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Shinkawa VM-5K Instruction Manual

Monitor dual tachometer
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VM-5 SERIES MONITOR
MODEL VM-5S DUAL TACHOMETER
INSTRUCTION MANUAL 
 
 
 
 
 
 
 
MANUAL NO. 29602E4.7
Published in Apr.1996
Revised in Feb.2012

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  • Page 1 MANUAL NO. 29602E4.7 Published in Apr.1996 Revised in Feb.2012 VM-5 SERIES MONITOR MODEL VM-5S DUAL TACHOMETER INSTRUCTION MANUAL               ...
  • Page 2 VM-5S 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.
  • Page 3 SAFETY CONVENTIONS VM-5S 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.
  • Page 4 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.
  • Page 5 VM-5S ■ 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.

  • Page 6: Table Of Contents

    TABLE OF CONTENTS VM-5S 1. GENERAL INFORMATION --------------------------------------------------------------------------------------------------- 2. SPECIFICATIONS --------------------------------------------------------------------------------------------------- 3. OUTLINE DRAWING --------------------------------------------------------------------------------------------------- 4. INTERCONNECTION INTRINSIC SAFETY EXPLOSION-PROOF CONSTRUCTION ---------------- NON-INTRINSIC SAFETY EXPLOSION-PROOF CONSTRUCTION --------- 5. DESCRIPTION OF FUNCTIONS DISPLAY -------------------------------------------------------------------------------------- 19 SPEED RELAY FUNCTIONS ------------------------------------------------------------ 19 OK(INPUT ABNORMAL)ALARM -------------------------------------------------------- 19 FIRSTOUT DISPLAY ----------------------------------------------------------------------- 20 BYPASS FUNCTION-------------------------------------------------------------------------- 20 POWER ON TIMER MODE...
  • Page 7 TABLE OF CONTENTS VM-5S 7. PARAMETER SETTING WITHDRAWAL OF FACE PLATE ------------------------------------------------------ 26 BASIC KEY OPERATIONS --------------------------------------------------------------- 28 DIP SWITCH SETTING -------------------------------------------------------------------- 29 PARAMETER SETTING 1 ---------------------------------------------------------------- 30 PARAMETER SETTING 2 ---------------------------------------------------------------- 39 TRIGGER LEVEL AND HYSTERESIS ------------------------------------------------ 47 GEAR TOOTH FORM SUITABLE FOR DETECTION ----------------------------- 49 TRIGGER MODE SELECTION ---------------------------------------------------------- 51 AUTO TRIGGER MODE SELECTION ------------------------------------------------ 52...
  • Page 8 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...
  • Page 9 2. SPECIFICATIONS VM-5S No entry if additional Model Code / Additional Spec. Code( spec. code is not specified. VM-5S- Monitor range Input signal Recorder output Relay output to 1,000rpm VK,RD,FK Series*1 4 to 20mADC CH1 : 4 points (SR1,SR2,SR3,SR4) CH1 : 2 points (SR1,SR2) CH2 : 2 points (SR3,SR4) SR1,SR2,SR3,SR4 Individual output SR1,SR3 OR output...
  • Page 10 3. OUTLINE DRAWING VM-5S Name Name LCD display Name plate Speed relay (2) lamp Tag, Ser.No. plate Speed relay (1) lamp LCD board Speed relay (4) lamp Slide frame Speed relay (3) lamp Main board frame OK lamp Main board BYPASS lamp DIN connector (64pin) Monitor output connector...

  • Page 11: Interconnection

    4. INTERCONNECTION VM-5S • Do not use the blank terminals. Prohibition INTERCONNECTION OF TRANSDUCER Connection of signal transmission cable • For interconnection between the driver and the monitor, or between the driver and Mandatory 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.

  • Page 12: Intrinsic Safety Explosion-Proof Construction

    4. INTERCONNECTION VM-5S 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 Signal name Wire no. Hazardous area Safe area Terminal name Terminal name Output...
  • Page 13 4. INTERCONNECTION VM-5S • Be sure to observe the following cautions at the time of interconnection. Mandantory Note No. Caution in drawing 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.)
  • Page 14 4. INTERCONNECTION VM-5S 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 Signal name Wire no. Hazardous area Safe area Terminal name Terminal name Earth Earth -24V Shield (COM) Earth Earth...
  • Page 15 4. INTERCONNECTION VM-5S • Be sure to observe the following cautions at the time of interconnection. Mandantory Note No. Caution in drawing 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.

  • Page 16: Non-Intrinsic Safety Explosion-Proof Construction

    4. INTERCONNECTION VM-5S 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 Signal name Wire no. Terminal name Terminal name Output Common, Shield B, D Power...
  • Page 17 4. INTERCONNECTION VM-5S • Be sure to observe the following cautions at the time of interconnection. Mandantory Note No. Caution in drawing 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.
  • Page 18 4. INTERCONNECTION VM-5S 4-2-2 MODEL FK AND VM-5G OR VM-5Y1,2,3 Connected terminals Signal name Wire no. Terminal name Terminal name -24V Shield (COM) -11-...
  • Page 19 4. INTERCONNECTION VM-5S • Be sure to observe the following cautions at the time of interconnection. Mandantory Note No. Caution in drawing 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.
  • Page 20 4. INTERCONNECTION VM-5S 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 -13-...
  • Page 21 4. INTERCONNECTION VM-5S 4-2-4 MODEL VE AND VM-5Y1,2,3 RELAY MODULE UNIT • Make sure to turn the power off before wiring work to prevent accidents due to electric shock. Warning -14-...
  • Page 22 4. INTERCONNECTION VM-5S 4-2-5 MODEL MS AND VM-5G SINGLE UNIT INSTRUMENT RACK -15-...
  • Page 23 4. INTERCONNECTION VM-5S • Be sure to observe the following cautions at the time of interconnection. Mandantory Note No. Caution in drawing Use 2-wire twisted pair shielded cable with AWG. No. 16 to No. 20 (1.25 mm to 0.5 mm ) for cabling between the monitor and the magnetic pickup.
  • Page 24 4. INTERCONNECTION VM-5S 4-2-6 MODEL MS AND VM-5Y1,2,3 RELAY MODULE UNIT -17-...
  • Page 25 4. INTERCONNECTION VM-5S • Be sure to observe the following cautions at the time of interconnection. Mandantory Note No. Caution in drawing Use 2-wire twisted pair shielded cable with AWG. No. 16 to No. 20 (1.25 mm to 0.5 mm ) for cabling between the monitor and the magnetic pickup.

  • Page 26: Description Of Functions

    5. DESCRIPTION OF FUNCTION VM-5S 5-1 DISPLAY Rotor speed, speed comparison setting value, and sensor set gap voltage are normally displayed on individual LCD for each channel. 5-2 SPEED RELAY FUNCTIONS The VM-5S Dual Tachometer is provided with a speed relay function to monitor the rotation speed. The following two speed relay types are available.

  • Page 27: Firstout Display

    5. DESCRIPTION OF FUNCTION VM-5S 5-4 FIRSTOUT DISPLAY Causes the lamp of the speed relay that is output first to flash. Also performs comparison with the alarms of other monitors if installed in the VM-5H3, VM-5W1 instrument rack. For details refer to 7. PARAMETER SETTING on page 26. •...

  • Page 28: Ok Alarm / Speed Relay Mode

    5. DESCRIPTION OF FUNCTION VM-5S 5-7 OK ALARM / SPEED RELAY MODE Each OK alarm and SPEED RELAY contact can be set to either normally de-energized or normally energized. Alarm contact operation Monitor power ON Monitor power Normal state Alarm state NO contact NORMALLY DE-ENERGIZED OPEN OPEN...

  • Page 29: Power Sequence

    5. DESCRIPTION OF FUNCTION VM-5S 5-12 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.

  • Page 30: Description Of Front Panel/Side View

    6. DESCRIPTION OF PARTS VM-5S 6-1 DESCRIPTION OF FRONT PANEL/SIDE VIEW Name Name LCD display Name plate Speed relay (2) lamp Tag, Ser.No. plate Speed relay (1) lamp LCD board Speed relay (4) lamp Slide frame Speed relay (3) lamp Main board frame OK lamp Main board...

  • Page 31: Description Of Parts

    6. DESCRIPTION OF PARTS VM-5S 6-2 DESCRIPTION OF PARTS 1 LCD display This LCD display serves for display of measured values, speed relay set values, sensor set gap voltage value and other set values. 2 SPEED RELAY 2 lamp Lit when SPEED RELAY 2 is output. 3 SPEED RELAY 1 lamp Lit when SPEED RELAY 1 is output.

  • Page 32: Description Of Lcd Display

    6. DESCRIPTION OF PARTS VM-5S 6-3 DESCRIPTION OF LCD DISPLAY NAME NAME CH1 measured value (digital) CH2 measured value (digital) CH1 measured value (bar graph) CH2 measured value (bar graph) CH1 sensor set gap voltage value CH2 sensor set gap voltage value (VK , FK , RD input specification) (VK , FK , RD input specification) SPEED RELAY 2 set value...

  • Page 33: Parameter Setting

    7. PARAMETER SETTING VM-5S 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. •...
  • Page 34 7. PARAMETER SETTING VM-5S 3) Open the face plate toward the right. • Make sure not to touch internal printed circuit board. Prohibition 4) The keys and DIP switches for setting the parameters are located inside the unit. Specification set keys N•A DIP switches -27-...

  • Page 35: Basic Key Operations

    7. PARAMETER SETTING VM-5S 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.

  • Page 36: Dip Switch Setting

    7. PARAMETER SETTING VM-5S 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"...

  • Page 37: Parameter Setting

    7. PARAMETER SETTING VM-5S 7-4 PARAMETER SETTING 1 7-4-1 PARAMETER SETTING 1 • Setting the parameters for OK alarm / SPEED RELAY reset mode, OK alarm / SPEED RELAY delay time, OK alarm / SPEED RELAY mode, first-out display, timed OK channel defeat and peak hold is enabled.
  • Page 38 7. PARAMETER SETTING VM-5S 7-4-3 DISPLAY SCREEN HIERARCHY The flow chart shows the hierarchy of the PARAMETER SETTING 1 display. PARAMETER SETTING 1 SPEED RELAY 2 reset mode set SPEED RELAY 4 reset mode set SPEED RELAY 1 reset mode set SPEED RELAY 3 reset mode set CH1 OK alarm reset mode set CH2 OK alarm reset mode set...
  • Page 39 7. PARAMETER SETTING VM-5S SPEED RELAY 2 relay mode set SPEED RELAY 4 relay mode set SPEED RELAY 1 relay mode set SPEED RELAY 3 relay mode set CH1 OK alarm relay mode set Display only if used in combination with the CH2 OK alarm relay mode set VM-5Y3,4,5,6 Relay Module Unit.
  • Page 40 7. PARAMETER SETTING VM-5S 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. MEAS 1 Display Parameter SPEED RELAY 2 reset SPEED RELAY 4 reset...
  • Page 41 7. PARAMETER SETTING VM-5S MEAS 2 ..Displays the status of each parameter. Display Parameter status LATCH self-hold MEAS 2 NON LATCH auto-reset MEAS1 Alarm delay time None MEAS2 ENERGIZED ALARM (Normally DE-ENERGIZED) MEAS1 MEAS2 DE-ENERGIZED ALARM (Normally ENERGIZED) Alarm delay time 1 sec. Alarm delay time 3 sec.
  • Page 42 7. PARAMETER SETTING VM-5S 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- MEAS 2 Key operation Remarks MEAS 1...
  • Page 43 7. PARAMETER SETTING VM-5S LCD display Proce- MEAS 2 Key operation Remarks MEAS 1 dure (Parameter (Parameter) Status) Press UP or Select NON (none) with UP DOWN key. or DOWN key. Present Specify SPEED RELAY 4 Press SET key. status delay time.
  • Page 44 7. PARAMETER SETTING VM-5S LCD display Proce- MEAS 2 Key operation Remarks MEAS 1 dure (Parameter (Parameter) Status) Select ENERGIZED or Press UP or DEENERGIZED with UP or DOWN key. DOWN key. Present Specify SPEED RELAY 4 Press SET key. relay mode.
  • Page 45 7. PARAMETER SETTING VM-5S LCD display Proce- MEAS 2 Key operation Remarks MEAS 1 dure (Parameter (Parameter) Status) Present Press SET key. Specify first-out display. status Select ON (enable) or OFF Press UP or (disable) with UP or DOWN DOWN key. key.

  • Page 46: Parameter Setting

    7. PARAMETER SETTING VM-5S 7-5 PARAMETER SETTING 2 7-5-1 PARAMETER SETTING 2 • This chapter describes how to change the SPEED RELAY set values, set trigger level, adjusting measured value span and recorder output zero span. • For adjustment of measured value and recorder output zero span refer to page 62 "MAINTENANCE".
  • Page 47 7. PARAMETER SETTING VM-5S 7-5-3 DISPLAY HIERARCHY The flow chart shows the hierarchy of the PARAMETER SETTING 2 display. PARAMETER SETTING 2 SPEED RELAY 2 set Set range : 0 to 110% of monitor range or ineffective SPEED RELAY 4 set The OVER SPEED type has Set range : 0 to 110% of monitor range or ineffective priority in the setting sequence...
  • Page 48 7. PARAMETER SETTING VM-5S CH1 measured value span adjustment Adjustment range : ±5% of monitor range CH2 measured value span adjustment Adjustment range : ±5% of monitor range CH1 recorder output zero adjustment Adjustment range : ±5% of monitor range CH2 recorder output zero adjustment Adjustment range : ±5% of monitor range CH1 recorder output span adjustment...
  • Page 49 7. PARAMETER SETTING VM-5S 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 MEAS 1 SPEED RELAY 2 set (over speed) MEAS1 SPEED RELAY 4 set (over speed) SPEED RELAY 1 set (over speed)
  • Page 50 7. PARAMETER SETTING VM-5S MEAS 2 ..Displays the status of each parameter. Display Parameter status Disable MEAS 2 MEAS1 Error MEAS2 MEAS1 MEAS2 LCD display • The limit value specified for over speed type SPEED RELAY set value must be higher than that for under speed type SPEED RELAY set value.
  • Page 51 7. PARAMETER SETTING VM-5S 7-5-5 KEY OPERATIONS The chart below describes the key operations for PARAMETER SETTING 2. • The display is reset to normal if there is no key operation for approx. 60 sec. • The speed relay types for the parameters in procedures 1 to 8 are all OVER SPEED.
  • Page 52 7. PARAMETER SETTING VM-5S LCD display Proce- MEAS 2 Key operation Remarks MEAS 1 dure (Parameter (Parameter) Status) Present status Specify CH1 trigger level. Press SET key. Press CHECK Fix digit with CHECK key 0.0 to 24.0V and UP or and specify value with UP or (Absolute value DOWN key.
  • Page 53 7. PARAMETER SETTING VM-5S LCD display Proce- MEAS 2 Key operation Remarks MEAS 1 dure (Parameter (Parameter) Status) Present Specify CH1 recorder output Press SET key. measured zero adjustment. value Present Set gain with CHECK key Press CHECK and UP or measured and adjust recorder output DOWN key.

  • Page 54: Trigger Level And Hysteresis

    7. PARAMETER SETTING VM-5S 7-6 TRIGGER LEVEL AND HYSTERESIS A pulse-like analog signal is output by a sensor inside the VM-5S and compared with a standard DC voltage to shape the waveform. The input signal from the sensor or the shaped pulse signal can be observed at the BNC connector on the monitor front panel and buffer output terminal on the relay panel (VM-5G Single Unit Instrument Rack, VM-5Y Relay Module Unit).
  • Page 55 7. PARAMETER SETTING VM-5S Monitor Output Trigger Level Setting Voltage Hysteresis -20V Pulse Output Fig. 7-6-2 Monitor Output Trigger Level Setting Voltage Hysteresis -20V Pulse Output Fig.7-6-3 -48-...

  • Page 56: Gear Tooth Form Suitable For Detection

    7. PARAMETER SETTING VM-5S 7-7 GEAR TOOTH FORM SUITABLE FOR DETECTION The recommended tooth form and dimensions are shown in the drawing below. If the teeth are smaller than the below dimensions , the amplitude of the detection signal becomes so small that detection error may result.
  • Page 57 7. PARAMETER SETTING VM-5S • When the target shifts in the axial direction caused by differential expansion, add the amount of target shift to the ”D” value to consider so that the target surface is not Mandatory dislocated from the sensor. •...

  • Page 58: Trigger Mode Selection

    7. PARAMETER SETTING VM-5S 7-8 TRIGGER MODE SELECTION 7-8-1 AUTO TRIGGER MODE In Auto Trigger mode, the optimum trigger level for the input waveform is set automatically. Select Auto Trigger mode under the following conditions: • MS Magnetic Pickup input specifications. •...

  • Page 59: Auto Trigger Mode Selection

    7. PARAMETER SETTING VM-5S 7-9 AUTO TRIGGER MODE SELECTION (1) Remove the monitor unit from the rack. • Refer to the instruction manual of the instrument rack in which the monitor is installed. Mandatory (2) The Trigger Mode switch is located on the trigger card on the main board. Set the switch to the left for Auto Trigger or to the right for Manual Trigger.

  • Page 60: Manual Trigger Mode Selection

    7. PARAMETER SETTING VM-5S 7-10 MANUAL TRIGGER MODE SELECTION (1) Select Manual Trigger mode. Refer to "7-9 AUTO TRIGGER MODE SELECTION" on page 52. (2) Select the monitor output referring to "7-13 MONITOR OUTPUT/PULSE OUTPUT SELECTION" on page 56. (3) Allow to warm up for at least 15 minutes after power-up. (4) Connect an oscilloscope to the BNC connector on the monitor front panel.

  • Page 61: Determination Of Hysteresis

    7. PARAMETER SETTING VM-5S 7-11 DETERMINATION OF HYSTERESIS The hysteresis can be set by means of the jumper pins on the circuit board to 0.1V, 0.2V 0.5V or 1.0V. It is preset to 1.0V at the factory, but may have to be changed if any of the following conditions apply.

  • Page 62: Hysteresis Setting

    7. PARAMETER SETTING VM-5S 7-12 HYSTERESIS SETTING (1) Remove the monitor unit from the rack. • Refer to the instruction manual of the instrument rack in which the monitor is installed. Mandatory (2) The jumper pins for hysteresis setting are located on the trigger card on the main board. Connect the jumper in the desired position (marked 0.1V, 0.2V, 0.5V and 1.0V).

  • Page 63: Monitor Output / Pulse Output Selection

    7. PARAMETER SETTING VM-5S 7-14 MONITOR OUTPUT / PULSE OUTPUT SELECTION (1) Remove the monitor unit from the rack. • Refer to the instruction manual of the instrument rack in which the monitor is installed. Mandatory (2) The jumper pins for selecting between monitor and pulse output are located in the center of the main board.

  • Page 64: Speed Relay Hysteresis

    7. PARAMETER SETTING VM-5S 7-14 SPEED RELAY HYSTERESIS In Auto Reset mode, the speed relay can be provided with hysteresis to prevent contact chattering when the rotation speed cycles around the speed relay set value. Example : The relay operates as shown below if the monitor range is 10,000 rpm (hysteresis 20 rpm).

  • Page 65: Functional Diagram

    8. FUNCTIONAL DIAGRAM VM-5S 8-1 BLOCK DIAGRAM -58-...

  • Page 66: Functional Block Diagram

    8. FUNCTIONAL DIAGRAM VM-5S 8-2 FUNCTIONAL BLOCK DIAGRAM Input amplifier Buffer amplifier for input signals. Cuts off the high frequency range. HPF (Enabled for VM-5K, 5U, 5B and 5M) Cuts off the low frequency range. Integrator (Enabled for VM-5U, 5B and 5M) Integrates the input signal to convert acceleration to velocity or velocity to displacement.
  • Page 67 8. FUNCTIONAL DIAGRAM VM-5S 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.

  • Page 68: Maintenance

    9. MAINTENANCE VM-5S 9-1 RECOMMENDED MAINTENANCE EQUIPMENT The recommended maintenance equipments listed below should be used to perform the procedures in this manual. • Digital Multimeter (DMM) Agilent Technologies 3466A or equivalent • Two channel synthesizer Yokogawa FG-120 or equivalent •...

  • Page 69: Verification Of Ok(Input Abnormal Alarm) Operation

    9. MAINTENANCE VM-5S 9-2 VERIFICATION OF OK (INPUT ABNORMAL ALARM) OPERATION This clause is used to test the display and contact output of OK (INPUT ABNORMAL ALARM). • Since OK (INPUT ABNORMAL ALARM) will be output during the test, open the circuit between the alarm contacts and the connected system if necessary.
  • Page 70 9. MAINTENANCE VM-5S 9-2-2 VERIFICATION OF OPERATION (1) Verification of Alarm Operation (No output) Connect the input transducer. Verify that the OK lamp lights at the end of the POWER ON TIMER period. At the same time, test the OK contact points for continuity. (2) Verification of Alarm Operation (Output) Disconnect the signal transmission cable of the input transducer from the output terminal block.

  • Page 71: Verification Of Speed Relay Operation

    9. MAINTENANCE VM-5S 9-3 VERIFICATION OF SPEED RELAY OPERATION This procedure is used to test the display and contact output. • Since SPEED RELAY contact will be output during the test, open the circuit between the contacts and the connected system if necessary. Mandatory •...
  • Page 72 9. MAINTENANCE VM-5S 9-3-2 VERIFICATION OF OPERATION (1) Trigger Mode selection Set the Trigger Mode to Auto Trigger referring to "7-9 TRIGGER MODE SELECTION" on page 52. (2) Input of Reference Voltage Make the input form the synthesizer a 2Vpk-pk amplitude sine wave voltage. The offset voltage differs as follows depending on specifications.

  • Page 73: Verification Of Measured Value And Recorder Output

    9. MAINTENANCE VM-5S 9-4 VERIFICATION OF MEASURED VALUE AND RECORDER OUTPUT This clause is used to test the measured value and recorder output. • Since SPEED RELAY may be output during the test, open the circuit between the SPEED RELAY contacts and the connected system if necessary. Mandatory •...
  • Page 74 9. MAINTENANCE VM-5S 9-4-2 VERIFICATION OF OPERATION (1) Trigger Mode selection Set the Trigger Mode to Auto Trigger referring to "7-9 TRIGGER MODE SELECTION" on page 52. (2) Input of Reference Voltage Make the input form the synthesizer a 2Vpk-pk amplitude sine wave voltage. The offset voltage differs as follows depending on specifications.

  • Page 75: Adjustment Of Measured Value And Recorder Output Zero Span

    9. MAINTENANCE VM-5S 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 Mandatory connected system if necessary.
  • Page 76 9. MAINTENANCE VM-5S 9-5-2 ADJUSTMENT (1) Trigger Mode selection Set the Trigger Mode to Auto Trigger referring to "7-9 TRIGGER MODE SELECTION" on page 52. (2) Input of Reference Voltage Make the input form the synthesizer a 2Vpk-pk amplitude sine wave voltage. The offset voltage differs as follows depending on specifications.
  • Page 77 9. MAINTENANCE VM-5S (4) Measured value span adjustment Display MEASURED VALUE SPAN ADJUSTMENT referring to page 39 "7-5 PARAMETER SETTING 2". 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.

  • Page 78: Replacement Of Aluminum Electrolytic Capacitor

    9. MAINTENANCE VM-5S 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.

  • Page 79: Replacement Of Lcd Unit

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

  • Page 80: Lcd Contrast Adjustment

    9. MAINTENANCE VM-5S 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 26. Mandatory • Do not touch the main board and LCD unit board with bare hands. Prohibition Use a small flat blade screwdriver to set the LCD contrast volume (VR1) on the LCD unit to the desired contrast level.

  • Page 81: Lcd Backlight Adjustment

    9. MAINTENANCE VM-5S 9-8 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 26. Mandatory • Do not touch the main board and LCD unit board with bare hands. Prohibition Use a small flat blade screwdriver to set the LCD backlight volume (VR2) on the LCD unit to the desired brightness level.

  • Page 82: Troubleshooting

    10. TROUBLESHOOTING VM-5S 10-1 LCD DISPLAY CONTENT ABNORMAL Start Display is abnormal. Display is blank. Is power Turn on power supply. supply on? connections to Connect correctly. power supply terminals correct? Turn on power supply again. Insert Main board Is Main board firmly by pushing inserted firmly to Main board frame.

  • Page 83: Ok Display Flashes

    10. TROUBLESHOOTING VM-5S 10-2 OK DISPLAY FLASHES Start Wait approx.100 sec., then reset key. Did flashing stop? Insert Main board Is Main board firmly by pushing inserted firmly to Main board frame. the rack? Run self-diagnosis (press CHK key). Check sensor set gap Sensor wire breakage.

  • Page 84: Measured Value Abnormal

    10. TROUBLESHOOTING VM-5S 10-3 MEASURED VALUE ABNORMAL Start Again set trigger level. Trigger set properly? Set to a proper value. Hysteresis set properly? Noise Noise mixed in? countermeasures. Repair VM-5. -77-...

  • Page 85: Speed Relay Does Not Operate

    10. TROUBLESHOOTING VM-5S 10-4 SPEED RELAY DOES NOT OPERATE Start Is channel bypass in operation? Release channel Is limit bypass. Set within value set within measurement measurement range. range? Is DANGER bypass in operation? Release DANGER bypass. Is channel bypass in operation? Speed relay in Release channel...

  • Page 86: Erroneous Operation Of Speed Relay

    10. TROUBLESHOOTING VM-5S 10-5 ERRONEOUS OPERATION OF SPEED RELAY Start Set to a proper value. Hysteresis set properly? Noise Noise mixed in? countermeasures. Repair VM-5. 10-6 OK (INPUT ABNORMAL) ALARM DOES NOT OPERATE Start Repair VM-5. Is channel bypass in operation? Release channel bypass.

  • Page 87: Site Inspection

    11. SITE INSPECTION VM-5S • This section describes the main inspection and verification steps from completion of the zero-speed monitoring system to start-up. For adjustment and operation of machines, make sure to read the instruction manuals supplied with the machines. 11-1 VERIFICATIONS IN STOPPED CONDITION (1) Verification of Interconnections Verify that all interconnections have been carried out properly (refer to 4.

  • Page 88: Verification In Turning Condition

    11. SITE INSPECTION VM-5S (3) Verification of set values The trigger level set value, hysteresis set value, and speed relay set value are preset prior to shipment. To change any of these values, refer to 7. PARAMETER SETTING on page 25. (4) Dummy Input Verification Apply a dummy signal from an oscillator to CH1 and CH2, and verify SPEED RELAY operation.

  • Page 89: Verifications During Operation

    11. SITE INSPECTION VM-5S (2) Verification and Recording in Automatic Turning Condition Switch the turning motor ON/OFF, and verify and record that the SPEED RELAY lamp goes on and off and ON/OFF operation of the SPEED RELAY contact points. CH1 Monitor output CH2 Monitor output Speed relay contact output VM-5S...

  • Page 90: Checks Prior To Operation

    11. SITE INSPECTION VM-5S 11-4 CHECKS PRIOR TO OPERATION Result Check Item Description Item CH-1 CH-2 □ □ 1. Interconnections Refer to Result 4. INTERCONNECTION on page 4. □ □ 2. Insulation of connectors Result □ □ Result Terminations of shielded cables 4.
  • Page 91 In the event that a Shinkawa engineer needs to be dispatched for repair purposes during the warranty period, the cost of the repairs will be borne by Shinkawa Electric ; however, the travel expenses shall be charged in accordance with our policies.
  • Page 92 Hiroshima Factory 4-22 Yoshikawa-kogyodanchi, Higashi-hiroshima 739-0153, Japan Tel. +81-82-429-1118 Fax. +81-82-429-0804 [Field support & Repair Dept] E-Mail : service@sst.shinkawa.co.jp...

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