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Alarm Display: A.870. Alarm Name: Fully-closed Serial Encoder Checksum Alarm on Sony SI-F209 Electronic Part Mounter

Alarm Display: A.870

Alarm Name: Fully-closed Serial Encoder Checksum Alarm

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

Cause: A serial converter unit fault occurred and was detected by self-diagnosis of serial converter unit.
Corrective Actions: Set up the serial converter unit. If this alarm occurs frequently replace the senate converter unit.

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

2. Situation at Alarm Occurrence: Occurred when Sensor ON (SENS ON) command was issued

Cause: A serial converter unit fault occurred and was detected by self-diagnosis of serial converter unit.
Corrective Actions: Set up the serial converter unit. If this alarm occurs frequently replace the senate converter unit.

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