The conditions for enabling external equipment in the safety circuit do not match. (for E0x series controllers)

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

Description: The contact states of the external enabling switch do not match between the 1st and second safety circuits.

Main causes:

1. There is an open circuit, short circuit, or ground fault in the external enabling switch wiring.

2. The external enabling switch is faulty.

3. A problem with the power sequence board.

Countermeasures:

1. Check the external enabling switch wiring and connections, and correct them if necessary.

2. Replace the external enabling switch.

3. Replace the power sequence board.

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

CAUTION
Before working on the safety circuit wiring, make sure that the controller power is turned off. If the wiring touches the enclosure while the controller power is on, the emergency stop circuit fuse will blow.

[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.