Hitachi WJ C1 Series User Manual

Contents
C-9
Chapter 14 Safety Function STO
14.1 Using the Safety Function STO (Safe Torque Off) .................................................................... 14-1-1
14.1.1 STO Function .......................................................................................................................... 14-1-1
14.1.2 STO State Monitor Output (EDM Signal) ............................................................................ 14-1-3
14.1.3 STO Status Indication ............................................................................................................ 14-1-4
Chapter 15 Tips/FAQ/Troubleshooting
15.1 Self Diagnosis of Problems ......................................................................................................... 15-1-1
15.1.1 Procedure for Checking When a Problem Occurs ............................................................ 15-1-1
15.2 Troubleshooting for Protection Functions Related Error ......................................................... 15-2-1
15.2.1 Checking Trip Information .................................................................................................... 15-2-1
15.2.2 Error Code List and Countermeasures ................................................................................ 15-2-2
15.3 Troubleshooting for Warning Functions Related Error ............................................................ 15-3-1
15.3.1 Warning Display ...................................................................................................................... 15-3-1
15.3.2 Other Displays ........................................................................................................................ 15-3-2
15.4 How to Check When Something Is Wrong ................................................................................ 15-4-1
15.4.1 Troubleshooting Other Than Trip and Warning ................................................................ 15-4-1
Chapter 16 Maintenance and Inspection
16.1 Cautions for Maintenance and Inspection ................................................................................ 16-1-1
16.1.1 Daily Inspection ...................................................................................................................... 16-1-2
16.1.2 Cleaning ................................................................................................................................... 16-1-2
16.1.3 Periodic Inspection ................................................................................................................ 16-1-2
16.1.4 Periodic Function Test for Safety Function (STO) ............................................................. 16-1-2
16.2 Daily Inspection and Periodic Inspection ................................................................................. 16-2-1
16.2.1 Inverter Inspection List .......................................................................................................... 16-2-1
16.2.2 Megger® Test ......................................................................................................................... 16-2-3
16.2.3 Withstand Voltage Test ......................................................................................................... 16-2-3
16.2.4 Checking the Inverter and Converter Section ................................................................... 16-2-4
16.2.5 Smoothing Capacitor Life Curve .......................................................................................... 16-2-5
16.2.6 Life Warning Output ............................................................................................................... 16-2-5
16.2.7 Measurement Methods of I/O Voltage, Current, and Power ........................................... 16-2-6
Chapter 17 Specifications/Dimensions/Derating
17.1 Standard Specifications .............................................................................................................. 17-1-1
17.1.1 Single-phase 200 V Class ..................................................................................................... 17-1-1
17.1.2 Three-phase 200 V Class ...................................................................................................... 17-1-2
17.1.3 Three-phase 400 V Class ...................................................................................................... 17-1-3
17.1.4 Common Specifications ........................................................................................................ 17-1-4
17.2 External Dimensions ................................................................................................................... 17-2-1
17.3 Current Derating ......................................................................................................................... 17-3-1

Hitachi WJ C1 Series Specifications

General

Brand	Hitachi
Model	WJ C1 Series
Category	Inverter
Language	English