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Display
Descriptions of fault
Corrective measures
AC motor drive stops output when
external multifunction terminals EF
and DCM (Sink mode) closed.
Depress RESET key after fault eliminated.
Inner memory IC data writing fault
1. Supply power again after power off.
2. Factory maintenance and overhaul
Inner memory IC data reading fault
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 AC motor driver
internal DC voltage side at power-on
test
1. check the input voltage, whether it is within
the rated input voltage of AC motor driver
2. if the input voltage is normal, send to factory
for service
Under voltage of AC motor driver
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
AC motor drive stops output when
external multifunction terminals (MI1,
MI2, and MI3) and DCM (Sink mode)
closed.
B.b shall disappear immediately after signal
source eliminated.
Communication fault
1. Check the connection condition of
communication circuit
2. Check the communication format
Signal fault of module upper and lower
bridge control
1. whether there is serious interference
sources around
2. Factory service
Wobble frequency setting fault, 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
