Having issues with Alarm Display: A.d01 Alarm Name: Position Error Pulse Overflow Alarm at Servo ON 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.d01
Alarm Name: Position Error Pulse Overflow Alarm at Servo ON.
Situation at Alarm Occurrence: Occurred when the control power supply was turned ON.
Cause: Excessive position errors accumulated while the servo is OFF
Corrective Actions: Do not run the servomotor in servo OFF status.
Cause: With the setting not to clear the errors while the servo is OFF, the servomotor was running.
Corrective Actions: Make the setting so that the errors are cleared while the servo is OFF.
Corrective Actions: Adjust the detection level.

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.
