[Power sequence board] IO24V drop. (for E0x series controllers)

Error handling: Motor power OFF.
Error reset: Possible.

Content: The I/O 24V supply voltage from the servo board to the power sequence board has decreased, or the 24V supply voltage of the control power AVR has decreased.

Main causes:

1. In the external circuit, the input/output 24V wiring has a ground fault or short circuit.

2. A problem with the control power AVR.

3. A problem with the servo board.

4. A problem with the power sequence board.

5. An open circuit in the harness between the servo board (X501) and motherboard (X207).

6. A problem with the motherboard.

Countermeasures:

1. If input/output 24V wiring is used for external circuits, check the input/output 24V wiring in the external circuits for ground faults or short circuits. (Ground faults or short circuits can occur inside the robot arm wiring.)

2. If "D1560 [Power sequence board] Abnormal DC power supply (24V)." occurs simultaneously, refer to the countermeasures for D1560.

3. Replace the servo board.

4. Replace the power sequence board.

5. Check the harness between the servo board (X501) and motherboard (X207) for open circuits or poor connections.

6. Replace the motherboard.