Filter
Top Products
IV
5 PROTECTIVE FUNCTIONS 127
5.1 Errors (Alarms)........................................................................................................127
5.1.1 Operation at alarm occurrence.........................................................................127
5.1.2 Error (alarm) definitions....................................................................................128
5.1.3 To know the operating status at the occurrence of alarm.................................134
5.1.4 Correspondence between digital and actual characters...................................134
5.1.5 Resetting the inverter .......................................................................................134
5.2 Troubleshooting ......................................................................................................135
5.2.1 Motor remains stopped.....................................................................................135
5.2.2 Motor rotates in opposite direction ...................................................................135
5.2.3 Speed greatly differs from the setting...............................................................136
5.2.4 Acceleration/deceleration is not smooth...........................................................136
5.2.5 Motor current is large........................................................................................136
5.2.6 Speed does not increase..................................................................................136
5.2.7 Speed varies during operation..........................................................................136
5.2.8 The operation mode does not change to the DeviceNet operation mode ........137
5.2.9 The inverter does not start even after entering the DeviceNet operation mode.....137
5.2.10 Parameter write cannot be performed............................................................137
5.2.11 How to check for errors using the operation status indicator LED .........................138
5.2.12 Inspecting display on parameter unit and status LED ....................................139
5.3 Precautions for Maintenance and Inspection..........................................................140
5.3.1 Precautions for maintenance and inspection ...................................................140
5.3.2 Check items......................................................................................................140
5.3.3 Periodic inspection ...........................................................................................140
5.3.4 Insulation resistance test using megger ...........................................................141
5.3.5 Pressure test ....................................................................................................141
5.3.6 Daily and periodic inspection............................................................................142
5.3.7 Replacement of parts .......................................................................................145
5.3.8 Measurement of main circuit voltages, currents and powers............................147
6 SPECIFICATIONS 149
6.1 Standard Specifications ..........................................................................................149
6.1.1 Model specifications.........................................................................................149
6.1.2 Common specifications ....................................................................................150