22 Operation and Maintenance Manual
MQ-150 Ballscrew Feed Unit
Troubleshooting
Symptom
Possible causes
Solution
Following error
Mechanical binding, Broken or
dull tool causing stalling. Unit
undersized.
Correct binding, Correct or replace
tooling.
During homing sequence
machine passes home
switch
Bad proximity switch or
proximity switch not set to
correct depth.
Verify that switch is working
properly. Verify switch is at
proper depth- See mechanical
section.
Servo E-stop hit
E-stop circuit has been broken. Verify e-stop buttons / input 7 on
motion controller.
c>memory corrupt use new
Battery backup in motion
controller has failed.
Send motion controller back to
Baldor for inspection if under
warranty . Purchase new battery
and install.
External error
Spindle and or feed drive has
faulted.
Verify fault display on drives, use
corresponding manuals for
troubleshooting problem.
Rear or Forward over travel
which will not return to
home.
Quill is bound up. Rear or
Forward over ravel switch is
faulty. Current program may
have improper values.
Remove belt covers, belts, pulleys
and manually turn shaft until quill
becomes free. Verify that over
travel switches are working
properly.
