[MCXX] Power module supply voltage drop on MC power board. (Servo board XX) (for E0x series controllers)

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

Description: A drop in the 6.9V power supply voltage was detected inside the power supply unit power board (1WU).

Main causes:

1. A problem with the power supply unit power board.

2. An open circuit in the signal line between the power supply unit power board and power supply unit control board.

3. A problem with the power supply unit control board.

4. A problem with the power block.

5. A problem with the power regeneration unit. (E03)

Countermeasures:

1. Check the internal wiring between the power supply unit power board (X362) and power supply unit control board (X306) for open circuits, etc.

2. Replace the power supply unit.

3. Replace the power supply unit control board.

4. Replace the power block.

5. Replace the power regeneration unit. (E03)