Operating Instructions
Chapter
5
CLV490 Bar Code Scanner
8009993/RA61/2007-07-20
©
SICK AG · Division Auto Ident · Germany · All rights reserved
5-23
Electrical installation
For connecting the switching input via the CDB420 or CDM490 Connection Module, see the
Operating Instructions for the
"CDB420 Connection Module"
(no. 8010001, German/En-
glish) respectively the Operating Instructions for the
"CDM490 Connection Module"
(no. 8010005, German/English).
Note
An external pulse is not required for Percentage Evaluation mode.
5.5.8
Connecting the "IN 0" to "IN 4" switching inputs
If the Autofocus function is not used and the CLV490 dynamic focus control function is to
be triggered by external sensors, the sensors are connected to the five inputs "IN 0" to
"IN 4". Together with the internal assignment table, these can be used to configure a max-
imum of 32 switching states for up to 8 distance configurations. The dynamic focus control
function is selected for all inputs by default.
Additional function "IN 3":
The "IN 3" input can also be used as a trigger source for the One-Shot function of the oscil-
lating mirror.
Additional function "IN 4":
The input "IN 4" can also be used as:
•
A trigger source for the One-Shot function of the oscillating mirror
•
An input for a belt increment signal in reading mode "Tracking" and/or for separating
bar codes of the same symbology with identical content
•
A trigger source for the end of reading interval
In this case, a maximum of 16 switching statuses can be used for dynamic focus control.
shows the connections for the "IN 0" to "IN 4" switching inputs.
shows
the pin assignment on the CLV490.
contains the characteristic data for these
shows the input combinations based on the distance configurations. The
interaction of the switching input functions is shown in
Note
In the
CDB420
Connection Module only the signals of the "Sensor“ and "IN 0“ switching
inputs can be connected using the terminal strips.
Fig. 5-6:
Connections of the "IN 0" to "IN 4" switching inputs
IN X
IN GND
GND
GND
GND
OUT
2k6
1
Y
9
5
1
Y
9
5
V
S
V
S
V
S
V
S
CLV
Switch
PNP sensor
Pin assignment for
IN X
see
V
S
= 18 to30 V DC for CLV490 without heater,
24 V DC +20 % /–10 % for CLV490 with heater
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