6.8 Wiring the digital input
The digital input “Sensor 1” can be used, for example, to start and terminate the read
cycle by an external trigger sensor.
a) Supply of the trigger sensor by the device
Signal 2
3.32K
6.64K
V
S
V
S
V
in
4
PNP sensor 1
GND
GND
Device 3
GND
V
S
1
4
3
NC
2
Figure 24: Wiring of digital input “Sensor 1”, supply of trigger sensor by the device
1
Trigger sensor (PNP sensor)
2
“Sensor 1” input signal
3
Device
4
Input voltage V
in
b) Supply of the trigger sensor with external voltage
The supply voltage of the device and the supply voltage of the trigger sensor must have
the same ground.
NOTICE
In case of external voltage supply of the trigger sensor, the connecting cable part no.
2096347 is not suitable for connecting the trigger sensor to the device.
Signal 3
3.32K
6.64K
V
S
V
S
V
in
5
PNP sensor 1
GND
GND
Device 4
GND
NC
V
S ext
2
1
2
4
3
Figure 25: Wiring of digital input “Trigger”, supply of trigger sensor by external voltage
1
Trigger sensor (PNP sensor)
2
External voltage V
S ext
for supplying the trigger sensor
3
“Sensor 1” input signal
4
Device
5
Input voltage V
in
Table 13: Characteristics of “Sensor 1” digital input
Type Switching
ELECTRICAL INSTALLATION 6
8024536//2019-08-30 | SICK O P E R A T I N G I N S T R U C T I O N S | RFU61x
45
Subject to change without notice
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