40
Troubleshoooting
| 40 | Version 1.0
Condition Reason Action Cause Correction
No operation
Coil burning
(above 2 phase)
Measure phase resistance
value; change motor if
value is innite.
Excessive current caused
by high or low voltage
Operate under rated voltage
Excessive current caused
by overload
Operate under rated voltage
Beyond short-term
rating and
intermittent cycle rating
Short-term rating, intermittent
cycle rating, operate
under rated voltage
Avoid over-operation
Excessive current caused
by brake
Refer to brake
Lead wire break
(above 2phase)
Measure phase resistance
value; change motor if value
is innite.
Lead wire broken in
assembly
Change motor coil
Vibration, drop
Avoid excessive bumping in
usage
Operation only in free load
(single phase state)
Coil burning
(1 phase only)
Measure phase resistance
value; change motor if value
is innite
Poor electric isolation
Ensure foreign matter does
not enter motor
Leading wire break (1
phase only)
Measure phase resistance
value; change motor if value
is innite
Leading wire break in
assembly
Change motor coil
Vibration, drop Avoid excessive bumping
Motor