[Servo board XX] LS override control switch contacts do not match. (for E0x series controllers)

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

Description: The switch states for disabling the limit switch function do not match between safety circuits 1 and 2.

Main causes:

1. An open or short circuit in the switch wiring that disables the limit switch function.

2. The switch that disables the limit switch function (power sequence board) is faulty.

3. A problem with the servo board.

4. The motherboard is faulty.

Countermeasures:

1. Check the harness between the motherboard (X206) and servo board (X502) for open or short circuits.

2. Replace the power sequence board.

3. Replace the servo board.

4. Replace the motherboard.

Reference: Select <Display 1> → → <Safety Circuit Monitor 2> on the teach pendant screen to check the safety circuit status. For details of safety circuit input monitoring, refer to the Operation Manual.

[NOTE]

1. This error does not occur if the safety circuit is configured as a single circuit.
2. This error can be reset only when the single and double circuits are both open (OFF) at the same time. If either circuit is closed, the error cannot be reset.