Sign-of-life error in the Safety data

What does F01625 mean?

An error has occurred with the safety data's sign-of-life signal, indicating a potential communication or integrity issue within the safety functions. This can be caused by EMC disturbances or an inadmissible voltage at a Control Unit digital output. Such an error critically impacts the system's ability to maintain safe operation.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Select STO, then deselect it to attempt fault acknowledgment.

2. 4

   If the fault cannot be acknowledged, replace the Control Unit.