4.2.13 ALARMS351 AND352 (Motor Overload)
Trouble
Cutting condition is
too severe (Servopack
alarm lights and alarm
390 activates.
Ma(chineruns heavily
due to shortage of
lubricant on the guide
face of machine.
———
Disconnection or con-
tact failure of signal
between NCunit and
Servopack
!%!rvopack failure
Check Method
Did it occur during drilling and/or
threadcutt.ing?
Check if it recurs at idle running or
dry run.
Check the oil film on the guide face.
“ Ensure that alarm lamp of
Servopack does not light.
.~#1288D2=0 causes alarm.
#1289 D2=0 causes alarm.
Servopack alarm activates instantly
after power ONeven if wiring is correct
It may cause an alarm by
m#1288 D2=0
#1289 D2=0 without
causing Servopack alarm.
Solution
Wait until temperature of
servo motor cools down.
Then, restart operation by
alleviating the condition
after clearing alarm with
alarm reset button of
Servopack.
Check oil tank and oil
pipe according to instruc-
tion manual of machine.
Check wiring status
between NCunit and
Servopack according to
Connection Manual.
Replace Servopack.
Contact YASREP.
–24–
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