IMO iDrive EDX 100V series 1-ph/0.2 – 0.75kW (0.25 – 1HP) Owner's Manual page 81

Troubleshooting for OV, LV error display
The iDrive displays
OV. LV
Are the main
circuit fuses
OK?
No
Apply power
Abnormal error
code
No
Input operation commands
Input frequency commands
Is the output frequency
of the operating unit
displayed?
YES
Are there outputs on
output terminals T1, T2,
and T3?
YES
motor running
Any abnormal
output value?
NO
Are currents of
all phases
even?
YES
The iDrive is OK
Yes
Replace the main circuit board
YES
Replace the control board
NO
Replace the control board
NO
Replace the control board
YES
NO
5-10
Chapter 5 Trouble shooting and maintenance
Is the inverter
working ok after
replacement?
YES
‧
The inverter is faulty.
The inverter faults
Contact your iDrive supplier.
Perform detailed checks
NO