Hitachi J300U Series instruction

Symptom				Probable cause		Countermeasure

Overload		Is the			torque boost too high ?	Decrease the torque boost.
Overload		Is the			torque boost too high ?	Decrease the torque boost.
(Electronic		Do the				Reset the electronic thermal characteristics
(Electronic		Do the	electronic thermal characteristics			Reset the electronic thermal characteristics
thermal		match the set characteristics of the				and level.
trip)		motor ?
(Low
frequency
zone)

The input		Is the input voltage high ?				Lower the input voltage.
voltage		Is the equipment stopped with the				Set a deceleration time which is a little longer.
trips.		inverter DC voltage increased after				Increase the AVR set value above the current
		sudden deceleration ?				input voltage and lower the V gain by
						the ratio.

9-8

Image 81

Hitachi J300U Series instruction manual

Contents

J300 Series Definitions and Symbols Safety Precautions Page Iii Pollution degree Aug Revision History Table Table of Contents Installation Safety Precautions Inputoutput Input phase failure protection Noise filter Fuse Good example Power supplyBad example Control and operation Maintenance, inspection and part replacement Appendix Megohm-meter Earth leakage breaker MgoTurn on and OFF Good example Earth LeakageSurge absorber breaker Power Supply Leading power factor capacitorMotor 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 L3 RB + T1 T2 T3 PE Wiring the Power Supply and MotorDynamic Braking Resistor Braking Units ELB Inverter At the site Improper grounding Proper grounding Inverter Wiring of Control Circuit Terminals FM CM1 PLC P24 CM2 AL2 AL1 AL0CM2 AL2 AL1 AL0 Page Connection to the Programmable Controller Standard equipment Power supply Wiring Equipment, Options EMI filter, etcMagnetic 200V class Inverter RB P Terminal Current frequency command Free run input signalCommon for frequency command Output Run signal 27 VDC Intelligent output signal PLC Control Circuit Terminals AL0-AL1 open Abnormal, Power offContact rating 250 VAC Resistor load Cosø=0.4 10 mA 30 VDC Resistor load Terminal Connection Diagram Before Starting Operation OperationPage For sink type wiring Running from external commandTest Run Operating with digital operator Key to set Press Key and then press PressKey to Key to set Press Key to Contact b Contact a Contact specification Resetting Any one of A, B and C is possible STOP/RESET key Power Lamp Monitor LED displayOperation of the Digital Operator Func Function key Up key, Down key Key Description Key is pressed, the extension function mode can be selected Explanation of Screen Display Monitor mode Transition of Each CodeOutput frequency Digital Operator Initialization List Screen display Explanation of Modes Monitor mode contents Trip current 10.00 to 100.00 toTrip cause Is displayed Function mode SettingFrequency 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 Extension Function Code Start frequency adjustmentSpeed control response constant Initial value Constant between 99.9 is set in units Frequency upper, lower limiter Carrier frequency setting Extension Function Code Contents and displayFrequency command sampling frequency setting Multispeed setting Motor poles setting for motor speed monitor Setting method 20% 120%Initial value Func 100 150 Initial value Setting method Setting end400 External frequency Same as A26 Inverter requiring an external resistor Operation will be stoppedT1 + t2 + t3 100 Model 055, 075LF External Current monitor Output full-scale valueTorque monitor 200% of the rated torque Terminal connection example At the time of constant Frequency arrival signal output methodSpeed arrival Only optionally set frequency Swfw Swjg Base frequency setting Maximum frequencyFrequency at the start of running PID This function is valid when 0 is set for Setting method Auto tuning settingMotor data selection Ro-T- option selection Unusable Input Terminal Setting Signal during running Setting method is the same Frequency arrival signalOvertorque signal Note As that of the input terminals Extension Function Code Function name Input Protection Functions Other display Error Messages and Diagnosis Troubleshooting BRD%ED Ground fault on Symptom Display onCheck Countermeasure Appropriate value Trouble shooting HRW-OJ Page Maintenance and Inspection Precautions Maintenance and InspectionInspection Items Insulation resistance tests, withstand voltage tests 10-2 Applied voltage Good example Time Megohm-meterBad example Time Daily Inspection and Periodic Inspection 1/3 10-3Instruments Location Daily Periodic Daily Inspection and Periodic Inspection 2/3 10-4 Replacement Daily Inspection and Periodic Inspection 3/3No blown out LEDs Parts to be measured Measurement Method for I/O Voltage, Current, and Power Measurement method for output voltage 10-7 Standard Specifications Common Standarsd Specifications11-1 Description Input voltage Class Model Name Type 11-2 11-3 Individual Specification USA version J300 Functions When Using the Optional Remote Operator Connecting the remote operator12-1 Switch Model J300 series 12-2Same as VWA, J100 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 For error contents, see Other displays12-16 Value. Note that when Automatically rewritten Forced rewriting Description Alarm12-17 Fmax Fch Dimensions Remote operator, copy unit12-18 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 3 Function in the first hierarchy New remote operatorSelect 1 Control in the second hierarchy Select 2 Motor in the third hierarchy Tuning END Tuning NGDisplay in the failure state Select Sensorless vector control by Control method Running method by autotuning data When the data is changed, press Key Change the content of 6 Mode fromSelect 1 V/f in the third hierarchy 0VC to 4SLV in the fourth hierarchy Carrier 50% Range where the energy conservation is effective Energy conservation running Outline of the functionLarge load 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 Set TRM terminal mode Commercial power source switchingFunction mode F-34 Digitaloperator Elbc Appendix 3 Capacitor Life Curve Ambient Temperature Hours Operation/day Capacitor life year Curve Appendix 4 Acceleration/Deceleration Curve ConstantsRU curve Acceleration Deceleration When sensor-less vector control is selected Function mode When V/f control is selected Function modeOperation conditions AUX Quickly varying load Operation conditions Phenomena Improvements Display, etcMotor revolution varies when Load varies Mate to the total capacity of the motors used Select the motor capacity which is the most approxiFor example, 7.5 kW, 5.5 kW, and 3.7 kW AUX K 022.00 kW 005.50 kW Select the most approximate value Function name Second function setting Appendix 6 Supplementaly Explanation of the Function Mode Monitor mode HOP, HRW DOP, DRWHRW DRW Initreseton 4RESET1F-SET SET Selectrem 1AUTO 0NOR Controlvc2DATA 0NOR 3LINE Acclinel 4GAIN Decgain 3LINE Decline L2TIME 2FRS 1ZST Runfrs ZST 2CONST1.0 1LEVEL1LIML 2LIMH IN-TM2AT IN-TM1RSIN-TM3JG IN-TM4FRS 2NUMBER1 1BAUD0EVN 1RYA 3RUN Wiring Sketch Appendix 8 PID FunctionPID Gain Data Setting Method