8.3 Alarm/Warning Display and Troubleshooting
140
A.0b0
Servo ON
Reference
Invalid
Alarm
After executing JOG
or home position
search function
through CX-Drive,
the MECHA-
TROLINK-
II
com-
mand SV_ON was
sent.
Sending the MECHA-
TROLINK-
II
command
SV_ON causes an alarm
after executing JOG or
home position search func-
tion through CX-Drive.
Turn the power supply OFF
and then ON again or release
the communications using
DISCONNECT command and
set up the communications
again.
A.100
Overcurrent
Occurred when the
power supply was
turned ON or while
the servomotor was
running.
The connection between
grounding and U, V, or W is
incorrect.
Check and then correct the
wiring.
The grounding line has con-
tact with other terminals.
A short circuit or ground
fault
• Between the grounding
and U, V, or W of the ser-
vomotor main circuit cable
Repair or replace the servo-
motor main circuit cable.
Note: Always confirm that
there is no short circuit or
ground fault before turning ON
the power supply again.
The wiring of the regenera-
tive unit is incorrect.
Check and then correct the
wiring.
A short circuit between the
grounding and U, V, or W of
the SERVOPACK
• Replace the SERVOPACK.
• Contact your Omron
Yaskawa representative.
A short circuit or ground
fault
• Between the grounding
and U, V, or W of the ser-
vomotor
• Between phases U, V, or
W
• Replace the SERVOPACK.
• Contact your Omron
Yaskawa representative.
The overload, or the regen-
erative power exceeds the
regenerative power pro-
cessing capacity.
Reconsider the load and oper-
ation conditions.
The direction or the dis-
tance of the SERVOPACK
to other devices is incorrect.
Heat around the SERVO-
PACK occurred.
Correct the installation condi-
tions so that the ambient tem-
perature for the SERVOPACK
is 55
°
C max.
The output exceeds the rat-
ing.
Reduce the load.
Combination of SERVO-
PACK and servomotor is
incorrect.
Check the relevant catalogue
and select the correct combi-
nation.
(cont’d)
Alarm
Display
Alarm Name
Situation at Alarm
Occurrence
Cause
Corrective Actions
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