Rockwell Automation MPAR Electric Cylinders - Manual (Page 36)

36 MP-Series Electric Cylinders
Rockwell Automation Publication MPAR-IN001D-EN-P - September 2012
Troubleshooting
This table describes some possible anomalies and steps you can take to correct them.
Troubleshooting
Description Possible Cause Corrective Action
Axial play too large. Wear.
Replace actuator cylinder.
Send to Rockwell Automation for repair.
Squeaking noises or vibrations.
Distortions.
Check the electric cylinder is free of stress and
evenly supported

0.2 mm (0.008 in.).
Lubricate piston rod. See Maintenance on
page 35.
Modify positioning speed.
Needs tuning. Modify control parameters.
Running noises of the spindle
support (with strokes 300 mm
(11.81 in.) and high positioning
speeds).
Normal, no impairment of function.
Piston rod does not move.
Jamming in mechanical end
position, after traveling at excessive
speed or into end position.
Loosen jamming manually.
1. Switch off power supply.
2. Remove motor and coupling housing.
3. Turn drive shaft.
Reduce speed for reference travel.
Provide software end positions, at least
0.25 mm (0.01 in.) from the mechanical end
positions (stops).
Load is too large.
Reduce load mass.
Reduce positioning speed.
Return for repairs.
Ambient temperature too low
(increased breakaway torque in
initial run due to increasing viscosity
of the lubricants in the spindle
system).
Reduce load mass.
Reduce positioning speed.
If necessary, allow higher current with servo
motors (see operating instructions for the
motor).
Increase ambient temperature.
No response from electric cylinder.
Controller/drive not enable. Enable controller/drive.
Controller/drive faulted. Reset the controller/drive.
Improper/failed wiring. Check the wiring.