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Chapter
4
Operating Instructions
CLV490 Bar Code Scanner
4-12
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8009993/RA61/2007-07-20
Installation
ground“ must be selected. Alternatively a fixed focus position can be set. See
Parameterizing focus control, Page 6-12
Installing the reading pulse sensor for start/stop mode:
1.
Mount the reading pulse sensor.
2.
Connect the reading pulse sensor to the "Sensor (1)" switching input of the CLV490 via
the CDB420 or CDM490 Connection Module (see
"Sensor" switching input, Page 5-22
3.
Connect the CLV490 to the CDB420 or CDM490 Connection Module and switch on
the power supply to the module (see
Chapter 5.5.3 Connecting the supply voltage,
).
After it has started, the CLV490 confirms that the self-test was successfull and switches
to Reading mode ("Device Ready" LED lights up).
4.
Connect the PC to the auxiliary interface of CLV490. To do so, connect a 3-core RS 232
data cable (null modem cable) to the internal 9-pin "Aux" plug of the CDB420 or
CDM490 (see
Chapter 5.5.5 Connecting the CAN interface, Page 5-21
5.
Start Windows and the "CLV-Setup" program (see
Chapter 10.6.3 Starting CLV-Setup,
).
6.
From the V
IEW
menu, choose R
EADING
M
ODE
.
The Terminal Emulator is launched. The CLV490 is in Reading mode (default: SMART
decoder).
Monitor the reading result during each of the subsequent steps!
Line scanner with oscillating mirror:
In default setting, the CLV490 deflects the scan line (default setting) about the fixed po-
sition CW = 50 with a frequency of 1 Hz at a max. angle of
±
20
°
(
±
40 CW).
50 CW corresponds to an angle of emergence of 105
°
.
7.
Move objects with bar codes into the CLV490 reading field manually under realistic con-
ditions and check whether the reading result and trigger pulse are correct.
8.
Repeat the procedure with the conveyor switched on. Check whether the reading
procedure is synchronized with the objects.
Parameterizing an external sensor as a trigger source:
These settings are not required if the CLV490 is operated with the default configuration.
1.
Choose the D
EVICE
C
ONFIGURATION
tab.
2.
In the R
EADING
T
RIGGER
S
OURCE
section click the option S
ENSOR
I
NPUT
(A
CTIVE
H
IGH
).
3.
Download the settings to the CLV490 by clicking
in the toolbar.
The D
OWNLOAD
P
ARAMETERS
dialog box is then displayed.
4.
Confirm the dialog box by choosing P
ERMANENT
.
The CLV490 operates with the "Sensor" switching input as an external trigger source.
The reading pulse starts when the input is energized (high).
4.4.3
Installing incremental encoder
In the reading mode "Tracking", an incremental encoder is required for determining which
bar codes belong to which objects. The encoder is also required to separate bar codes of
the same symbology with identical content.
1.
Install the incremental encoder (e. g. no. 2022714) near the CLV490 but in front of it,
preferably against the direction of the conveyor belt. The increment pulses must
originate from the area of the conveyor belt which the CLV490 is reading.
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