
8. TROUBLESHOOTING
B–62835EN/01
310
1 Wrong setting of servo parameters 1800s.
2 Base PCB or servo module is faulty. (See Sec.8.13)
CAUTION
When the base PCB is replaced, all the data stored in
memory is lost. Set NC data again, referring to chapter 3
“input/output of data”.
#7
0204
#6
OFS
#5
MCC
#4 #3 #2 #1 #0
DGN
#6(OFS): A/D converter used for current feedback in the digital servo
is abnormal.
#5(MCC): Contacts of electromagnetic contactor in the servo amp. is
blown.→LED 7 lights.
Base PCB or servo module is faulty. (See Sec.8.13.)
CAUTION
When the base PCB is replaced, all the data stored in
memory is lost.
Set NC data again, referring to chapter 3 “input/output of
data”.
(START)
Correct?
Servo amplifier is faulty
Check LED of
servo amplifier
[7] ?
Check input power
voltage of servo amp.
Check magnetics circuit
LED [7] Contacts of electro–magnetic
contactor is blown in servo
amplifier
<Normal input power voltage>
200/220/230VAC
+10%,–15%
NO (Not lit)
YES
YES
NO
D #0(OFA):Overflow alarm
causes
When 1 is displayed at
DGN 204
D #6(OFS):A/D converter is
abnormal
D #5(MCC):Contacts of
electro–magnetic
contactor is blown within
servo amp.