Fault Codes And Troubleshooting - Monarch NICE3000 User Manual

Brief NICE3000 Instruction Manual
7.2 Fault Information and Troubleshooting
If an alarm is reported, the system performs corresponding processing based on the fault
level. You can handle the fault according to the possible causes described in the following
table.
Table 7-2 Fault codes and troubleshooting
Fault
Name
Code
Invert unit
E01
protection
Over-current
E02 during
acceleration
Over-current
E03 during
deceleration
Possible Causes
1. The main circuit
output is grounded or
short circuited.
1. Eliminate external faults.
2. The connecting
2. Install a reactor or an output
cable of the motor is
filter.
too long.
3. Check the air channel and
3. The working
the cooling fan.
temperature is too
4. Contact the agent or
high.
Monarch.
4. The internal
connections become
loose.
1. The main circuit 1. Check whether the RUN
output is grounded or contactor at the controller
short circuited. output side is normal.
2. Motor auto- 2. Check whether the power
tuning is performed cable jacket is damaged,
improperly. whether the power cable is
3. The load is too possibly short circuited to
heavy. ground and whether the cable
4. The encoder signal is connected reliably.
is incorrect. 3. Check the insulation of motor
5. The UPS running power terminals, and check
feedback signal is whether the motor winding is
abnormal. short-circuited or grounded.
4. Check whether the shorting
1. The main circuit
PMSM stator contactor causes
output is grounded or
controller output short circuit.
short circuited.
5. Check whether motor
2. Motor auto-
parameters comply with the
tuning is performed
nameplate.
improperly.
6. Perform motor auto-tuning
3. The load is too
again.
heavy.
7. Check whether the brake
4. The deceleration
keeps released before the fault
rate is too short.
occurs and whether the brake is
5. The encoder is
stuck mechanically.
seriously interfered
(To be continued)
with.
- 83 -
Troubleshooting
Solution Level
5
5
5