Having issues with Alarm Display: A.720. Alarm Name: Continuous Overload on Sony SI-F209 Electronic Part Mounter? Read our step-by-step SMT maintenance solution below. If you require replacement feeders, nozzles, or sensors, contact SMTBOX for OEM-compatible parts.
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.
Our editorial team consists of senior SREs, mechanical engineers, and SMT assembly specialists with over 15 years of industry experience in PCB assembly line optimization. All technical articles are reviewed and verified for mechanical and electronic compatibility before publication.