Mitsubishi Electric FR-A720-0.4K Instruction Manual page 6

4.6.3 Inverter generates abnormal noise........................................................................................ 158
4.6.4 Motor generates heat abnormally .......................................................................................... 158
4.6.5 Motor rotates in the opposite direction .................................................................................. 159
4.6.6 Speed greatly differs from the setting.................................................................................... 159
4.6.7 Acceleration/deceleration is not smooth................................................................................ 159
4.6.8 Speed varies during operation............................................................................................... 160
4.6.9 Operation mode is not changed properly .............................................................................. 161
4.6.10 Operation panel (FR-DU07) display is not operating............................................................. 161
4.6.11 Motor current is too large....................................................................................................... 161
4.6.12 Speed does not accelerate .................................................................................................... 162
4.6.13 Unable to write parameter setting.......................................................................................... 162
4.6.14 Power lamp is not lit .............................................................................................................. 162
5 PRECAUTIONS FOR MAINTENANCE AND INSPECTION
5.1 Inspection item................................................................................................... 163
5.1.1 Daily inspection ..................................................................................................................... 163
5.1.2 Periodic inspection ................................................................................................................ 163
5.1.3 Daily and periodic inspection ................................................................................................. 164
5.1.4 Display of the life of the inverter parts ................................................................................... 165
5.1.5 Cleaning ................................................................................................................................ 166
5.1.6 Replacement of parts ............................................................................................................ 167
5.1.7 Inverter replacement.............................................................................................................. 170
6 SPECIFICATIONS
6.1 Inverter rating..................................................................................................... 171
6.2 Motor rating........................................................................................................ 173
6.3 Common specifications...................................................................................... 175
6.4 Outline dimension drawings............................................................................... 176
6.4.1 Inverter outline dimension drawings ...................................................................................... 176
6.4.2 Dedicated motor outline dimension drawings ........................................................................ 183
6.5 Installation of the heatsink portion outside the enclosure for use ...................... 188
6.5.1 When using a heatsink protrusion attachment (FR-A7CN) ................................................... 188
6.5.2 Protrusion of heatsink of the FR-A740-160K or higher.......................................................... 188
APPENDICES
Appendix 1 For customers who are replacing the older model with
this inverter ............................................................................................. 191
Appendix 1-1 Replacement of the FR-A500 series .......................................................................... 191
Appendix 1-2 Replacement of the FR-A200 <EXCELENT> series .................................................. 192
Appendix 2 SERIAL number check ........................................................................... 192
Appendix 3 Instructions for UL and cUL compliance ................................................. 193
Appendix 4 Instructions for compliance with the EU Directives ................................. 196
Appendix 5 Compliance with the Radio Waves Act (South Korea) .......................... 197
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