Rockwell Automation MPAR Electric Cylinders - Manual (Page 37)

MP-Series Electric Cylinders 37
Rockwell Automation Publication MPAR-IN001D-EN-P - September 2012
Electric cylinder is enabled but not
operating or is operating erratically.
Feedback cable may be damaged. Test the feedback cable.
Feedback wiring may be incorrect. Verify correct feedback wiring.
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. Check gain settings.
Amplifier may be set up improperly
for electric cylinder used.
Check amplifier setting for number of poles,
voltage, current, resistance, inductance,
inertia, and other motor settings.
Actuator 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 piston rod to load. Verify load alignment.
Amplifier has too low of a current
capacity or is limited to too low of a
current capacity.
Verify correct amplifier and settings.
Electric cylinder moves or vibrates
when piston rod is in motion.
Loose mounting. Check actuator mounting.
Amplifier is improperly tuned-
wrong gain setting.
Tune amplifier.
Actuator is overheating.
Duty cycle is higher than actuator
rating.
Verify load forces and electric cylinder rating.
Actuator is being operated outside
of continuous rating. Adjust operation to be within continuous
operation rating.
Amplifier is poorly tuned, causing
excessive current to be applied to
motor.
Check gain settings.
Troubleshooting (continued)
Description Possible Cause Corrective Action