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Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 23/03/2011
41
When inverter di
s
play
malfunction indication
OC.OL.
S
witch ON power
s
upply
I
s
the output fre
q
uency
di
s
played?
Detail examination i
s
re
q
uired.
Inverter i
s
out of order.
YE
S
I
s
the appearance
normal?
I
s
the primary
circuit I.
G
.B.T.
normal?
Input operation
in
s
truction
Replace I.
G
.B.T.
I
s
the current
detector normal?
NO
YE
S
NO
ABNORMAL
I
s
there any
malfunction indication
Input fre
q
uency
s
etting
I
s
there output
voltage on UVW
terminal
s
?
Connect motor and
proceed with operation.
I
s
there any malfunction
indication
I
s
output
current of all pha
s
e
s
in
balance condition.
The inverter i
s
normal now.
Replace defective PCB
Replace control board.
Replace detector.
Replace control board
Replace control board
I
s
replacing
control board correct thi
s
Problem?
NORMAL
YE
S
ABNORMAL
NORMAL
NO
YE
S
YE
S
NO
NO
YE
S
YE
S
NO
YE
S
6.2 Error handling of malfunction indication of OC.OL
RVDF Advanced User Manual