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Display
Descriptions of fault
Corrective measures
Motor load overlarge
1. Check motor load is not overlarge.
2. Check over-torque detection level setting (06-03).
Inverter stops output when external
multifunction terminals (EF) and
DCM (NPN mode) closed.
Depress RESET key after alarm eliminated.
Inner memory IC data writing alarm
1. Supply power again after power off.
2. Factory maintenance and overhaul
Inner memory IC data reading
alarm
1. Depress RESET key and reset parameter to factory setting.
2. If unavailable, search for factory maintenance and overhaul.
Internal temperature is over high at
power-on test
1. Check the environment temperature, whether it is too high.
2. If the environment temperature is normal, send to factory for
service.
Over voltage of inverter internal DC
voltage side at power-on test
1. Check the input voltage, whether it is within the rated input
voltage of inverter.
2. If the input voltage is normal, send to factory for service.
Under voltage of inverter internal
DC voltage side at power-on test
1. Check whether the input power supply voltage is normal.
2. If the input voltage is normal, send to factory for service.
Circuit fault of over voltage
protection
Factory service
Circuit fault of over current
protection
Factory service
Inverter stops output when external
multifunction terminals and DCM
(NPN mode) closed.
“bb” shall disappear immediately after signal source eliminated.
Communication fault
1. Check the connection condition of communication circuit.
2. Check the communication format.
Wobble frequency setting alarm,
the central frequency of wobble
frequency is lower than width, or the
max. value of wobble frequency
exceeds the upper and lower limit of
frequency.
1. Reset the correct wobble frequency parameter.
