5.1 Alarm Indicator Lights
46
5 Troubleshooting
If the servomotor does not operate correctly due to setting failures, wiring faults, or other problems, refer
to this section and take corrective actions. Contact your OYMC representative if the problem cannot be
solved by the corrective actions described here.
• When taking a corrective action, turn OFF the power, remove the cause of the alarm, and then turn
ON the power again.
5.1 Alarm Indicator Lights
Alarm
Display
Alarm
Name
Conditions at
Alarm Occur-
rence
Cause
Corrective Action
Speed
error
Power was
turned ON.
A SERVOPACK fault occurred.
Replace the SERVOPACK.
Servo was
turned ON.
Phases U, V, and W in the ser-
vomotor are wired to the wrong
terminals.
Correct the servomotor wiring.
The encoder wiring is incorrect.
Malfunction occurred due to
noise interference in the
encoder wiring.
Take measures against noise for
the encoder wiring.
A SERVOPACK fault occurred.
Replace the SERVOPACK.
Servomotor
operation was
started or was
switched to
high-speed
operation.
Phases U, V, and W in the ser-
vomotor are wired to the wrong
terminals.
Check and correct the servomo-
tor wiring.
The encoder wiring is incorrect.
Malfunction occurred due to
noise interference in the
encoder wiring.
Take measures against noise for
the encoder wiring.
The position pulse reference
input has exceeded 10,000
pulses per revolution.
Input the correct reference
value.
A SERVOPACK fault occurred.
Replace the SERVOPACK.
NOTE
AL1
AL2
AL3
TOEP_C710806_01A_0_0.book Seite 46 Montag, 2. Juli 2007 4:24 16