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