IMO iDrive - Page 79

Chapter 5 Trouble shooting and maintenance
5-10
Troubleshooting for OV, LV error display
The iDrive displays
OV. LV
A
re t
h
e ma
i
n
circuit fuses
OK?
Apply power
Abnormal error
code
Input operation commands
Input frequency commands
I
s t
h
e output
f
requency
of the operating unit
displayed?
Are there outputs on
output terminals T1, T2,
and T3?
motor running
Any abnormal
output value?
Are currents of
all phases
even?
The iDrive is OK
Replace the main circuit board
Replace the control board
Replace the control board
Replace the control board
Is the inverter
working ok after
replacement?
Perform detailed checks
The inverter faults
YES
YES
YES
YES
N
O
N
O
N
O
N
O
N
O
YES
‧
YES
Yes
N
o
N
o
The inverter is faulty.
Contact your iDrive supplier.