Rockwell Automation MPAI Heavy Duty Electric Cylinders - Manual (Page 52)

52 MP-Series Heavy Duty Electric Cylinders
Rockwell Automation Publication MPAI-IN001E-EN-P - March 2012
Electric cylinder is operating but is not
up to rated speeds/forces.
Motor phases are wired incorrectly
or in incorrect order.
Verify correct motor power wiring.
Amplifier may be improperly tuned. Verify gain settings.
Amplifier may be set up improperly
for electric cylinder used.
Verify amplifier setting for number of poles,
voltage, current, resistance, inductance,
inertia, and other motor settings.
Electric cylinder cannot move load. Force is too large for the capacity of
the electric cylinder or too much
friction is present.
Verify force requirements.
Misalignment of thrust rod to load. Verify load alignment.
Amplifier has too low of current
capacity or is limited to too low of
current capacity.
Verify correct amplifier and settings.
Electric cylinder moves or vibrates
when thrust rod is in motion.
Loose mounting. Verify actuator mounting.
Amplifier is improperly tuned or
gain setting is wrong.
Tune amplifier.
Actuator is overheating. Duty cycle is higher than actuator
rating.
Verify load forces and electric cylinder rating.
Actuator operated outside of
continuous rating.
Adjust operation to be within continuous
operation rating.
Amplifier is poorly tuned, requiring
excessive current be applied to the
motor.
Verify gain settings.
Troubleshooting Electric Cylinders (cont.)
Description Possible cause Corrective action