Rockwell Automation MPAI Heavy Duty Electric Cylinders - Manual (Page 51)

MP-Series Heavy Duty Electric Cylinders 51
Rockwell Automation Publication MPAI-IN001E-EN-P - March 2012
Troubleshooting
Troubleshooting Electric Cylinders
Description Possible cause Corrective action
Axial play too large. Wear
•
Replace actuator cylinder.
•
Send to Rockwell Automation for repair.
Squeaking noises or vibrations. Distortions
•
Verify the electric cylinder is free of stress
and evenly supported  0.2 mm
(0.008 in.).
•
Lubricate thrust rod. See Configure Your
Kinetix 300 Servo Drive with MotionView
OnBoard on
page 42 .
•
Modify positioning speed.
Tuning is necessary. Modify control parameters.
Running noises at the spindle
support of an electric cylinder with a
300 mm (11.81 in.) stroke and high
positioning speeds.
Normal, no impairment of function.
Thrust 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 enabled. Enable controller/drive.
Controller/drive faulted. Reset the controller/drive.
Improper/failed wiring. Check the wiring.
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.