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Hitachi WJ Series

Hitachi WJ Series
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NT361X
User's Guide
HITACHI Inverter
WJ Series C1
Read this "User's Guide", and keep it handy for future reference.
S E R I E S
WJ
Introduction/Cautions
Contents
1 Safety Instructions/Risks
2 Outline of This User's Guide/
Procedure for Operation
3 Main Body of the Product
4 Installation
5 Wire Connection
6 Operation Check/Residual Risk
7 Keypad and Related Functions
8 Mandatory setting for Motor Drive and
Test Run
9 Inverter Functions
10 Monitor Functions
11 RS485 Communication
12 ProDriveNext/EzSQ
13 Option Board
14 Safety Function STO
15 Tips/FAQ/Troubleshooting
16 Maintenance and Inspection
17 Specifications/Dimensions/Derating
18 List of Parameters/Modbus Coil/
Register Numbers
Appendix
Replacement from WJ200
Check
Necessary
Mandatory

Table of Contents

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Hitachi WJ Series Specifications

General IconGeneral
BrandHitachi
ModelWJ Series
CategoryInverter
LanguageEnglish

Summary

Chapter 1 Safety InstructionsRisks

1.1 Warning Indications and Symbols

Defines warning indications and symbols used for safety precautions.

1.2 Cautions

Provides important precautions for proper use, installation, wiring, operation, maintenance, and disposal.

1.3 Compliance to European Directive (CE)

Details EMC and Machinery Directive compliance requirements and notes for European markets.

1.4 Compliance to UL Standards

Summarizes requirements for UL standard compliant inverter installation, including fuse ratings and wiring.

Chapter 2 Outline of This Users GuideProcedure for Operation

2.1 What Is Written in this Users Guide

Explains the scope, target audience, unit system, and what this guide covers.

2.2 Procedure for Operation (Flowchart)

Provides a step-by-step flowchart for installing a new inverter and replacing WJ200.

Chapter 3 Main Body of the Product

3.1 Confirmation at the Time of Purchase

Details what to check upon unpacking and confirming the product and included items.

3.2 Appearance of the Product and Part Name

Shows the appearance of different inverter models and identifies their parts.

Chapter 4 Installation

4.1 Installation Environment

Outlines precautions for installation, including transportation, ambient temperature, humidity, air, and mounting position.

Chapter 5 Wire Connection

5.1 Remove the Terminal Block Cover

Explains how to remove and attach the terminal block cover for accessing and wiring.

5.2 Main Circuit Terminal

Details the configuration of main circuit terminals for power supply, motor, and braking resistor wiring.

5.3 Applicable Peripheral Device

Lists and describes peripheral devices applicable for inverter wiring, such as breakers, reactors, and filters.

5.4 Control Circuit Terminal

Describes the configuration and wiring of control circuit terminals for various input/output signals.

Chapter 6 Operation CheckResidual Risk

6.1 Overview of Residual Risk Checklist

Explains the classification of residual risks and points to check before turning on power.

6.2 Residual Risk Checklist

Provides a detailed checklist of potential hazards and protective measures during operation stages.

Chapter 7 Keypad and Related Functions

7.1 How to Use Keypad

Explains the names and functions of the keypad parts, LEDs, and operation system.

7.2 Functions Related to Keypad

Covers features like parameter display restriction, initialization, password protection, and display settings.

Chapter 8 Mandatory Setting for Motor Drive and Test Run

8.1 Mandatory Setting for Operation

Details essential parameters for motor and inverter operation, including load rating, motor specs, and electronic thermal settings.

8.2 Test Run

Guides through performing test runs with the motor only and with a machine load to confirm proper operation.

8.3 Carrying Out Motor Auto-tuning

Explains the procedure for auto-tuning to measure motor constants for improved control accuracy.

Chapter 9 Inverter Functions

9.1 Selecting RUN Command and Alarm Reset

Describes various methods for selecting RUN commands and resetting alarms.

9.2 Selecting Frequency Command

Details different input sources for setting the frequency command, including keypad, analog, pulse, and communication.

9.3 Using Motor AccelerationDeceleration Function

Explains how to change acceleration/deceleration times, patterns, and use hold functions.

9.4 Limiting Frequency CommandRUN Command

Covers setting upper/lower limits for frequency and restricting RUN command direction.

9.5 Selecting Control Mode for the Motor and Load

Explains various motor control methods like V/f control, sensorless vector control, and their applications.

9.6 SpeedTorque Control According to Load

Details how to control speed and torque based on load conditions, including torque limit and bias.

9.7 Selecting StartStop Modes

Describes various start and stop methods, including gradual voltage increase, DC braking, and frequency matching.

9.9 Using Trip Prevention Functions

Covers functions to prevent overloads, overcurrents, overvoltages, and manage restarts after power interruptions.

9.10 Using System Protection Functions

Explains carrier frequency adjustment, automatic reduction, and external tripping for system protection.

9.11 Outputting Warning Signals to Terminals

Details how to use output terminals to signal alarms, major failures, warnings, and component life status.

9.12 Outputting Running Status to Terminals

Explains how to output signals indicating running status, forward/reverse rotation, and inverter readiness.

9.13 Outputting Signals According to the Output Frequency

Describes how to output signals when the output frequency reaches or exceeds set values, or is close to 0 Hz.

9.14 Performing Positioning Operation (Simple Position Control Function)

Details the simple position control function, including homing, preset positions, and brake control.

9.15 Functions with External Signal Input

Explains how to assign functions to input terminals and adjust I/O signal response.

9.16 Functions with External Signal Output

Covers using output terminals for various signals and combining them using logical operations.

Chapter 10 Monitor Functions

10.1 Check the Operation Data

Details how to monitor output frequency, current, direction, speed, torque, voltage, and power.

10.2 Check IO Terminal Related Data

Explains how to monitor the status of input and output terminals, including analog and pulse inputs.

10.3 Check the Information Related to the Internal Status of the Inverter

Covers monitoring accumulated run time, power-on time, cooling fin temperature, and lifetime diagnosis results.

10.4 Check EzSQ FunctionPID Function Related Data

Lists monitors for EzSQ program execution and PID control function data.

10.5 Check Trip and Warning Related Information

Details how to check the number of trips, trip history, and warning information.

Chapter 11 RS485 Communication

11.1 Modbus-RTU

Describes Modbus-RTU communication specifications, wiring, process, and message configuration.

11.2 Explanation of Modbus-RTU Function Codes

Explains various Modbus function codes like Read Coil Status, Write Holding Registers, and Loop-back Test.

11.3 Modbus Mapping Function

Details how to map registers for inverter replacement without changing the host program.

11.4 Inter-inverter Communication Function EzCOM

Explains the EzCOM function for coordinated operation between inverters without external equipment.

Chapter 12 ProDriveNextEzSQ

12.1 Inverter Configuration Software ProDriveNext

Outlines the functions of ProDriveNext for parameter management, monitoring, and EzSQ program editing.

12.2 Program Operation Function EzSQ

Explains EzSQ for simple sequencing control using a BASIC-like language.

Chapter 13 Option Board

13.1 Using Option Board for WJ200 Series

Lists available option boards and notes on mounting dimensions and replacement.

13.2 Settings for Each Option Board

Details common settings for communication option boards like CC-Link, EtherCAT, PROFIBUS, and PROFINET.

Chapter 14 Safety Function STO

14.1 Using the Safety Function STO (Safe Torque Off)

Describes the STO function, its wiring, and status indication.

Chapter 15 TipsFAQTroubleshooting

15.1 Self Diagnosis of Problems

Provides a procedure for troubleshooting when the unit does not operate as intended or displays unusual information.

15.2 Troubleshooting for Protection Functions Related Error

Details error codes, descriptions, possible causes, and countermeasures for protection functions.

15.3 Troubleshooting for Warning Functions Related Error

Explains warning displays and their conditions, and how to resolve them.

15.4 How to Check When Something Is Wrong

Guides on troubleshooting issues not covered by trip or warning displays, like incorrect operation or parameter settings.

Chapter 16 Maintenance and Inspection

16.1 Cautions for Maintenance and Inspection

Lists essential safety precautions and prohibitions for performing maintenance and inspection.

16.2 Daily Inspection and Periodic Inspection

Provides an inspection list for general inverter checks, main circuit, control circuit, and cooling system.

Chapter 17 SpecificationsDimensionsDerating

17.1 Standard Specifications

Details electrical specifications for single-phase, three-phase 200V, and three-phase 400V classes.

17.2 External Dimensions

Provides detailed external dimensions and mounting information for various models.

17.3 Current Derating

Explains current derating characteristics based on ambient temperature and installation conditions.

Chapter 18 List of ParametersModbus CoilRegister Numbers

18.1 List of Modbus Coil NumbersSpecial Register Numbers

Lists Modbus coil numbers and special register numbers with their functions and data.

18.2 List of Parameters and Modbus Holding Registers

Provides a comprehensive list of parameters and their corresponding Modbus holding registers with details.

Appendix

A.1 Replacement from WJ200

Compares external dimensions, terminal blocks, functions, and data copy between WJ200 and WJ-C1.

A.2 Glossary

Provides explanations of terms and abbreviations used in the manual.

A.3 Revision history

Lists revision details and dates for the document.

A.4 Index

An alphabetical index of terms and their corresponding page numbers for quick reference.

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