DIN rail-mounted safety monitor CES-AR-AES-12

• Central evaluation of an AR switch chain • Status of each individual switch can be recognized • For switch chains of up to 12 devices • Four individual safe relay contacts • Category 4/PLe according to EN ISO 13849-1 Function The AR evaluation unit is used to evaluate the individual safety switches in a CES-AR-... switch chain and the safe interruption of a safety circuit. The unit has two inputs for connection of a CES-AR... switch chain. The safety contacts are switched as a function of the input signals. Downstream parts of the safety circuit can be monitored using a feedback loop. The switching states of the connected safety switches can be signaled by means of monitoring outputs. If the actuator on one of the safety switches in the switch chain is moved out of the actuating range, the AR evaluation unit opens its contacts and the corresponding monitoring output is reset.