Chapter 8 Troubleshooting and Countermeasures
-85-
Phase loss at the output side
Check if the cable connecting the
inverter to the motor is normal
Perform troubleshooting
Check if the three-phase output of the
running inverter without motor is balanced
Check if the three-phase
winding of the motor is normal
and remove the fault
Check if the drive board is normal
Replace the drive board
Check if the module is normal
Replace the module
Ask for technical support
No
No
No
Yes
Yes
Yes
Yes
Fig.8-12 Phase Loss at Output Side˄ERR13˅
Module over heat
If the ambient temperature is too high
Reduce the ambient
temperature
If the air duct is blocked
Clean the air duct
If the fan is broken
Replace the fan
If the thermal resistor of the module is broken
Replace the thermal resistor
If the inverter module is broken
Replace the inverter module
Ask for technical support
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Fig.8-13 Module over heat˄ERR14˅
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