Instruction manual

9. TROUBLESHOOTING
(speed fluctuations)
are large at low
speed
Large load inertia
moment causes the
servo motor shaft to
oscillate side to side.
2yclic operation Position shift occurs
Investigation
following procedure:
Gain adjustment fault Make gain adjustment In the
Possible Cause
1. Increase the auto tunlng
response level.
2. Repeat acceleration and
deceleration several
times to complete auto
tunlng.
Make gain adjustment in the
following procedure:
Gam adjustment fault
If the servo motor may be
run with safety, repeat
acceleration and
deceleration several times
to complete auto tuning.
Confirm the cumulative
servo motor position.
feedback pulses and actual
due to noise.
command pulses, cumulative
Pulse countlng error, etc.
9- 2
Refer To
Chapter i
Chapter i
2) in this
section