Maintenance, inspection and part replacement | Hitachi J300U Series

CAUTION

*Radiating fin and discharging resistor will have high temperature. Be sure not to touch them.

Otherwise, there is a danger of getting burned.

*Low to high speed operation of the inverter can be easily set. Be sure to operate it after checking the tolerance of the motor and machine. Otherwise, there is a danger of injury.

............ p. 6-2

............ p. 6-2

*If a motor is operated at a frequency higher than 60Hz, be sure to check ............ p. 6-2 the speeds of the motor and the machine with each manufacturer, and

after getting their consent, operate them. Otherwise, there is a danger of machine breakage.

* Check the following before and during the test run.	............ p. 6-3
Otherwise, there is a danger of machine breakage.

•Was the short-cut bar between +1 and + connected?

•Was the direction of the motor correct?

•Was the inverter tripped during acceleration or deceleration?

•Were the rpm and frequency meter correct?

•Were there any abnormal motor vibrations or noise?

•When overcurrent tripping or overvoltage tripping occurs during the test run, increase the acceleration time or deceleration time.

4.Maintenance, inspection and part replacement

WARNING

*Be sure to turn off the power supply during maintenance and inspection.

*After the power supply has been turned off, you must always wait 10 minutes so that DC bus capacitors can discharge then start maintenance and inspection after the CHARGE lamp on the printed-circuit board has gone out. (Immediately after the lamp has gone out, there will be a residual voltage of about 50 V DC in the DC bus intermediate circuit.) Perform the work after the CHARGE lamp has stopped flickering.

*Make sure that only qualified persons will perform maintenance, inspection and part replacement. (Before starting the work, remove metallic objects from your person (wristwatch, bracelet, etc.)

(Be sure to use tools protected with insulation.)

Otherwise, there is a danger of electric shock and/or injury.

........... p. 10-1

........... p. 10-1

........... p. 10-1

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Hitachi J300U Series instruction manual Maintenance, inspection and part replacement

Contents

J300 Series Definitions and Symbols Safety Precautions Page Iii Pollution degree Aug Revision History Table Table of Contents Installation Safety Precautions Inputoutput Bad example Input phase failure protectionNoise filter Fuse Good example Power supply Control and operation Maintenance, inspection and part replacement Appendix Turn on and OFF Good example Megohm-meterEarth leakage breaker Mgo Motor Earth LeakageSurge absorber breaker PowerSupply Leading power factor capacitor General Caution To be grounded or shielded wire Inspection Upon Unpacking Contents of Specifications Label Names of Parts Appearance and Names of Parts Installation Be sure to check the ambient temperature Vent hole Cm or more Precaution for installation and wiring Wiring Power supply ELB Wiring the Power Supply and MotorL3 RB + T1 T2 T3 PE Dynamic Braking Resistor Braking Units Inverter At the site Improper grounding Proper grounding Inverter CM2 AL2 AL1 AL0 Wiring of Control Circuit TerminalsFM CM1 PLC P24 CM2 AL2 AL1 AL0 Page Connection to the Programmable Controller 200V class Wiring Equipment, Options EMI filter, etcStandard equipment Power supply Magnetic Inverter RB P Terminal Run signal 27 VDC Intelligent output signal Free run input signalCurrent frequency command Common for frequency command Output PLC Control Circuit Terminals Cosø=0.4 10 mA 30 VDC Resistor load Abnormal, Power offAL0-AL1 open Contact rating 250 VAC Resistor load Terminal Connection Diagram Before Starting Operation OperationPage Operating with digital operator Running from external commandFor sink type wiring Test Run Key to Key and then press PressKey to set Press Key to Key to set Press Contact b Contact a Contact specification Resetting Any one of A, B and C is possible Func Function key Up key, Down key Power Lamp Monitor LED displaySTOP/RESET key Operation of the Digital Operator Key Description Key is pressed, the extension function mode can be selected Explanation of Screen Display Output frequency Monitor modeTransition of Each Code Digital Operator Initialization List Screen display Explanation of Modes Monitor mode contents Is displayed 10.00 to 100.00 toTrip current Trip cause Frequency Function modeSetting Direction Running Tion time 1 Manual torque boost Accelera- tion time 1 Decelera Run Extension function Motor receiving voltage setting How to Delete Trip History Data , Extension function mode contents Initial value Constant between 99.9 is set in units Start frequency adjustmentExtension Function Code Speed control response constant Frequency upper, lower limiter Multispeed setting Extension Function Code Contents and displayCarrier frequency setting Frequency command sampling frequency setting 100 150 Setting method 20% 120%Motor poles setting for motor speed monitor Initial value Func Same as A26 Setting endInitial value Setting method 400 External frequency External Operation will be stoppedInverter requiring an external resistor T1 + t2 + t3 100 Model 055, 075LF Terminal connection example Output full-scale valueCurrent monitor Torque monitor 200% of the rated torque Only optionally set frequency Frequency arrival signal output methodAt the time of constant Speed arrival Swfw Swjg Frequency at the start of running Base frequency settingMaximum frequency PID Motor data selection This function is valid when 0 is set for Setting methodAuto tuning setting Ro-T- option selection Unusable Input Terminal Setting Extension Function Code Function name Frequency arrival signalSignal during running Setting method is the same Overtorque signal Note As that of the input terminals Input Protection Functions Other display Error Messages and Diagnosis Troubleshooting BRD%ED Ground fault on Check Countermeasure SymptomDisplay on Appropriate value Trouble shooting HRW-OJ Page Insulation resistance tests, withstand voltage tests Maintenance and InspectionMaintenance and Inspection Precautions Inspection Items Bad example Time 10-2Applied voltage Good example Time Megohm-meter Location Daily Periodic 10-3Daily Inspection and Periodic Inspection 1/3 Instruments Daily Inspection and Periodic Inspection 2/3 10-4 No blown out LEDs ReplacementDaily Inspection and Periodic Inspection 3/3 Parts to be measured Measurement Method for I/O Voltage, Current, and Power Measurement method for output voltage 10-7 11-1 Standard SpecificationsCommon Standarsd Specifications Description Input voltage Class Model Name Type 11-2 11-3 Individual Specification USA version J300 12-1 Functions When Using the Optional Remote OperatorConnecting the remote operator Same as VWA, J100 Switch Model J300 series12-2 12-3 Monitor mode Term Lllllllll 12-4 12-5 Function mode 12-6 12-7 12-8 12-9 12-10 12-11 12-12 12-13 12-14 12-15 12-16 For error contents, seeOther displays Fmax Fch Forced rewriting Description AlarmValue. Note that when Automatically rewritten 12-17 12-18 DimensionsRemote operator, copy unit 12-19 Copy Unit Function 12-20 Data to be copied by the copy unit Precautions for copying 13-1 ServicePage Precautions Autotuning start Setting method Select 2 Motor in the third hierarchy New remote operatorSelect 3 Function in the first hierarchy Select 1 Control in the second hierarchy Display in the failure state Tuning ENDTuning NG Select Sensorless vector control by Control method Running method by autotuning data 0VC to 4SLV in the fourth hierarchy Change the content of 6 Mode fromWhen the data is changed, press Key Select 1 V/f in the third hierarchy Carrier Large load 50% Range where the energy conservation is effectiveEnergy conservation running Outline of the function Initial display SPD Precautions Principle Setting process Digital operator Select Running mode selec Tion STR Mode 2GOD IPS Trip OFF IPS Powr Alarm Time chart for retry mode Digitaloperator Commercial power source switchingSet TRM terminal mode Function mode F-34 Elbc Appendix 3 Capacitor Life Curve Ambient Temperature Hours Operation/day Capacitor life year Deceleration Appendix 4 Acceleration/Deceleration Curve ConstantsCurve RU curve Acceleration AUX When V/f control is selected Function modeWhen sensor-less vector control is selected Function mode Operation conditions Load varies Operation conditions Phenomena Improvements Display, etcQuickly varying load Motor revolution varies when AUX K 022.00 kW 005.50 kW Select the most approximate value Select the motor capacity which is the most approxiMate to the total capacity of the motors used For example, 7.5 kW, 5.5 kW, and 3.7 kW Function name Second function setting Appendix 6 Supplementaly Explanation of the Function Mode HRW DRW Monitor modeHOP, HRW DOP, DRW SET Selectrem 4RESETInitreseton 1F-SET 3LINE Acclinel Controlvc1AUTO 0NOR 2DATA 0NOR 2FRS 1ZST Runfrs ZST 3LINE Decline L4GAIN Decgain 2TIME 2LIMH 1LEVEL2CONST1.0 1LIML IN-TM4FRS IN-TM1RSIN-TM2AT IN-TM3JG 1RYA 3RUN 1BAUD2NUMBER1 0EVN PID Gain Wiring SketchAppendix 8 PID Function Data Setting Method