Alarm Display: A. 300
Alarm Name: Regeneration Error Detected
1. Situation at Alarm Occurrence: Occurred when the control power supply was turned ON.
Cause: A SERVOPACK board fault occurred.
Corrective Actions: Replace the SERVOPACK.
2. Situation at Alarm Occurrence: Occurred when the main circuit power supply turned ON.
Cause: Pn600 is set to a value other than “0” for a servomotor of 400 W or less, and an external regenerative resistor is not connected.
Corrective Actions: Connect an external regenerative resistor, or set Pn600 to “0” if an external regenerative resistor is not connected.
Cause: Check for incorrect wiring or a disconnected wire in the regenerative resistor.
Corrective Actions: Correct the wiring for the external regenerative resistor.
Cause: A SERVOPACK fault occurred, such as regenerative transistor or a voltage sensor fault.
Corrective Actions: Replace the SERVOPACK.
3. Situation at Alarm Occurrence: Occurred during normal operation.
Cause: Check for incorrect wiring and disconnection of the regenerative resistor.
Corrective Actions: Correct the wiring for the external regenerative resistor.
Cause: The jumper between B2 and B3 is removed for a servomotor of 500 W or more.
Corrective Actions: Correct the wiring.
Cause: The regenerative resistor is disconnected, so the regenerative energy became excessive.
Corrective Actions: Replace the regenerative resistor or replace the SERVOPACK. Reconsider the load and operation conditions.
Cause: A SERVOPACK fault, such as regenerative transistor and voltage sensor fault, occurred.
Corrective Actions: Replace the SERVOPACK.