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Hitachi J300U Series Megohm-meter, Earth leakage breaker Mgo, Turn on and OFF Good example

Models: J300U Series

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6.Others

WARNING

*Never modify the unit.

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

CAUTION

*Withstand voltage tests and insulation resistance tests (megger tests) are executed before the units are shipped, so that there is no need to conduct these tests before operation.

When conducting megger tests as a part of daily inspection, be sure that these tests are only executed between the main circuit and the ground. Do not execute megger tests on the control circuit.

(L1)	(L2)	(L3) (RB)	(+)	(–)	(T1)	(T2)	(T3)
R	S	T RB	P	N	U	V	W

FM

P24

PLC

FW

• • •

Megohm-meter

Megohm-meter

*Do not attach or remove wiring or connectors (including Digital operator and Remote operator) when power is applied. Also, do not check signals during operation. Otherwise, a trip may occur or a failure may be caused. To stop the operation, be sure to use an operation instruction (FW,REV.) Do not turn power off within three minutes after it is turned on, or vice versa.

*Do not stop operation by switching off the electromagnetic(Mgo) contactors on the primary or secondary sides of the inverter.To stop the operation, be sure to use an operation instruction (FW,REV.) Do not turn power off within three

minutes after it is turned on, or vice versa.

(Bad example)

Power supply

Earth leakage breaker

	➤
➤	Mgo
➤

ON,OFF

	➤	ON,OFF
	➤
(L1) (L2) (L3)	➤
(L1) (L2) (L3)	(T1) (T2) (T3)
R , S , T	U , V , W	Motor
		Motor
	FW
	INV
	➤

PV24

Turn ON and OFF (Good example)

When there has been an instantaneous power failure, and if an operation instruction has been given, then the unit may restart operation after the power failure has ended. If there is a possibility that such an occurrence may harm humans, then install an electromagnetic contactor (Mgo) on the power supply side, so that the circuit does not allow automatic restarting after the power supply recovers. If the optional remote operator is used and the retry function has been selected, this will also cause automatic restarting when an operation instruction has been input, so please be careful.

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Hitachi J300U Series instruction manual Megohm-meter, Earth leakage breaker Mgo, Turn on and OFF Good example

Contents

J300 Series Definitions and Symbols Safety Precautions Page Iii Pollution degree Aug Revision History Table Table of Contents Installation Safety Precautions Inputoutput Noise filter Fuse Good example Power supply Input phase failure protectionBad example Control and operation Maintenance, inspection and part replacement Appendix Earth leakage breaker Mgo Megohm-meterTurn on and OFF Good example Supply Leading power factor capacitor Earth LeakageSurge absorber breaker PowerMotor 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 FM CM1 PLC P24 CM2 AL2 AL1 AL0 Wiring of Control Circuit TerminalsCM2 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 Transition of Each Code Monitor modeOutput frequency Digital Operator Initialization List Screen display Explanation of Modes Monitor mode contents Trip current 10.00 to 100.00 toTrip cause Is displayed Setting Function modeFrequency 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 Maximum frequency Base frequency settingFrequency at the start of running PID Auto tuning setting This function is valid when 0 is set for Setting methodMotor 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 Display on SymptomCheck Countermeasure Appropriate value Trouble shooting HRW-OJ Page Maintenance and Inspection Precautions Maintenance and InspectionInspection Items Insulation resistance tests, withstand voltage tests Applied voltage Good example Time Megohm-meter 10-2Bad example Time Daily Inspection and Periodic Inspection 1/3 10-3Instruments Location Daily Periodic Daily Inspection and Periodic Inspection 2/3 10-4 Daily Inspection and Periodic Inspection 3/3 ReplacementNo blown out LEDs Parts to be measured Measurement Method for I/O Voltage, Current, and Power Measurement method for output voltage 10-7 Common Standarsd Specifications Standard Specifications11-1 Description Input voltage Class Model Name Type 11-2 11-3 Individual Specification USA version J300 Connecting the remote operator Functions When Using the Optional Remote Operator12-1 12-2 Switch Model J300 seriesSame 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 Other displays For error contents, see12-16 Value. Note that when Automatically rewritten Forced rewriting Description Alarm12-17 Fmax Fch Remote operator, copy unit Dimensions12-18 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 NG Tuning ENDDisplay 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 Energy conservation running Outline of the function 50% Range where the energy conservation is effectiveLarge 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 HOP, HRW DOP, DRW Monitor modeHRW 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 Appendix 8 PID Function Wiring SketchPID Gain Data Setting Method