20
21
Sensor 1
Sensor 2
Sensor „n“
X1
X2
Figure 1: Wiring of multiple sensors; in this example: safety contact edge
2
2
2
2
8.3 Connection of multiple sensors per sensor circuit
ASO sensors must not be connected in parallel.
One or more sensors can be connected to sensor inputs
X1 X2
or
Y1 Y2
. For this purpose, the individual
sensors are connected in series according to figure 1.
An unused input can be bridged with an 8.2 kΩ resistor.
Safety edges SENTIR edge:
Up to five SENTIR edge may be connected in series. The maximum total length oft the SENTIR edge shall not
exceed 100 m. The length of one SENTIR edge may be up to 25 m.
The total cable length oft the in series connected SENTIR edge must not exceed 25 m.
Safety bumper SENTIR bumper:
Up to five SENTIR bumper may be connected in series. The maximum total length oft the SENTIR bumper shall
not exceed 15 m. The length of one SENTIR bumper may be up to 3 m.
The total cable length oft the in series connected SENTIR bumper must not exceed 25 m.
Safety contact mat SENTIR mat:
Up to ten SENTIR mat may be connected in series. The maximum total area shall not exceed 10 m
2
. The
maximum size of an SENTIR mat is 1350 x 2350 mm.
The total cable length oft the in series connected SENTIR mat must not exceed 25 m.
Before connecting the sensors that are connected in series, it is recommended that the resistance value of
the arrangement is to be measured. The resistance must be 8.2 kΩ ± 500 Ω when the sensor is inactive and
ELMON relay 34-32
Safety Relay
English
