[Servo board XX] (Power regeneration control board (No. XX)) PLL error or power supply circuit abnormality. (for E0x series controllers)

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

Description: An external power supply abnormality was detected on the power regeneration control board.

Main causes:

1. A problem with the power regeneration control board.

2. A short circuit, short circuit, or faulty wiring in the harness between the circuit breaker and power regeneration unit.

3. A problem with the power supply system (phase loss, three-phase imbalance, reduced supply voltage, or frequency outside 50Hz±5% or 60Hz±5%).

4. A problem with the power supply unit.

Countermeasures:

1. Replace the power regeneration unit.

2. Check the wiring between the circuit breaker and the power regeneration unit.

3. Check the power supply system for abnormalities.

4. Replace the power supply unit.