Chapter 8 Troubleshooting and Countermeasures
8.1
Fault Alarm and Countermeasures
Inverters of our company has 22 pieces of warning information and protection function. In case of abnormal fault, the
protection function will be invoked , the inverter will stop output , and the faulty relay contact of the inverter will start , the
fault code will be displayed on the display panel of the inverter . Before consulting the service department , the user can perform
self-check according to the prompts of this chapter , analyze the reason and find out the solution . If the fault is caused by
the reasons described in the dotted frame , please consult the agent or our company directly .
Inverter Unit Protection
E.1
Check if the output loop of the
inverter is grounding or short circuited
Check if there is contactor or
other switch parts between inverter
and motor
Whether the cable connecting
the motor with the inverter is too
long
No
No
No
No
No
No
No
Whether the module is over heat
Check if the cable connections
inside the inverter are loosen
If it works normally after replacing
the main control board
If it works normally after replacing
the drive board
If it works normally after replacing
the inverter module
Perform
troubleshooting
Remove
the parts
Insert all the connecting
cables properly
The main control
board is faulty
The drive board
is faulty
The inverter
module is damaged
Install a reactor
or output filter
Check if the air duct is
blocked and if the fan is in
normal status , and resolve
the existing problems .
Yes
Yes
Yes
Ask for technical support
Yes
Yes
Yes
Yes
Yes
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Chapter 8 Troubleshooting and Countermeasures
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