Alarm Display: A880.
Alarm Name: Fully-closed Serial Encoder Data Alarm.
1. Situation at Alarm Occurrence: Occurred when the control power supply was turned ON.
Cause: A serial converter unit malfunctioned.
Corrective Actions: Turn the SERVOPACK and serial converter unit power supplies OFF and then ON again. If this alarm occurs frequently replace the serial converter unit.
Cause: A SERVOPACK fault occurred.
Corrective Actions: Replace the SERVOPACK.
2. Situation at Alarm Occurrence: Occurred during operation
Cause: A serial converter unit malfunctioned.
Corrective Actions: Turn the SERVOPACK and serial converter unit power supplies OFF and then ON again. If this alarm occurs frequently replace the serial converter unit.
Cause: A serial converter unit fault occurred.
Corrective Actions: Replace the serial converter unit.
Cause: A SERVOPACK fault occurred.
Corrective Actions: Replace the SERVOPACK.