Mitsubishi FREQROL-SFJ, Руководство по обслуживанию

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(13) Speed can be controlled normally, but spindle cannot be
stopped in position (oriented sindle stop) . . . . .
Cause
Checkup Remedy
Speed can be Check if position feedback
Replace the
creased to
encoder or magnesensor
tion detector
spindle
is in good condition.
replace card SF-CR;
stop" speed, but
Run the motor under speed
DAJ or TLJ.
motor does not
control to check position
stop.
feedback signal.
Check the signals on the
i
'following check pins of
cards SF-ORJ, DAJ and
while the motor is running
forward.
(DG)
(Mark pulse)
Check on the following pins
of card SF-ORJ, and TLJ
while the motor is running
forward.
(DG)
or
Oriented spindle
Backlash in encoder is
Reduce the back-
stop position in
large.
lash.
forward rotation
deviates from
oriented stop po-
sition in reverse
rotation (during
multipoint ori-
ented spindle
stop).