Chapter 7 Faults and solutions
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Chapter 7 Faults and Solutions
7-1 Fault alarm and Solutions
When the inverter fails during operation, the inverter will immediately protect the motor
from output, and the inverter fault relay contact will act and display the fault code on the
inverter display panel. Before seeking service, users can perform self-checking according to
the tips in this section to analyze the cause of the fault. If the fault cannot be solved, please
seek technical support from our company or product agent.
Fault name
display
Troubleshoot the cause
solutions
Inverter unit
protection
Err01
1, the inverter output circuit is
short circuit
2. The motor and inverter are
too long.
3, the module is overheated
4, the internal wiring of the
inverter is loose
5. The main control board or
driver board is abnormal.
6, the inverter module is
abnormal
1, eliminate peripheral faults
2, install reactor or output filter
3. Check if the air duct is blocked
and the fan is normal.
4, plug in all the cables
5, seeking technical support
6, seeking technical support
Accelerating
overcurrent
Err02
1. There is grounding or short
circuit in the output circuit of the
inverter.
2. The control mode is vector
and there is no parameter
identification.
3, the acceleration time is too
short
4. Manual torque boost or V/F
curve is not suitable
5, the voltage is low
6. Start the motor that is rotating
7. Sudden load during
1, eliminate peripheral faults
2. Perform motor parameter
identification
3, increase the acceleration time
4, adjust the manual lift or V / F
curve
5, adjust the voltage to the normal
range
6, select the speed tracking start
or wait for the motor to stop and
then start
7, cancel the sudden load
8, select the inverter with a larger