Quickly varying load, Load varies | Hitachi J300U Series guide

A-22

No.

Operation conditions

Phenomena

Improvements

NOTE: The setting methods shown below

Display, etc.

apply to DOP and DRW operations.

4

Quickly varying load

Load

When sensor-less vector control is selected

➤

Function mode

• F-04

NOTE: Select AUT if

CONTROL SLV

➤ t

the automatic

• F-05

Revolution

tuning data is

AUX DATA NOR

used.)

➤

a. AUX

J

001.22 kgm2 ➝ 003.22 kgm2

Increase

➤

the initial value.

b. AUX

Kp

002.00 ➝ 001.00

The motor revolution varies when

the initial value.

the load varies.

Decrease

NOTE: When sensor-less vector is selected, driving of motor at low speed whose constant is different from the factory settings may cause reverse run.

In this case, measure the motor constant using the automatic tuning mode or reduce the setting value of primary resistor (R1) of the motor.

Image 134

Hitachi J300U Series Operation conditions Phenomena Improvements Display, etc, Quickly varying load, Load varies

Contents

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