Drive Inoperative - Mitsubishi MELSEC-A A1SD71-S2 User Manual

8. TROUBLESHOOTING
MELSEC-A
8.2.2
Drive inoperative
I
I
Check LOCK switch.
In LOCK position?
YES
Set LOCK switch to OFF.
I
Check LEDs on AlSD71 front
panel.
READY 0 0 XZERO
SERVO X 0 OYZERO
-ERR
[
Y 0 0 HOLD
XBUSY 0 0 BAT
YBUSY 0 0 WDT] ERR
SERVO-ERR
YES
Turn on servo ready signal.
HOLD, WDT ERR
If CPU reset does not remedy error, contact
NO
nearest Mitsubishi representative.
NO
Switch on PC ready signal (YZD).
I
I
I
Check pulse output
NO
Reset parameter pulse output mode according to
'
motor drive unit.
.
YES
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