Mitsubishi Electronics MR-J2-03A5 User Manual
9 - 2
9. TROUBLESHOOTING
No.
Start-Up Sequence
Fault
Investigation
Possible Cause
Refer To
Rotation ripples
(speed fluctuations)
are large at low
speed.
(speed fluctuations)
are large at low
speed.
Make gain adjustment in the
following procedure:
1. Increase the auto tuning
following procedure:
1. Increase the auto tuning
response level.
2. Repeat acceleration and
deceleration several
times to complete auto
tuning.
times to complete auto
tuning.
Gain adjustment fault
Chapter 7
4
Gain adjustment
Large load inertia
moment causes the
servo motor shaft to
oscillate side to side.
moment causes the
servo motor shaft to
oscillate side to side.
Make gain adjustment in the
following procedure:
If the servo motor may be
following procedure:
If the servo motor may be
run with safety, repeat
acceleration and
deceleration several times
to complete auto tuning.
acceleration and
deceleration several times
to complete auto tuning.
Gain adjustment fault
Chapter 7
5
Cyclic operation
Position shift occurs Confirm the cumulative
command pulses, cumulative
feedback pulses and actual
servo motor position.
feedback pulses and actual
servo motor position.
Pulse counting error, etc.
due to noise.
due to noise.
(2) in this
section
section