Inovance Monarch NICE-L-C-4037F

7 Troubleshooting
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268
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Fault
Code
Name Possible Causes Solution Level
Err03
Overcurrent
during
deceleration
The main circuit output is
grounded or short circuited.
◆
Check whether the motor and grounding
cables are connected correctly.
◆
Check whether the shorting PMSM stator
contactor causes short circuit at the control-
ler output side.
◆
Check whether the motor cables have dam-
aged jacket.
5A
Motor auto-tuning is
performed improperly.
◆
Check whether motor parameters comply
with the nameplate. Perform motor au-
to-tuning again.
The encoder signal is
incorrect.
◆
Check whether encoder pulses per revolu-
tion (PPR) is set correctly.
◆
Check whether the encoder signal is inter-
fered with, whether the encoder cable runs
through the duct independently, whether
the cable is too long, and whether the shield
is grounded at one end.
◆
Check whether the encoder is installed reli-
ably, whether the rotating shaft is connect-
ed to the motor shaft reliably by observing
whether the encoder is stable during nor-
mal-speed running.
◆
Check whether the encoder wirings are
correct. For the asynchronous motor, per-
form SVC and compare the current to judge
whether the encoder works properly.
The deceleration rate is too
short.
◆
Reduce the deceleration rate.
Err04
Overcurrent at
constant speed
The main circuit output is
grounded or short circuited.
◆
Check whether the motor and grounding
cables are connected correctly.
◆
Check whether the shorting PMSM stator
contactor causes short circuit at the control-
ler output side.
◆
Check whether the motor cables have dam-
aged jacket.
5A
Motor auto-tuning is
performed improperly.
◆
Check whether motor parameters comply
with the nameplate. Perform motor au-
to-tuning again.
The encoder signal is
incorrect.
◆
Check whether encoder pulses per revolu-
tion (PPR) is set correctly.
◆
Check whether the encoder signal is inter-
fered with, whether the encoder cable runs
through the duct independently, whether
the cable is too long, and whether the shield
is grounded at one end.
◆
Check whether the encoder is installed reli-
ably, whether the rotating shaft is connect-
ed to the motor shaft reliably by observing
whether the encoder is stable during nor-
mal-speed running.
◆
Check whether the encoder wirings are
correct. For the asynchronous motor, per-
form SVC and compare the current to judge
whether the encoder works properly.