Collamat Etiprint Inline, Operating Instructions Manual

Page: 159 / 188

7.1.2 Comparator inputs
The comparator inputs are used to connect the peripheral unit signals generated by the dis-
penser. These are connected with the
DISPENSER -plug through a cable to the monitor. The sig-
nals are connected inside of the traction unit.
The inputs are protected against wrong polarity and they are active while being pulled to GND
(0V, ground). (The peripheral units of HM Collamat AG have NPN-outputs to 0V). Figure 22
shows the input diagram of the comparator inputs:
On : >4mA (or < 2V)
Off: 0mA (or > 8V)
Vmax: 24V
Figure 22: Comparator input diagram
The inputs are active while a current of minimum 4mA is pulled to GND.
The following input signals are equipped with comparators:
GSC1 Incremental encoder or speedmeasuring scanner
GSC2 Goods scanner
LSC Label scanner
TUNIT Traction unit, paperend sensor
READY READY-signal from the flatprinter
LLO Paperstock control, unwinder empty
7.2 Functional description of the inputs
7.2.1 Goods scanner GSC1 and GSC2 (Good SCanner)
The inputs GSC1 and GSC2 are used to scan the goods. For all three speedmeasuring modes
(fixed speed, measuring and incremental) GSC2 is used for scanning the goods. GSC1 is used
for the speedmeasuring.
For the fixed speed GSC1 is not used.
For the scanning with the measuring scanner, GSC1 is the first activated scanner, seen in
transportation direction. (GSC1 must first be interrupted). The mechanical distance to the sec-
ond scanner can be programmed on the control panel. (The distance must be in the range be-
tween 10 mm and 100 mm).
For the speed measuring with an incremental encoder GSC1 is connected to the NPN output
of the encoder.
10nF
(LSC:10k)
1k8
+5V
74AC14
-
+
LM339
3k3
6k8
+12V +12V
100k
2k2
1N4148
GND
IN
100k
1n
5999.545-01G 28.02.2006 WM
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