
Monitor output/Pulse output, selectable
Monitor output : Input signal is output via a buffer amplifier.
Signal level : -0.8 to -22VDC(VK, RD)
±15V(MS),0 to 15VDC(VE), 0 to 5VDC(VC)
Pulse output : Shaped pulse signal is output via a buffer amplifier.
Signal level : -1 to +1V(PL),4 to 6V(PH)
Output impedance: Approx.100( (load resistance 50k( or more)
TEMPERATURE RANGE
Operating temperature : 0 to 65°C(32 to 149°F)
Storage temperature : -30 to +85°C(-22 to +185°F)
Relative humidity : 20 to 95%RH(noncondensing)
MATERIAL AND FINISH Face plate : Aluminum Munsell N-4.0 (equiv.)
OTHERS
MASS Monitor : max.0.7kg
(including single unit instrument rack max.2.5kg)
VM-5S- -
Ordering Information Standard Specifications
- -
! WARNING
This monitor is designed for monitoring but not for controlling the rotor speed.
• Use the speed relay contact only for alarms.
• Use the recorder output only for data recording.
• When a zero speed system is designed using this monitor, other enable contact should be provided by the
customer for the reliable and safe engagement of the turning gear.
Note)
*1 VK transducer can not detect the wire break
in the sensor system, so RD or FK driver
which can detect the wire break shall be
recommended. Especially in case of the
application for zero speed monitor, RD or
FK driver shall be strongly recommended
for safety.
Model Code / Additional Spec. Code( )
No entry if additional
spec. code is not specified.
- -
/TRP/CEM/(IS or RE )/5G
When recorder output code 2
is selected, specify this
o
p
tion code.
Note) *2 Input abnormal alarm is not applicable in case of VC and VE input signal.
*3 Short circuit is not detectable in case of MS in
p
ut si
g
nal.
Note) *4 It is necessary to set all
monitor units in the same
rack in first out function
ON when it is used first ou
t
function.
*5 Auto trigger mode is not
selectable, in case of zero
speed use.
39511E4.5
Input
VK-202
A
RD-05A
FK-202F
VK-452A
FK-452F VK-302P
A ≥6 ≥16 ≥8
B ≥7 ≥20 ≥8
C ≥2.5 ≥4.5 ≥2.5
Dimension of target
[recommended]
(mm) D ≥16 ≥36 ≥20
Set gap
[recommended](mm) 1.0 to 1.5 2.5 to 3.5 1.0 to 1.5
D
A
B
C
D D
A
CBC

3. OUTLINE DRAWING VM-5S
-3-
No. Name No. Name
1 LCD display 9 Name plate
2 Speed relay (2) lamp 10 Tag, Ser.No. plate
3 Speed relay (1) lamp 11 LCD board
4 Speed relay (4) lamp 12 Slide frame
5 Speed relay (3) lamp 13 Main board frame
6 OK lamp 14 Main board
7 BYPASS lamp 15 DIN connector (64pin)
8 Monitor output connector --- ---------------
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-5S
-4-
• Do not use the blank terminals.
INTERCONNECTION OF TRANSDUCER
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

4. INTERCONNECTION VM-5S
-5-
4-1 INTRINSIC SAFETY EXPLOSION-PROOF CONSTRUCTION
4-1-1 MODEL VK, MODEL RD AND VM-5G OR VM-5Y1,2,3
VK-202A or RD 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 B2
Power C 3 1 PWR A3 PWR B3

4. INTERCONNECTION VM-5S
-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.
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%.
Mandantory
Warning

4. INTERCONNECTION VM-5S
-7-
4-1-2 MODEL FK AND VM-5G OR VM-5Y1,2,3
FK-202 input : RIIS 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 B1
COM B Earth Earth COM A2 COM B2
-24V C 3 1 PWR A3 PWR B3
Shield (COM) D Earth Earth COM A2 COM B2

4. INTERCONNECTION VM-5S
-8-
•Be sure to observe the following cautions at the time of interconnection.
Note No.
in drawing Caution
1)
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.
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.
•Make sure to turn the power off before wiring work to prevent accidents due to
electric shock.
Warning
Mandantory

4. INTERCONNECTION VM-5S
-9-
4-2 NON-INTRINSIC SAFETY EXPLOSION-PROOF CONSTRUCTION
4-2-1 MODEL VK, MODEL RD 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

4. INTERCONNECTION VM-5S
-10-
•Be sure to observe the following cautions at the time of interconnection.
Note No.
in drawing Caution
1)
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.
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.
•Make sure to turn the power off before wiring work to prevent accidents due to
electric shock.
Warning
Mandantory

4. INTERCONNECTION VM-5S
-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

4. INTERCONNECTION VM-5S
-12-
•Be sure to observe the following cautions at the time of interconnection.
Note No.
in drawing Caution
1)
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.
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. 16 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.
4) Remove the insulation so there is 9mm of exposed wire, and twist the wire.
Do not finish terminals of the wire with solder.
•Make sure to turn the power off before wiring work to prevent accidents due to
electric shock.
Warning
Mandantory

4. INTERCONNECTION VM-5S
-13-
4-2-3 MODEL VE AND VM-5G SINGLE UNIT INSTRUMENT RACK
•Make sure to turn the power off before wiring work to prevent accidents due to
electric shock.
Warning