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Apsf sensor, Alx 720, Operators manual – Avery Dennison ALX 720 User Manual

Page 107: 3 apsf sensor

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Operators Manual

ALX 720

4/09

Page 107

Connections and signals

10.3.3 APSF sensor

For the APSF function (Automatic speed follower) a rotary encoder has to be installed. For
optimum labelling accuracy the rotary encoder should be selected so that it produces one pulse
for every 0.125 mm of product movement. The connection of the encoder should be done with
a shielded cable. For correct operation the rise and fall time of the encoder signal should be
1 µs.

+24V

GND

14

5
9
4
8
3
7
2
6

1

GND

Signal

Supply

Shield

12

33
27

CN33

NPN sensor

5
9
4
8
3
7
2
6

1

Figure 27 Connection of a NPN type APSF sensor

+24V

GND

14

12

33
27

CN33

5
9
4
8
3
7
2
6

1

5
9
4
8
3
7
2
6

1

GND

Signal

Supply

Shield

PNP sensor

Figure 28 Connection of a PNP type APSF sensor