Motor Will Stall During Acceleration; Motor Heating Abnormal - GE Fuji Electric AF-300ES Instructions Manual

( 13 ) Motor will stall during acceleration.

The motor will stall
during acceleration.
Is the acceleration
time setting short?
Is Wk 2 of the motor
and/or load
excessive?
Is the motor terminal
voltage lower than
output terminal
voltage?
Is the load torque
high?
Reduce the load
torque, or increase
the capacity of the
drive.

( 14 ) Motor heating abnormal.

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Yes
Increase the set
time.
No
Yes
No
Make the wire size
between the drive
Yes
and the motor larger
or shorten the wiring
distance.
No
No
Is the torque boost
set correctly?
Yes
There is the possibility
of drive failure or a
noise related problem.
Contact GE Fuji
Abnormal motor
heating.
Is the V/Hz
No
characteristics
suitable for the
motor?
Yes
Is the motor
Yes
continuously
operated at very
low speed?
No
Yes
Is the load too large?
No
Is the output
Yes
voltage (Terminals
U, V, and W) of the
drive well bal-
anced?
No
There is the
possibility of failure
in the drive. Con-
tact GE Fuji
Yes
Contact GE Fuji
Is a special
motor in use?
No
Reduce the load Wk
increase the drive capacity.
No
Yes
Change the setting.
Use a motor designed
exclusively for drive
use and low speed
operation.
Reduce the load or
increase motor
capacity.
Failure in motor
possible.
8-17
2
or
Increase or de-
crease the torque
boost setting.