Omron SJDE-ANA-OY Manual page 143

Alarm Alarm Name
Display
A.100
Overcurrent
A.280
Emergency
Stop
A.400
Overvoltage
A.410
Undervolt-
age
Situation at Alarm
Occurrence
Occurred when the The SERVOPACK is faulty.
power supply was
turned ON or while
the servomotor was
The servomotor is faulty.
running.
Occurred during The emergency stop signal
execution of is not connected.
MECHATROLINK-II
command SV_ON.
Occurred while the The emergency stop signal
servomotor was was input.
running.
Malfunction occurred on the
emergency stop signal
Occurred when the The AC power supply volt-
power supply was age is 290 V or more.
turned ON.
The SERVOPACK is faulty.
Occurred during AC power supply voltage
operation. changed excessively.
The servomotor speed is
high and the load moment
of inertia is excessively
large (insufficient regenera-
tive power processing
capacity).
The SERVOPACK is faulty.
Occurred when the The power supply was
power supply was turned ON again before the
turned ON. SERVOPACK power supply
was turned OFF.
A temporary power failure
occurred.
The SERVOPACK is faulty.
8.3 Alarm/Warning Display and Troubleshooting
Cause
141
Corrective Actions
• Replace the SERVOPACK.
• Contact your Omron
Yaskawa representative.
Check the resistance between
lines of the servomotor, and
replace the servomotor if any
unbalance is found.
Wire correctly according to the
descriptions in 3.7.3 Emer-
gency Stop Signal Input.
Refer to 4.7.5 Operation
Sequence When E-STP Sig-
nal is Input.
Check and then correct the
wiring.
Keep the AC power supply
voltage to the specified range.
• Replace the SERVOPACK.
• Contact your Omron
Yaskawa representative.
Keep the AC power supply
voltage within the specified
range.
• Reconsider the load and
operation conditions.
• Install a regenerative unit.
• Replace the SERVOPACK.
• Contact your Omron
Yaskawa representative.
Turn ON the power supply
again after the REF LED goes
out.
Reset the alarm, and then
restart the operation.
• Replace the SERVOPACK.
• Contact your Omron
Yaskawa representative.
(cont'd)