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Chapter
5
Operating Instructions
CLV 490 Bar Code Scanner
5-24
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8 009 993/O824/20-12-2004
Electrical installation
For connecting the switching input via the CDB 420 or CDM 490 Connection Module, see
the Operating Instructions for the
"CDB 420 Connection Module"
(no. 8 010 001, German/
English) respectively the Operating Instructions for the
"CDM 490 Connection Module"
(no. 8 010 005, 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 CLVs 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 maximum 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 CLV.
contains the characteristic data for these inputs.
shows the input combinations based on the distance configurations. The inter-
action of the switching input functions is shown in
Note
In the
CDB 420
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 CLV without heater, 24 V DC +20 % /–10 % for CLV with heater