Input Signals - Avery Dennison ALS 330 User Manual

Operators Manual
ALS 330/430

8.3 Input signals

This machine (dispenser) is provided with photo coupled inputs for:
the product sensor signal
an inhibit signal for inhibiting labelling
a signal from an OD control which shows the end of the material roll.
a signal from an automatic product speed follower
the EP applicator signals from the HOME and END switches
an unused input for future extensions or customer specific software (used for loop control in
the 720)
The inputs are galvanically separated through photo couplers to connect to PNP or NPN
outputs. The wiring and the connection of the signal plug is shown otherwise. The input voltage
across the inputs must be in the range of 15 V to 30 V to switch active.
+24V DC
Opto-
isolator
2K2
Machine
Figure 21: Connecting NPN (left) or PNP (right) inputs.
Release 8/07
NPN
ln+
ln-
Signal
(alternative switch)
Page 60
PNP
+24V DC
ln+
Opto-
isolator
2K2
ln-
Machine
Signal
(alternative switch)
Connections and signals