Avery Dennison ALS 204 Service And Installation Manual page 40

3 I
NSTALLATION AND DEINSTALLATION
3.2 C
ONNECTING THE SENSORS
Connection diagram
Label sensor
[44] Connection diagram for photoelectric label sensor
The LED current at pin 2 controls the sensitivity
of the sensor.
+24V
1
Label
4
signal
NPN
input
LED current
2
NPN
output
0..20mA
GND
3
40
+24V
ALS
20X
256
Label gap
detection
signal
Current feed
back signal
LED current
setting