Inovance MD320 Series, User Manual

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Fault Diagnosis and Solution MD320/MD320N User Manual
Data Overflow
If it is normal after replacing the
main control board
Main control board fault
Ask for technical support
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Yes
Yes
No
Inverter hardware fault
If it is over voltage
Remove over voltage fault
If it is over current
Remove over current fault
Fig.8-21 Inverter hardware fault(ERR22)
Fault of Short Circuit to Earth
Detect if the motor is short circuited to earth
Replace the cable or motor
Replace the drive board
Yes
Fig.8-22 Earth short circuit fault(ERR23)
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