Mitsubishi Electric FR-E520 Instruction Manual page 10

5.1.4 Resetting the inverter .................................................................................... 195
5.2 Troubleshooting ................................................................................................. 196
5.2.1 Motor remains stopped.................................................................................. 196
5.2.2 Motor rotates in opposite direction ................................................................ 196
5.2.3 Speed greatly differs from the setting............................................................ 197
5.2.4 Acceleration/deceleration is not smooth........................................................ 197
5.2.5 Motor current is large..................................................................................... 197
5.2.6 Speed does not increase............................................................................... 197
5.2.7 Speed varies during operation....................................................................... 197
5.2.8 Operation mode is not changed properly ...................................................... 198
5.2.9 Operation panel display is not operating ....................................................... 198
5.2.10 POWER lamp is not lit ................................................................................... 198
5.2.11 Parameter write cannot be performed ........................................................... 198
CHAPTER 6 MAINTENANCE/INSPECTION
6.1 Precautions for Maintenance and Inspection.................................................. 200
6.1.1 Precautions for maintenance and inspection................................................. 200
6.1.2 Check items................................................................................................... 200
6.1.3 Periodic inspection ........................................................................................ 200
6.1.4 Insulation resistance test using megger ........................................................ 201
6.1.5 Pressure test ................................................................................................. 201
6.1.6 Daily and periodic inspection......................................................................... 202
6.1.7 Replacement of parts .................................................................................... 205
6.1.8 Measurement of main circuit voltages, currents and powers ........................ 210
CHAPTER 7 SPECIFICATIONS
7.1 Standard Specifications .................................................................................... 214
7.1.1 Model specifications ...................................................................................... 214
7.1.2 Common specifications ................................................................................. 218
7.1.3 Outline drawings............................................................................................ 220
APPENDIX
APPENDIX 1 Instruction Code List .......................................................................... 228
APPENDIX 2 When using the communication option. (400V class only)............. 232
IV
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