Alarm Display: A.720
Alarm Name: Continuous Overload
1. Situation at Alarm Occurrence: Occurred when the servo was turned ON.
Cause: The encoder wiring is incorrect or the connection is faulty.
Corrective Actions: Correct the servomotor wiring.
Cause: A SERVOPACK fault occurred.
Corrective Actions: Replace the SERVOPACK.
2. Situation at Alarm Occurrence: Occurred when the servomotor did not run by the reference input.
Cause: The servomotor wiring is incorrect or the connection is faulty.
Corrective Actions: Correct the servomotor wiring.
Cause: The encoder wiring is incorrect or the connection is faulty.
Corrective Actions: Correct the encoder wiring.
Cause: The starting torque exceeds the maximum torque.
Corrective Actions: Reconsider the load and operation, or reconsider the servomotor capacity.
Cause: A SERVOPACK fault occurred.
Corrective Actions: Replace the SERVOPACK.
3. Situation at Alarm Occurrence: Occurred during normal operation.
Cause: The actual torque exceeds the rated torque or the starting torque largely exceeds the rated torque.
Corrective Actions: Reconsider the load and operation, or reconsider the servomotor capacity.
Cause: A SERVOPACK fault occurred.
Corrective Actions: Replace the SERVOPACK.