III
4.2 List of fault or alarm indications ..........................................................................97
4.3 Causes and corrective actions ............................................................................ 98
4.4 Correspondences between digital and actual characters ............................... 107
4.5 Check and clear of the faults history ................................................................ 108
4.6 Check first when you have a trouble ................................................................. 110
4.6.1 Motor does not start................................................................................................................... 110
4.6.2 Motor or machine is making abnormal acoustic noise............................................................... 112
4.6.3 Inverter generates abnormal noise ............................................................................................ 113
4.6.4 Motor generates heat abnormally .............................................................................................. 113
4.6.5 Motor rotates in the opposite direction....................................................................................... 113
4.6.6 Speed greatly differs from the setting........................................................................................ 113
4.6.7 Acceleration/deceleration is not smooth .................................................................................... 114
4.6.8 Speed varies during operation................................................................................................... 114
4.6.9 Operation mode is not changed properly................................................................................... 115
4.6.10 Operation panel display is not operating ................................................................................... 115
4.6.11 Motor current is too large........................................................................................................... 115
4.6.12 Speed does not accelerate........................................................................................................ 116
4.6.13 Unable to write parameter setting.............................................................................................. 116
5 PRECAUTIONS FOR MAINTENANCE AND INSPECTION 117
5.1 Inspection items .................................................................................................. 117
5.1.1 Daily inspection.......................................................................................................................... 117
5.1.2 Periodic inspection..................................................................................................................... 117
5.1.3 Daily and periodic inspection..................................................................................................... 118
5.1.4 Display of the life of the inverter parts ....................................................................................... 119
5.1.5 Cleaning..................................................................................................................................... 121
5.1.6 Replacement of parts................................................................................................................. 121
6 SPECIFICATIONS 125
6.1 Rating ................................................................................................................... 125
6.2 Common specifications ...................................................................................... 127
6.3 Outline dimension drawings .............................................................................. 128
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