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Phenomenon
Motor vibration too
great.
Motor too hot.
Possible cause
The centers of the motor's
output shaft and load shaft are
not aligned.
Motor resonating
Load too small.
Long continuous operation
time of the motor.
The all windings off input is
set to ON.
Motor standstill current
adjustment too high.
9 Troubleshooting and remedial actions
Remedial action
Check the connection
condition of the motor output
shaft and load shaft.
If the vibration decreases
when the operating pulse
speed is changed, it means
the motor is resonating.
Change the operating pulse
speed setting or install a clean
damper (sold separately) to
suppress vibration.
Turn the motor operating
current setting switch slightly
in the counterclockwise
direction in order to lower the
current. Vibration will increase
if the motor's output torque is
too large for the load.
Decrease the operation time
of the motor per session or
increase the standstill time.
Make sure that the motor case
temperature will not exceed
100 °C (212 °F).
Switch all windings off input to
OFF.
Lower the motor standstill
current.
−47−
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