Connecting Multiple Safety Contact Edges Per Sensor Circuit (Figure 2); Commissioning / Functional Test - ASO Safety Solutions ELMON inducti ve 74-312 Manuel D'utilisation

ELMON inductive 74-312
Inductive signal transmission system
6.7 Connecting multiple safety contact edges per sensor circuit (figure 2)
One or more safety contact edges can be connected to sensor input O or C For this purpose, the
individual safety contact edges are connected in series according to figure 2
Up to five safety contact edges may be connected in series, whereby the total cable length must not
exceed 25 m
The length of one safety contact edge may be up to 25 m
Before connecting the safety contact edges that are connected in series, it is recommended that the
resistance value of the arrangement is to be measured
The resistance must be 82 kΩ ± 500 Ω when the safety contact edge is inactive and must not exceed
500 Ω when it is active
!
ASO sensors must not be connected in parallel.
safety contact edge 1
O
2
C
Figure 2: Wiring of multiple safety contact edges

7 Commissioning / functional test

The gate system must be tested for proper function after all of the electrical connections have been
established and the supply voltage has been turned on To do this, activate each of the safety contact
edges one after another and check the corresponding reactions of the switching unit
safety contact edge 2
2
safety contact edge „n"
2 2
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