ASO Safety Solutions Elmon Relay 42-622 Instructions page 3

ELMON relay 42-622
Sicherheitsschaltgerät / Safety Relay / Relais de sécurité
In addition the device has been designed in accordance with EN 62061 "Functional safety of safety-related electrical, electronic and programmable
electronic control systems". The switching device can meet a safety function up to SIL 2 in conjunction with ASO sensors.
The monitoring state of the sensors and the applied operating voltage are indicated by LED.
If there is a fault alarm, all safety outputs are inactive.
3 Mechanical mounting
The switching unit must be mounted correctly:
• On a 35 mm DIN support relay according to EN 50 022.
!
• 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.
4 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.
4.1 Supply voltage
The supply voltage can optionally be effected by means of a mains voltage of 85 - 265 V AC (50/60Hz) or a low voltage of 24 V AC/DC. For a supply
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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 85 - 265 V supply voltage must be applied to the A1 + A2 terminals. For operation with 24 V, the supply voltage must be applied to the B1 + 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.
4.2 Connection of sensor
The sensor with a terminating resistor of 8.2 kΩ must be connected to the X1 + X2 and/or Y1 + Y2 terminals. If a channel is not used, it must be assigned an
8.2 kΩ resistor (included in delivery).
4.3 Connection of several sensors per sensor circuit
!
ASO-Sensors must not be connected in parallel.
One or several sensors can be connected to the sensor inputs. For this purpose, the individual sensors are connected in series.
4.4 Connection of control circuits
The outputs of the redundant relays are separately led out.
Connect the control circuit to be monitored to the 1.13 + 1.24 and/or 2.13 + 2.24 terminals. If the switching contacts are redundantly continued, the
factory-inserted bridge between the 1.14 + 1.23 and/or 2.14 + 2.23 terminals must be removed.
!
In the event of any separate use of the switching contacts only voltages with the same potential may be connected (same safety function). The use of
different voltage potentials does not correspond to the intended use.
Depending on the nominal current, the control circuits are to be protected by a corresponding fuse, or the nominal current on the control circuits must be
limited to the maximum switching current by other measures.
4.5 Connection Reset
There are two operating modes for the reset function, automatic and manual.
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The manual reset is activated on delivery condition.
-> Manual release of the outputs after elimination of a fault!
For the „automatic reset" operating mode, a bridge must be inserted between the clamps S1 + S2.
For the „manual reset" operating mode, a bridge S1 + S2 must be removed (factory setting) and the reset button (normaly open) must be connected to the
clamps Z1 + Z2.
4.6 Connection of signaling contact
The 1.33 + 1.34 and 2.33 + 2.34 signaling contacts only serve as auxiliary contacts (signaling, display etc.) and must not be integrated into the safety circuit.
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Extra Low voltages (24 V) and low voltages (230 V) may be switched with the signal contacts (mixed operation permitted).
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