GE AF-300 P11 User Manual page 108

(3) If the motor stalls during acceleration
The motor stalls during
acceleration.
Use a thicker cable between
the drive and the motor or
shorten the cable length.
Reduce the torque of the
load or increase the drive
capacity.
The motor generates
abnormal heat.
Data subject to change without notice 7/07. © 2007 GE Drives
Is the acceleration time
too short?
NO
Is the inertia moment of the
motor or the load excessive?
NO
YES
Has the motor terminal
voltage dropped?
NO
YES
Is the torque of the load
excessive?
NO
Is the torque boost
set correctly?
NO
Increase the torque boost.
Is the torque boost
excessive?
NO
Has the motor been
operating continuously at a
very low speed?
NO
Is the load excessive?
NO
Is the drive output voltage.
Terminals (U, V, W)
balanced?
NO
Faulty drive or error
due to noise, etc.
Contact GE Drive.
YES
Prolong the time.
YES
Is a special motor used?
NO
Reduce the inertia moment
of the load or increase the
drive capacity.
Faulty drive or error due
YES
to noise, etc.
Contact GE Drive.
YES
Reduce the torque boost.
YES
Use a motor exclusive
to the drive.
YES
Reduce the load or increase
motor capacity.
YES
Faulty motor.
Note: Motor overheating following a
higher frequency setting is likely the
result of the current wave form.
Contact GE Drives.
7-7
YES
Contact GE Drive.