Mechanical Mounting; Electrical Connection; Supply Voltage; Connection Of Sensor - ASO Safety Solutions ELMON 41-322 Manuel D'utilisation

Safety Relay

8. Mechanical mounting

The switching unit must be mounted correctly:
• In a dust-protected and moisture-protected switch cabinet or casing.
• For use in an environment with level 2 contamination.
• With a protection type of at least IP54.
• On a 35 mm DIN support rail according to EN 50 022.
The switching unit can be installed in any position.
The unit must not be operated in areas with major temperature changes.

9. Electrical connection

The switching unit can be destroyed by connection to the incorrect terminals.
Lines that are routed in the open air or outside the switch cabinet must be protected accordingly.
The limit values stated in the "Technical Data" for the supply voltage and the switching capability
of the relay must be observed.

9.1 Supply voltage

The supply voltage can optionally be effected by means of a mains voltage of 230 V AC 50/60Hz
(ELMON relay 41-822: 120 V AC 50/60 Hz) or a low voltage of 24 V AC/DC. For a supply with 24 V
AC/DC the voltage must correspond to the requirements for protective low voltages (SELV). The
supply line to the switching device must be protected by means of a 5x20 glass tube fuse 200mA
medium time lag.
Never apply both voltages simultaneously!
The 230 V (120 V) supply voltage must be applied to the A1 and A2 terminals. For operation with 24 V, the
supply voltage must be applied to the B1 and B2 terminals.
For a fixed installation a separating device must be available (for example, a main switch for the system). A
mains plug is sufficient as a separating device, if it is freely accessible.

9.2 Connection of sensor

The sensor with a terminating resistor of 8.2 kΩ must be connected to the X1 and X2 terminals.
The sensor without a terminating resistor is connected to the X1 and X2 terminals by means of one lead and
with the other lead to the X3 and X4 terminals.

9.3 Connection of several sensors per sensor circuit

ASO-Sensors must not be connected in parallel.
One or several sensors can be connected to the signal transmitter input. For this purpose, the individual
sensors are connected in series in accordance with Figure 1.
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