14
15
ELMON
relay
32-242
Safety Relay
English
3. General and operational description
The relay is for evaluating sensors, including safety contact mats, safety contact strips and safety bumpers
for making safe pinch and shear points.
Two separate signalling circuits can be connected to the relay, each controlling a switching output. The
quiescent current monitor of the sensor is enabled by an integrated terminator in the sensor.
The relay monitors these two signalling circuits permanently for activation or breaking (cable break). If the
expected quiescent current is flowing, the output relays are operated and the switch contacts are closed. If
the sensor is activated or the sensor circuit is broken, the relay switch contacts open.
The relay is designed in accordance with EN ISO 13849-1:2015 for Category 3. To comply with Category 3
the relay is manufactured redundant and with two mutually activating forcibly guided safety relays.
The monitoring state of the sensor and the operating voltage supplied are shown by LEDs.
In the event of a fault alarm, all safety outputs are inactive.
The unit can be used in a household environment as well as an industrial environment up to
an altitude of 2000m above mean sea level. The unit must not be operated in areas with major
temperature changes .
4. Intended use
The relay is able to fulfil its safety task only if it is used for the purpose it was designed for.
Appropriate utilisation of the relay is use as a protective device in combination with safety contact mats,
safety bumpers and safety contact strips of 8.2 kΩ resistance to quiescent current monitoring.
Any utilisation beyond this does not constitute appropriate intended use. The manufacturer accepts no
liability for damage arising from inappropriate use .
Use in special applications requires the approval of the manufacturer.
The use of the safety relay at heights above 2000 m above sea level or in potentially explosive areas is not
approved .
ELMON relay 32-242 Block circuit diagram
Stop
Channel 1
Stop
Channel 2
Sensor
Channel 2
Sensor
Channel 1
Rref
+Ub
Uref
Rref
+Ub
Uref
Rel
Rel
24V AC/DC
