GE Industrial Solutions AF-300E$ - Manual (Page 104)

8-9
If the function of the drive is lost by a failure or if an abnormal phenomenon has occurred, refer to the following diagnosis
for its probable cause. If the cause does not fall under the following explanation, or if the drive is damaged, please contact
your distributor.
1 Diagnosis and remedy in case protective function activation.
Troubleshooting
No No
O C 2 O C 3
Is motor circuit (U, V, W) of motor shorted or grounded?
Is the load too large?
Repair
short-circuit
and/or
grounding
sections.
Is the
deceleration
time setting
too short for
the load?
Does the load
change
suddenly?
Can the
deceleration
time be
increased?
Prolong the
setting time.
There is the
possibility of
failure in the
drive or a
noise problem.
Please contact
GE Fuji
Yes
Review the
system
application
method.
Please
contact GE Fuji
There is a
possibility of
drive failure
or a motor
noise problem.
Please contact
GE Fuji
Increase the
set time.
No
No
Is the
acceleration
time setting too
short for the
load?
Can the
acceleration
time be
increased?
Yes
Reduce the
load or
increase the
drive
capacity.
No
Yes
No
Yes
Can the torque
boost setting
be reduced?
No No
Reduce the
torque boost
setting
No
E F
No
There is the possibility of failure in
the drive or a noise problem.
Please contact GE Fuji
Is drive output
grounded?
Yes
Repair short-circuit
and/or grounding sections.
( 2 ) Ground Fault
Reduce load
or increase
drive
capacity.
Yes
No
Yes
Yes
O C 1
Is the torque
boost setting
correct?
Reduce the
load
fluctuation
or increase
the Drive's
capacity rating.
No
No
Yes
Yes
No
( 1 ) Overcurrent
Overcurrent
during
acceleration
Overcurrent
during
deceleration
Overcurrent
steady state
running