Alarm Display: A.860. Alarm Name: Encoder Overheated on Sony SI-F209 Electronic Part Mounter

Alarm Display: A.860

Alarm Name: Encoder Overheated

1. Situation at Alarm Occurrence: Occurred when the control power supply was turned ON.

Cause: An encoder fault occurred.
Corrective Actions: Replace the servo motor.

Cause: A SERVOPACK board fault occurred.
Corrective Actions: Replace the SERVOPACK.

2. Situation at Alarm Occurrence: Occurred during operation.

Cause: The ambient temperature around the servomotor is too high.
Corrective Actions: The ambient temperature must be 40-degrees centigrade or less.

Cause: The servo motor load is greater than the rated load.
Corrective Actions: The servomotor load must be within the specified range.

Cause: An encoder fault occurred.
Corrective Actions: Replace the servo motor.

Cause: A SERVOPACK board fault occurred.
Corrective Actions: Replace the SERVOPACK.