40
3.2 C
ONNECTING
THE
SENSORS
ALS
20X
256
Connection diagram
[44] Connection diagram for photoelectric label sensor
The LED current at pin 2 controls the sensitivity
of the sensor.
+24V
1
2
4
3
0..20mA
+24V
Label gap
detection
signal
NPN
input
NPN
output
Label
signal
LED current
GND
Label sensor
Current feed
back signal
LED current
setting
Summary of Contents for ALS 204
Page 1: ...ALS 204 206 256 SERVICE INSTALLATION MANUAL Labeller Edition 8 3 2012 Original version ...
Page 2: ......
Page 223: ......