EUCHNER CES-I-AR-M-C04 (Multicode) - Manual (Page 7)

Operating Instructions Safety Switch CES-I-AR-M-C04
7
The system is designed so that failures will not result in the loss of the safety func-
tion. The occurrence of failures is detected by cyclic self-monitoring at the latest
on the next demand to switch the safety outputs (e.g. on starting).
If the safety door with the actuator should settle over time, the actuator can drift
out of the switch operating distance. The device recognizes this situation and
indicates that the actuator is in the limit range. This allows the safety door to be
readjusted in time.