Vm-5 Series Monitor Model Vm-5k Dual Vibration

Transcript

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 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. i SAFETY CONVENTIONS VM-5K 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 Indicates a potentially hazardous situation which, if not avoided, could result in death WARNING 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. ii SAFETY CONVENTIONS VM-5K 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. Connect earth wire Make sure to turn the power off before any wiring work. PROHIBITION Will cause electric shock. CAUTION MANDATORY 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. MANDATORY MANDATORY 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. PROHIBITION PROHIBITION 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. PROHIBITION Do not pull out the face plate during operation. PROHIBITION 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. PROHIBITION Will cause damage to the instrument. Do not remodel this monitor unit without permission. PROHIBITION Otherwise the guarantee can not be made. iii SAFETY CONVENTIONS VM-5K ■ 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 MANDATORY MANDATORY MANDATORY MANDATORY MANDATORY PROHIBITION PROHIBITION 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 iv TABLE OF CONTENTS VM-5K 1. GENERAL INFORMATION --------------------------------------------------------------------------------------------------- 1 2. SPECIFICATIONS --------------------------------------------------------------------------------------------------- 2 3. OUTLINE DRAWING --------------------------------------------------------------------------------------------------- 3 4. INTERCONNECTION 4-1 INTRINSIC SAFETY EXPLOSION-PROOF CONSTRUCTION ---------------- 4-2 NON-INTRINSIC SAFETY EXPLOSION-PROOF CONSTRUCTION --------- 5 9 5. DESCRIPTION OF FUNCTIONS 5-1 DISPLAY -------------------------------------------------------------------------------------- 13 5-2 ALARM FUNCTIONS 5-3 DANGER(DAN)ALARM 5-4 ALERT(ALE)ALARM 5-5 OK(INPUT ABNORMAL)ALARM 5-6 GAP ALARM 5-7 ALARM DELAY FUNCTION 5-8 FIRSTOUT DISPLAY 5-9 SEQUENCE FUNCTION ---------------------------------------------------------------------- 13 -------------------------------------------------------------------- 13 ----------------------------------------------------------------------- 13 -------------------------------------------------------- 13 ---------------------------------------------------------------------------------- 13 -------------------------------------------------------------- 13 ----------------------------------------------------------------------- 14 ------------------------------------------------------------------ 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 5-17 POWER SEQUENCE ------------------------------------------------------- 15 ---------------------------------------------------------------------- 15 5-18 TIMED OK CHANNEL DEFEAT 5-19 SUPPRESSION FUNCTION --------------------------------------------------------- 15 ------------------------------------------------------------- 15 6. DESCRIPTION OF PARTS 6-1 DESCRIPTION OF FRONT PANEL/SIDE VIEW 6-2 DESCRIPTION OF PARTS 6-3 DESCRIPTION OF LCD DISPLAY ----------------------------------- 16 --------------------------------------------------------------- 17 v ----------------------------------------------------- 18 TABLE OF CONTENTS VM-5K 7. PARAMETER SETTING 8. 7-1 WITHDRAWAL OF FACE PLATE ------------------------------------------------------ 19 7-2 BASIC KEY OPERATIONS 7-3 DIP SWITCH SETTING 7-4 PARAMETER SETTING 1 ---------------------------------------------------------------- 23 7-5 PARAMETER SETTING 2 ---------------------------------------------------------------- 32 --------------------------------------------------------------- 21 -------------------------------------------------------------------- 22 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 9-3 VERIFICATION OF DANGER(DAN)/ ALERT(ALE)ALARM OPERATION ----------- 47 9-4 VERIFICATION OF MEASURED VALUE AND RECORDER OUTPUT 9-5 ADJUSTMENT OF MEASURED VALUE AND RECORDER OUTPUT ZERO SPAN 10. ----------- 44 ------ 49 ---------- 51 9-6 REPLACEMENT OF ALUMINUM ELECTROLYTIC CAPACITOR ------------- 53 9-7 REPLACEMENT OF LCD UNIT 9-8 LCD CONTRAST ADJUSTMENT ------------------------------------------------------- 55 9-9 LCD BACKLIGHT ADJUSTMENT ------------------------------------------------------ 56 --------------------------------------------------------- 54 TROUBLESHOOTING 10-1 LCD DISPLAY CONTENT ABNORMAL 10-2 OK DISPLAY FLASHES ---------------------------------------------- 57 ------------------------------------------------------------------- 58 10-3 MEASURED VALUE ABNORMAL ------------------------------------------------------ 59 10-4 OK(INPUT ABNORMAL ALARM)DOES NOT OPERATE 10-5 ALERT(ALE)ALARM DOES NOT OPERATE ------------------------ 60 ---------------------------------------- 60 10-6 DANGER(DAN)ALARM DOES NOT OPERATE ------------------------------------ 61 10-7 ERRORNEOUS OPERATION OF DANGER(DAN)/ ALERT(ALE)ALARM 10-8 NO RECORDER OUTPUT ---------- 61 --------------------------------------------------------------- 62 10-9 GAP ALARM DOES NOT OPERATE vi -------------------------------------------------- 62 1. GENERAL INFORMATION VM-5K 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 Mandatory combination with this monitor unit. • Caution 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. -1- 2. SPECIFICATIONS VM-5K Model Code / Additional Spec. Code( VM-5KMonitor range 1 2 3 4 5 6 7 8 A Input signal 0 to 100µm pk-pk VK-202A, 0 to 125µm pk-pk 1 VK-202P, FK-202F 0 to 200µm pk-pk 0 to 400µm pk-pk 2 VK-302P 0 to 500µm pk-pk 3 VC Series 0 to 3mils pk-pk 0 to 5mils pk-pk 0 to 10mils pk-pk 0 to 15mils pk-pk High cut-off Alarm reset Alarm reset Alarm reset Rectification Recorder output frequency *3 (DANGER) (ALERT) (OK) 5Hz or less 1 100Hz 0 Average value 0 4 to 20mADC 0 AUTO-RESET 0 AUTO-RESET 0 AUTO-RESET 9.5Hz Seismic filter *1 2 500Hz 1 pk to pk 1 1 to 5VDC 1 SELF-HOLD 1 SELF-HOLD 1 SELF-HOLD rms 1kHz 14Hz Seismic filter *1 3 Output card 2 (additional spec./RMS) 2 /IS… or /RE… 15Hz Seismic filter *1 4 4kHz option 40Hz(36dB/oct) 5 10kHz Pipe filter *1 Note) *1 A filter card (option) is required for use of seismic and pipe filters. 60Hz(36dB/oct) The seismic filter can be turned ON/OFF (IN/OUT) by an external contact signal. Pipe filter *1 (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] Low cut-off frequency *3 1 2 3 4 5 6 2 3 1 0 1 Relay mode (OK) NORMALLY DE-ENERGIZED NORMALLY ENERGIZED - 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. 1 0 Relay mode (ALERT) NORMALLY DE-ENERGIZED NORMALLY ENERGIZED - Alarm delay time (ALERT) 0 3 sec. 1 1 sec. 2 6 sec. 3 None 0 /RMS/(IS rms. rectification Isolate output When rectification code 2 is selected, specify this option code. Alarm delay time (DANGER) 0 3 sec. 1 1 sec. 2 6 sec. 3 None or RE )/5G Recorder option Input power supply output requirements 0 4 to 20mADC 2 0 to -10VDC 1 1 to 5VDC 3 0 to 10VDC 2 0 to -10VDC 4 0 to -5VDC 3 0 to 10VDC 5 0 to 5VDC 4 0 to -5VDC 5 0 to 5VDC When recorder output code 2 is selected, specify this option code. 0 1 2 85 to 264VAC 24VDC 110VDC Alarm output type 1 /TRP/EX Tropical spec. Sensitivity correction 1 2 4 5 TIIS(IEC) FM CSA ATEX Ordering Information ABNOR. ALARM INDICATOR BYPASS INDICATOR TRANSDUCER INPUT SUPPRESSION : 0.0 to 10.0 % of monitor range (0.1 % step) FUNCTION SET VALUE 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 %. OTHERS Standard Specifications MEASURED VIBRATION VALUE 0 1 OFF ON /CEM Special alarm logic DANGER ALERT 1CH 2CH 1CH 2CH >DANGER >DANGER >ALERT >ALERT >DANGER NOT OK >ALERT DANGER ALERT >ALERT NOT OK NOT OK >ALERT >DANGER >DANGER >ALERT >ALERT >DANGER >ALERT >ALERT ALERT >DANGER ALERT >DANGER NOT OK >ALERT NOT OK NOT OK >DANGER NOT OK >ALERT CE marking Standard Specifications ALARM INDICATOR DANGER1 : ALERT1 : DANGER2 : ALERT2 : Unless specified otherwise, preset to : DANGER : 100% of monitor range ALERT : 90% of monitor range SEQUENCE SET ×1.0 to 10.0 (×0.1 step) : VALUE Preset to ×1.0 unless specified otherwise. (to increase alarm set CAUTION : Set the alarm set value so that its designated value during operation of multiple is within 110% of the measurement the sequence circuit) range during operation of the sequence circuit. If set to more than 110%, alarm may not be output. ALARM SET POINT ALARM SET RANGE ALARM SET ACCURACY ALARM SET REPEATABILITY ALARM OUTPUT First out*2 CH1 : 2 points (DANGER1,ALERT1) CH2 : 2 points (DANGER2,ALERT2) CH1 : 4 points (DANGER1,DANGER2, ALERT1,ALERT2) CH2 : None Special alarm logic(option) /LG Note) Input abnormal alarm is not applicable in case of VC input signal. ALARM SET VALUE ) - Relay mode (DANGER) NORMALLY DE-ENERGIZED NORMALLY ENERGIZED No entry if additional spec. code is not specified. 4 points (DANGER1,ALERT1,DANGER2,ALERT2) 0 to 110% of monitor range ± 1.0% of F.S. or less ± 0.1% of F.S. or less 5 points (DANGER1,ALERT1,ALERT2,DANGER2,OK) or 6 points (DANGER1,ALERT1,ALERT2,DANGER2,OK1,OK2) 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. -2- INPUT IMPEDANCE EXTERNAL CONTACT INPUT (FROM REAR PANEL) BAR GRAPH METER DIGITAL METER RECORDER OUTPUT CONVERSION ACCURACY LOOP ACCURACY FOR MONITOR+SENSOR DANGER : ALERT : OK : (red LED) (yellow LED) (green LED) BYPASS : (red LED) VK-202A,VK-202P,FK-202F,VK-302P,VC Series Number of input points : 2 points Approx. 50kΩ Contact type : Dry contact Contact for external reset Contact for sequence Recorder output conversion accuracy ± 2.5% of F.S. Recorder output conversion accuracy ± 1.0% of F.S. ± 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.) ± 5% of F.S. or less (if calibrated as a loop) 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 MONITOR OUTPUT Input signal is output via a buffer amplifier. (FROM FRONT, REAR Signal level : -0.8 to -22VDC(VK), 0 to 5VDC(VC) PANEL) Output impedance : 100Ω (load resistance 50kΩ or more) TEMPERATURE Operating temperature : 0 to 65°C (32 to 149°F REF.) RANGE 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.) MASS Monitor : max.0.7kg (max.1.6lb REF.) (including single unit instrument rack : max.2.5kg (max.5.5lb REF.)) 39501E4.6 3. OUTLINE DRAWING VM-5K 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) -3- ---------- 4. INTERCONNECTION VM-5K INTERCONNECTION OF I/O TERMINAL BOARD • Do not use the blank terminals. Prohibition INTERCONNECTION OF TRANDUCER Connection of signal transmission cable • Mandatory 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 CVVS (3-core shielded cable) Recommended cabling as per API st’d 670 Normal: Silver-plated braid Conduit pipe Excellent Shielded wire Conduit pipe Outside shielded Good Shielded wire Mandatory Recommended: Copper tape shielded (Core wire: Soft copper wire) Use conduit pipe (cable rack) for wiring. INSTRUMENT CABLE (Pair shielded standard 3-wire) • Note 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. -4- 4. INTERCONNECTION VM-5K 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 Signal name Wire no. Monitor Terminals Hazardous area Safe area No. No. Terminal name 1ch No. Terminal name 2ch 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 -5- 4. INTERCONNECTION • VM-5K Be sure to observe the following cautions at the time of interconnection. Mandantory Note No. in drawing Caution 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.) 1) 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. Warning • If wired according to this drawing, the resistance of the safety barrier causes the input voltage of the monitor to drop by about 1%. -6- 4. INTERCONNECTION VM-5K 4-1-2 MODEL FK AND VM-5G OR VM-5Y1,2,3 FK-202F input : TIIS Ex ia IIC T4 Safety Barrier Terminals Signal name Wire no. Monitor Terminals Hazardous area Safe area No. No. Terminal name 1ch No. Terminal name 2ch 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 -7- 4. INTERCONNECTION • VM-5K Be sure to observe the following cautions at the time of interconnection. Mandantory Note No. in drawing 1) Caution 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. Use flexible armored cables as sensor cables and extension cables, unless these cables are not at risk for damage. Allowable bending radius Without armor With armor With fluoro resin coating armor Allowable tension 2) 3) 4) : 30 mm (1.18 in REF.) : 50 mm (1.97 in REF.) : 75mm : 98.1N (10 kgf REF.) 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. 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 • If wired according to this drawing, the resistance of the safety barrier causes the input voltage of the monitor to drop by about 1%. -8- 4. INTERCONNECTION VM-5K 4-2 NON-INTRINSIC SAFETY EXPLOSION-PROOF CONSTRUCTION 4-2-1 MODEL VK AND VM-5G OR VM-5Y1,2,3 Connected terminals Signal name Wire no. CH1 Terminal name CH2 No. Terminal name No. Output A IN A1 IN B1 Common, Shield B, D COM A2 COM B2 Power C PWR A3 PWR B3 -9- 4. INTERCONNECTION • VM-5K Be sure to observe the following cautions at the time of interconnection. Mandantory Note No. in drawing 1) • Warning Caution 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. -10- 4. INTERCONNECTION 4-2-2 VM-5K MODEL FK AND VM-5G OR VM-5Y1,2,3 Connected terminals Signal name Wire no. CH1 CH2 Terminal name No. Terminal name No. B1 OUT A IN A1 IN COM B COM A2 COM B2 -24V C PWR A3 PWR B3 Shield (COM) D COM A2 COM B2 -11- 4. INTERCONNECTION • VM-5K Be sure to observe the following cautions at the time of interconnection. Mandantory Note No. in drawing Caution 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. 1) • Warning Allowable bending radius Without armor With armor With fluoro resin coating armor : : : 30 mm (1.18 in REF.) 50 mm (1.97 in REF.) 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. Make sure to turn the power off before wiring work to prevent accidents due to electric shock. -12- 5. DESCRIPTION OF FUNCTIONS VM-5K 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. For details refer to 7. PARAMETER SETTING on page 19. 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. For details refer to 7. PARAMETER SETTING on page 19. • 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. For details refer to 7. PARAMETER SETTING on page 19. -13- 5. DESCRIPTION OF FUNCTIONS VM-5K 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. Warning • The machine is not protected if the alarm set value exceeds 110% of the monitor range due to operation of the sequence circuit. • It is necessary to keep short circuit of the terminals for more than one (1) second to operate these functions. 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. • Warning 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. -14- 5. DESCRIPTION OF FUNCTIONS VM-5K 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 For details refer to 7. PARAMETER SETTING on page 19. 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. • It is necessary to keep short circuit of the terminals for more than one (1) second to operate these functions. For details refer to 7. PARAMETER SETTING on page 19. 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. • Caution 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%. -15- 6. DESCRIPTION OF PARTS VM-5K 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 --- -16- ---------- 6. DESCRIPTION OF PARTS VM-5K 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. • Mandatory 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. -17- 6. DESCRIPTION OF PARTS VM-5K 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 1 8 6 13 MEAS1 % 4 % 3 100 % 80 12 □□□MEAS2 MEAS1 5 11 MEAS2 100 % 16 80 10 60 12 60 14 7 40 8 40 9 2 20 0 4 20 0 LCD display -18- 7. PARAMETER SETTING VM-5K 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. Prohibition 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 Prohibition Prohibition Caution in serious damage and accidents. -19- 7. PARAMETER SETTING VM-5K 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 SET RES CHK 1 2 3 4 5 6 ON DIP switches -20- 1BY 2BY DBY MS1 MS2 N•A 7. PARAMETER SETTING VM-5K 7-2 BASIC KEY OPERATIONS • SET (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. • RES (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.) • CHK (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 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 -21- Display 7. PARAMETER SETTING VM-5K 7-3 DIP SWITCH SETTING OFF ON 1 1) 1BY(1CH BYPASS) S.W. 2 2) 2BY(2CH BYPASS) S.W. 3 3) DBY(DANGER BYPASS) S.W. 4 4) MS1(MODE-SELECT1) S.W. (normally OFF) 5 5) MS2(MODE-SELECT2) S.W. 6 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. "OFF" Normal monitoring 3) DBY (DANGER BYPASS) Switch "ON" To select DANGER BYPASS function. "OFF" Normal monitoring 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. -22- 7. PARAMETER SETTING VM-5K 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 OFF ON 1 1)1BY(CH1 BYPASS) S.W. 2 2)2BY(CH2 BYPASS) S.W. 3 3) DBY(DANGER BYPASS) S.W. 4 4) MS1(MODE-SELECT1) S.W. (normally OFF) 5 5) MS2(MODE-SELECT2) S.W. 6 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. -23- 7. PARAMETER SETTING VM-5K 7-4-3 DISPLAY SCREEN HIERARCHY The flow chart shows the hierarchy of the PARAMETER SETTING 1 display. PARAMETER SETTING 1 2 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 CH2 OK alarm delay time set 1 -24- 7. PARAMETER SETTING VM-5K 1 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 CH2 OK alarm relay mode set First-out display set Timed OK channel defeat set Address set 2 -25- Display only if used in combination with the VM-5Y3,4,5,6 Relay Module Unit. 7. PARAMETER SETTING VM-5K 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 CH1 DANGER alarm reset CH2 DANGER alarm reset MEAS1 % CH1 ALERT alarm reset MEAS2 CH2 ALERT alarm reset % □□□MEAS2 MEAS1 100 % 100 % CH1 OK alarm reset CH2 OK alarm reset 80 16 CH1 DANGER alarm delay time 80 CH2 DANGER alarm delay time CH1 ALERT alarm delay time 60 12 60 CH2 ALERT alarm delay time CH1 OK alarm delay time 40 8 CH2 OK alarm delay time 40 CH1 DANGER alarm relay mode 20 4 CH2 DANGER alarm relay mode 20 CH1 ALERT alarm relay mode CH2 ALERT alarm relay mode 0 0 CH1 OK alarm relay mode CH2 OK alarm relay mode LCD display First-out display Timed OK channel defeat Address (communication address ID (1 to 10)) -26- 7. PARAMETER SETTING VM-5K MEAS 2 .... Displays the status of each parameter. Display LATCH self-hold MEAS 2 NON LATCH auto-reset Alarm delay time None MEAS1 % MEAS2 ENERGIZED ALARM (Normally DE-ENERGIZED) % □□□MEAS2 MEAS1 100 % Parameter status 100 % DE-ENERGIZED ALARM (Normally ENERGIZED) OFF 80 16 80 ON Alarm delay time 1 sec. 60 12 Alarm delay time 3 sec. 60 Alarm delay time 6 sec. 40 8 40 20 4 20 0 0 LCD display -27- 7. PARAMETER SETTING VM-5K 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 Procedure 1 Key operation SET SET SET SET 9 SET SET 13 Present status Press SET key. SET Specify CH2 DANGER alarm reset mode. Specify CH1 ALERT alarm reset mode. Select latch or non-latch with UP or DOWN key. Present status Press SET key. Specify CH2 ALERT alarm reset mode. Select latch or non-latch with UP or DOWN key. Present status Press SET key. Specify CH1 OK (input abnormal) alarm reset mode. Select latch or non-latch with UP or DOWN key. Present status Press SET key. Press UP or DOWN key. 12 Specify CH1 DANGER alarm reset mode. Select latch or non-latch with UP or DOWN key. Press UP or DOWN key. 10 11 Present status Press SET key. Press UP or DOWN key. 8 Remarks Select latch or non-latch with UP or DOWN key. Press UP or DOWN key. 6 7 Present status Press UP or DOWN key. 4 5 Press SET key more than 5 sec. MEAS 2 (Parameter Status) Press UP or DOWN key. 2 3 MEAS 1 (Parameter) Specify CH2 OK (input abnormal) alarm reset mode. Select latch or non-latch with UP or DOWN key. Present status Press SET key. -28- Specify CH1 DANGER alarm delay time. 7. PARAMETER SETTING VM-5K LCD display Procedure Key operation SET SET 19 SET SET 23 SET • SET Specify CH1 ALERT alarm delay time. Select NON (none), 1 sec., 3 sec., or 6 sec. with UP or DOWN key. Present status Press SET key. Specify CH2 ALERT alarm delay time. Select NON (none), 1 sec., 3 sec., or 6 sec. with UP or DOWN key. Present status Press SET key. Specify CH1 OK (input abnormal) alarm delay time. Select NON (none) with UP or DOWN key. Present status Press SET key. Press UP or DOWN key. 24 25 Present status Press SET key. Press UP or DOWN key. 22 Specify CH2 DANGER alarm delay time. Select NON (none), 1 sec., 3 sec., or 6 sec. with UP or DOWN key. Press UP or DOWN key. 20 21 Present status Press SET key. Press UP or DOWN key. 18 Remarks Select NON (none), 1 sec., 3 sec., or 6 sec. with UP or DOWN key. Press UP or DOWN key. 16 17 MEAS 2 (Parameter Status) Press UP or DOWN key. 14 15 MEAS 1 (Parameter) Specify CH2 OK (input abnormal) alarm delay time. Select NON (none) with UP or DOWN key. Present status Press SET key. To set OK alarm delay time, select NON (none). -29- Specify CH1 DANGER alarm relay mode. 7. PARAMETER SETTING VM-5K LCD display Procedure Key operation SET SET 31 SET SET 35 36 • Present status Press SET key. SET Specify CH1 ALERT alarm relay mode. Select ENERGIZED or DEENERGIZED with UP or DOWN key. Present status Press SET key. Specify CH2 ALERT alarm relay mode. Select ENERGIZED or DEENERGIZED with UP or DOWN key. Present status Press SET key. Specify CH1 OK (input abnormal) alarm relay mode. Select ENERGIZED or DEENERGIZED with UP or DOWN key. Press UP or DOWN key. 34 Specify CH2 DANGER alarm relay mode. Select ENERGIZED or DEENERGIZED with UP or DOWN key. Press UP or DOWN key. 32 33 Present status Press SET key. Press UP or DOWN key. 30 Remarks Select ENERGIZED or DEENERGIZED with UP or DOWN key. Press UP or DOWN key. 28 29 MEAS 2 (Parameter Status) Press UP or DOWN key. 26 27 MEAS 1 (Parameter) Present status Press SET key. Specify CH2 OK (input abnormal) alarm relay mode. Select ENERGIZED or DEENERGIZED with UP or DOWN key. Press UP or DOWN key. Procedures 35 and 36 are displayed only when using the monitor in combination with the VM-5Y3,4,5,6 Relay Module Unit. -30- 7. PARAMETER SETTING VM-5K LCD display Procedure 37 Key operation SET SET SET Present status Press SET key. Specify first-out display. Specify timed OK channel defeat. Select ON (enable) or OFF (disable) with UP or DOWN key. Present status Press SET key. ••• • SET Remarks Select ON (enable) or OFF (disable) with UP or DOWN key. Press UP or DOWN key. 42 43 Present status Press SET key. Press UP or DOWN key. 40 41 MEAS 2 (Parameter Status) Press UP or DOWN key. 38 39 MEAS 1 (Parameter) Present status Press SET key. • Specify address. Select address between 1 and 10 with UP or DOWN key. 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 Mandatory 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. -31- 7. PARAMETER SETTING VM-5K 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 OFF ON 1 1) 1BY(CH1 BYPASS) S.W. 2 2) 2BY(CH2 BYPASS) S.W. 3 3) DBY(DANGER BYPASS) S.W. 4 4) MS1(MODE-SELECT1) S.W. (normally OFF) 5 5) MS2(MODE-SELECT2) S.W. 6 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. -32- 7. PARAMETER SETTING VM-5K 7-5-3 DISPLAY HIERARCHY The flow chart shows the hierarchy of the PARAMETER SETTING 2 display. PARAMETER SETTING 2 5 CH1 DANGER alarm Set range : 0 to 110% of monitor range or ineffective 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 Calibrate measured value YES NO 4 3 Refer to Maintenance for more detail. -33- 7. PARAMETER SETTING VM-5K 4 3 CH1 measured value display CH1 20% measured value check CH2 measured value display CH2 20% measured value check CH1 100% measured value check CH2 100% measured value check 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 Adjustment range : ±5% of monitor range CH2 recorder output span adjustment Adjustment range : ±5% of monitor range Suppression set Adjustment range : 0 to 10% of monitor range 5 -34- 7. PARAMETER SETTING VM-5K 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. MEAS 1 Display Parameter CH1 DANGER alarm set MEAS1 CH2 DANGER alarm set % CH1 ALERT alarm set MEAS2 % CH2 ALERT alarm set □□□MEAS2 MEAS1 100 % 100 % CH1 GAP ALARM HIGH set CH2 GAP ALARM HIGH set 80 16 80 CH1 GAP ALARM LOW set CH2 GAP ALARM LOW set 60 12 60 CH1 20% measured value check CH2 20% measured value check 40 8 40 CH1 100% measured value check CH2 100% measured value check 20 4 20 CH1 measured value span adjustment CH2 measured value span adjustment 0 CH1 recorder output zero adjustment 0 CH2 recorder output zero adjustment LCD display CH1 recorder output span adjustment CH2 recorder output span adjustment Suppression set -35- 7. PARAMETER SETTING VM-5K MEAS 2 .... Displays the status of each parameter. Display MEAS 2 Parameter status Disable MEAS1 Error % MEAS2 % □□□MEAS2 MEAS1 100 % 100 % 80 16 80 60 12 60 40 8 40 20 4 20 0 0 LCD display • 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. -36- 7. PARAMETER SETTING VM-5K 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. LCD display Procedure 1 2 3 Key operation SET CHK SET CHK 4 5 SET CHK 6 7 SET CHK 8 9 SET 10 11 SET MEAS 1 (Parameter) MEAS 2 (Parameter Status) Remarks Specify CH1 DANGER alarm. Press SET key more than 5 sec. Present status Press CHECK and UP or DOWN key. 0 to 110% of Fix digit with CHECK key monitor range and specify value with UP or DOWN key. Disabled Press SET key. Present status Press CHECK and UP or DOWN key. 0 to 110% of Fix digit with CHECK key monitor range and specify value with UP or DOWN key. Disabled Press SET key. Present status Specify CH1 ALERT alarm. Press CHECK and UP or DOWN key. 0 to 110% of Fix digit with CHECK key monitor range and specify value with UP or DOWN key. Disabled Press SET key. Present status Specify CH2 ALERT alarm. Press CHECK 0 to 110% of and UP or DOWN key. monitor range and specify value with UP or DOWN key. Disabled Press SET key. Present status Press UP or DOWN key. 0.0 to -20.0V Specify value with UP or DOWN key. Disabled Press SET key. Present status -37- Specify CH2 DANGER alarm. Fix digit with CHECK key Specify CH1 GAP ALARM HIGH. Specify CH2 GAP ALARM HIGH. 7. PARAMETER SETTING VM-5K LCD display Procedure Key operation 12 13 SET 14 15 SET 16 MEAS 1 (Parameter) MEAS 2 (Parameter Status) Remarks Press UP or DOWN key. 0.0 to -20.0V Specify value with UP or DOWN key. Disabled Press SET key. Present status Press UP or DOWN key. 0.0 to -20.0V Specify value with UP or DOWN key. Disabled Press SET key. Present status Press UP or DOWN key. 0.0 to -20.0V Specify value with UP or DOWN key. Disabled Specify CH1 GAP ALARM LOW. Specify CH2 GAP ALARM LOW. Measured value calibration not carried out (proceed from procedure 18 to 25) 17 SET Press SET key. Present measured value CH1 measured value display. 18 SET Press SET key. Present 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. 17 SET Press SET key. Present measured value Specify CH1 20% measured value check. 18 CHK Press CHECK key. Present measured value Check with CHECK key. 19 --- -------------- Present measured value Specify CH2 20% measured value check. Press CHECK key. Present measured value Check with CHECK key. -------------- Present measured value Specify CH1 100% measured value check. Press CHECK key. Present measured value Check with CHECK key. -------------- Present measured value Specify CH2 100% measured value check. Press CHECK key. Present measured value Check with CHECK key. 20 CHK 21 --- 22 CHK 23 --- 24 CHK -38- 7. PARAMETER SETTING VM-5K LCD display Procedure 25 Key operation SET CHK 26 27 SET CHK 28 29 SET CHK 30 31 SET CHK 32 33 SET CHK 34 35 36 37 SET CHK SET 38 39 • SET MEAS 1 (Parameter) Press SET key. MEAS 2 (Parameter Status) Remarks Present measured value Specify CH1 measured value span adjustment. Set gain with CHECK key ±5% of and adjust recorder output monitor range with UP or DOWN key. Press CHECK and UP or DOWN key. Present measured value Press SET key. Specify CH2 measured value span adjustment. Set gain with CHECK key ±5% of and adjust recorder output monitor range with UP or DOWN key. Press CHECK and UP or DOWN key. Press SET key. Present measured value Specify CH1 recorder output zero adjustment. Press CHECK and UP or DOWN key. Present measured value Set gain with CHECK key and adjust recorder output with UP or DOWN key. Press SET key. Present measured value Specify CH2 recorder output zero adjustment. Press CHECK and UP or DOWN key. Present measured value Set gain with CHECK key and adjust recorder output with UP or DOWN key. Press SET key. Present measured value Specify CH1 recorder output span adjustment. Press CHECK and UP or DOWN key. Present measured value Set gain with CHECK key and adjust recorder output with UP or DOWN key. Press SET key. Present measured value Specify CH2 recorder output span adjustment. Press CHECK and UP or DOWN key. Present measured value Set gain with CHECK key and adjust recorder output with UP or DOWN key. Press SET key. Present status Specify suppression set value. Press UP and DOWN key. 0 to 10% of monitor range Press SET key. Present status Return to procedure 1. Specify value with UP or DOWN key. The display is reset to normal if there is no key operation for approx. 60 sec. -39- 8. FUNCTIONAL DIAGRAM VM-5K 8-1 BLOCK DIAGRAM -40- 8. FUNCTIONAL DIAGRAM VM-5K 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 -41- 8. FUNCTIONAL DIAGRAM VM-5K 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. -42- 9. MAINTENANCE VM-5K 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 Mandatory combination with this monitor unit. • Warning Make sure to turn the power off before wiring work to prevent accidents due to electric shock. -43- 9. MAINTENANCE VM-5K 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. Mandatory Warning 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. IN COM. DC voltage generator NC ALE NO NC OK NO A1 B1 IN IN A2 B2 COM COM A3 B3 PWR PWR A4 B4 REC REC A5 B5 REC- REC A6 B6 BUF BUF A7 B7 COM COM B8 A8 NC NC B9 A9 DAN DAN B10 A10 NO NO B11 A11 NC NC B12 A12 ALE ALE B13 A13 NO NO B14 A14 SEQ NC B15 A15 COM OK B16 A16 P-S NO B17 A17 RES L1 B18 A18 COM L2 A19 FG Tester B19 FLT Tester VM-5G Single Unit Instrument Rack Input/output terminal block -44- 9. MAINTENANCE VM-5K 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 LOW limit HIGH limit (VDC) (VDC) VK-202A -1.4 -18.8 --- FK-202F -1.4 -17.0 Barrier used -1.4 -18.0 --- -1.4 -15.4 Barrier used --- +5.5 --- Input transducer VK-302P VC Note Target material SCM440 --- (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 transducer • Reference voltage (VDC) VK,FK Series -9.0 VC Series +2.5 The reference voltages used for the operation test here are random values. -45- 9. MAINTENANCE VM-5K (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). In auto-reset mode, OK is reset automatically after approx. 15 sec. (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). In auto-reset mode, OK is reset automatically after approx. 15 sec. -46- 9. MAINTENANCE VM-5K 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. • Mandatory • • Warning 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. • The machine is not protected during operation test. • 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. IN COM. DC voltage generator NC DAN NO Function generator NC ALE NO A1 B1 IN IN A2 B2 COM COM A3 B3 PWR PWR A4 B4 REC REC A5 B5 REC- REC A6 B6 BUF BUF A7 B7 COM COM B8 A8 NC NC B9 A9 DAN DAN B10 A10 NO NO B11 A11 NC NC B12 A12 ALE ALE B13 A13 NO NO B14 A14 SEQ NC B15 A15 COM OK B16 A16 P-S NO B17 A17 RES L1 B18 A18 COM L2 A19 FG Tester B19 FLT Tester VM-5G Single Unit instrument Rack Input/output terminal block -47- 9. MAINTENANCE VM-5K 9-3-2 VERIFICATION OF OPERATION (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 New Model Code No. □□11 VM-5K-□□12 VM-5K-□□13 VM-5K-□□14 VM-5K-□□15 VM-5K- Reference Sine Wave Voltage Reference Voltage Reference Sine Wave Frequency At 100% input At 0% input (VDC) (mVrms) (mVrms) (Hz) -9±1 Shown on name plate 0.0 30±5 -9±1 Shown on name plate 0.0 50±5 -9±1 Shown on name plate 0.0 100±5 -9±1 Shown on name plate 0.0 100±5 -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. -48- 9. MAINTENANCE VM-5K 9-4 VERIFICATION OF MEASURED VALUE AND RECORDER OUTPUT This clause is used to test the measured value and recorder output. • Mandatory 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. • Warning The machine is not protected during operation test. 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. IN COM. REC+ DC voltage generator REC- Function generator DMM A1 B1 IN IN A2 B2 COM COM A3 B3 PWR PWR A4 B4 REC REC A5 B5 REC- REC A6 B6 BUF BUF A7 B7 COM COM B8 A8 NC NC B9 A9 DAN DAN B10 A10 NO NO B11 A11 NC NC B12 A12 ALE ALE B13 A13 NO NO B14 A14 SEQ NC B15 A15 COM OK B16 A16 P-S NO B17 A17 RES L1 B18 A18 COM L2 B19 A19 FLT FG VM-5G Single Unit Instrument Rack Input/output terminal block -49- 9. MAINTENANCE VM-5K 9-4-2 VERIFICATION OF OPERATION (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. -50- 9. MAINTENANCE VM-5K 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 Mandatory 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. • Warning The machine is not protected during operation test. 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. IN COM. REC+ DC voltage generator REC- Function generator DMM A1 B1 IN IN A2 B2 COM COM A3 B3 PWR PWR A4 B4 REC REC A5 B5 REC- REC A6 B6 BUF BUF A7 B7 COM COM B8 A8 NC NC B9 A9 DAN DAN B10 A10 NO NO B11 A11 NC NC B12 A12 ALE ALE B13 A13 NO NO B14 A14 SEQ NC B15 A15 COM OK B16 A16 P-S NO B17 A17 RES L1 B18 A18 COM L2 A19 FG B19 FLT VM-5G Single Unit Instrument Rack Input/output terminal block -51- 9. MAINTENANCE VM-5K 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. -52- 9. MAINTENANCE VM-5K 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 UPJ1E101M Nichicon Component Type Manufacturer Aluminum electrolytic capacitor C1 UPJ1C471M Nichicon Component Type Manufacturer Aluminum electrolytic capacitor C1P, C2P, C3P UPJ1V101M Nichicon Aluminum electrolytic capacitor C206, C207, C208 Q’ty 3 Isolation Card Q’ty 1 Seismic / pipe filter • Mandatory Q’ty 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. Prohibition -53- 9. MAINTENANCE VM-5K 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. Component Type LCD unit with Acrylic cover Q’ty 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. Caution Prohibition 1902BHS Manufacturer 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. Lock Connector Lock Main board (soldered side) Monitor unit 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. LCD unit Acrylic cover Sleeve Main board (soldered side) Monitor unit 4 Replace the LCD unit by reversing the above sequence. • Confirm that connector is connected firmly. Caution -54- 9. MAINTENANCE VM-5K 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. 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. VR 1 Flat blade screwdriver Back of face plate • LCD Unit Be noted that the characteristic of LCD contrast adjustment is as follows. Contrast 1 turn -55- 9. MAINTENANCE VM-5K 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. 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 VR 2 Flat blade screwdriver LCD Unit Back of face plate -56- VR 1 desired brightness level. 10. TROUBLESHOOTING VM-5K 10-1 LCD DISPLAY CONTENT ABNORMAL Start Display is abnormal. Display is blank. Is power supply on? NO Turn on power supply. NO Connect correctly. NO Insert Main board firmly by pushing Main board frame. NO Insert LCD connector firmly. NO Perform LCD contrast adjustment. YES Are connections to power supply terminals correct? YES Turn on power supply again. Is Main board inserted firmly to the rack? YES Is LCD connector inserted firmly? YES Is display normal? YES OK Is display normal? YES OK -57- NO Repair VM-5. 10. TROUBLESHOOTING VM-5K 10-2 OK DISPLAY FLASHES Start Wait approx.15 sec., then reset key. Did flashing stop? YES OK YES Insert Main board firmly by pushing Main board frame. NO Is Main board inserted firmly to the rack? NO Run self-diagnosis (press CHK key). Diagnostic findings OK? NO Display Sensor wire breakage, sensor gap too lage. Check sensor set gap and cable between sensor and monitor Display Sensor short-circuit, sensor gap too small. Check sensor set gap and cable between sensor and monitor Display Input is outside input range of built-in A/D converter (H or 5V end). Check input voltage of monitor. Display Input is outside input range of built-in Check input voltage of monitor. YES Repair VM-5. A/D converter (L or 0V end). -58- 10. TROUBLESHOOTING VM-5K 10-3 MEASURED VALUE ABNORMAL Start Check sensor set gap. Is gap voltage normal? NO Check transducer. YES Is Main board inserted firmly to the rack? Check signal cable and connection. NO Insert Main board firmly by pushing Main board frame. YES Check transducer characteristic. Check sensor, cable and driver connection. Repair VM-5. -59- 10. TROUBLESHOOTING VM-5K 10-4 OK (INPUT ABNORMAL ALARM) DOES NOT OPERATE Start Is channel bypass in operation? NO YES Repair VM-5. Release channel bypass. 10-5 ALERT (ALE) ALARM DOES NOT OPERATE Start Is sequence circuit n operation? NO YES Release sequence circuit. Is alarm limit value set within measurement range? NO Set within measurement range. YES Is channel bypass in operation? NO YES Release channel bypass. -60- Repair VM-5. 10. TROUBLESHOOTING VM-5K 10-6 DANGER (DAN) ALARM DOES NOT OPERATE Start Is sequence circuit in peration? NO YES Release sequence circuit. Is alarm limit value set within measurement range? NO Set within measurement range. YES Is DANGER bypass in operation? NO YES Release DANGER bypass. YES Is channel bypass in operation? NO YES DANGER alarm in operation? Release channel bypass. Repair VM-5. YES OK 10-7 ERRONEOUS OPERATION OF DANGER (DAN) / ALERT (ALE) ALARM Start Erroneous operation due to noise. Noise countermeasures. Increase alarm delay time. -61- 10. TROUBLESHOOTING VM-5K 10-8 NO RECORDER OUTPUT Start Are output terminals connected correctly? NO Connect correctly. YES Repair VM-5. 10-9 GAP ALARM DOES NOT OPERATE Start Is alarm set value within measurement range? NO Set within measurmeent range. YES Is channel bypass in operation? NO YES Release channel bypass. Repair VM-5. -62- 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 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 : [email protected]