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CONTENTS
3.1 ELECTRICAL CONNECTIONS
ALS
20x
256
GB
3.1.2 Connecting sensors
£ Check whether the required sensors are connected
before turning on the unit [30].
The minimum required sensors:
– Label sensor (installation location: dispensing edge)
– Product sensor (installation location: conveyor belt)
Additional optional sensors:
– Rotary encoder (required for speed adaption)
– External outer diameter checking sensor (provides
advance warning of the end of a label roll)
– Alternative label sensor; for example, capacitive
sensor, used to detect transparent labels.
You can find further information regarding
suitable sensor types, pin assignments, and so
on in the service manual.
[30] Sensor connectors:
A Label sensor
B Product sensor
C Optional: Rotary encoder
D Optional: Roll diameter check
E (ALS20x) Optional: Alternative label sensor
F (ALS256) Optional: Alternative label sensor
C D
EF
BA