Operating Instructions
Chapter
6
CLV 490 Bar Code Scanner
8 009 993/O824/20-12-2004
©
SICK AG · Division Auto Ident · Germany · All rights reserved
6-3
Operation
6.3
Quick start
A PC need not be connected when the CLV is operated with the factory default settings.
Code 39, 2/5 Interleaved, and Code 128 are the default code types enabled (free code
lenght, 2/5 Interleaved: interval 4 to 50 characters).
6.3.1
Starting up the CLV with the factory default settings
1.
Connect the CLV as followed:
CDB 420 Connection Module: use the cable no. 2 027 046 (connector cover, IP 65).
Alternatively, connect the CLV via the cable no. 2 030 023 (connector cover with exter-
nal parameter memory, IP 65).
CDM 490 Connection Module: use two cables no. 2 020 302.
Alternatively, connect the CLV via the cable no. 2 020 307 (connector cover with exter-
nal parameter memory, IP 65).
2.
Connect the reading pulse sensor (e. g. photoelectric reflex switch) to the "Sensor (1)"
switching input of the CLV via the CDB 420 or CDM 490 (see
the "Sensor" switching input, Page 5-23
3.
Switch on the power supply of the CDB 420 or CDM 490.
The CLV starts. The "Device Ready" LED lights up.
The "Result 1" ("Device Ready") output switches.
CLV with external parameter memory in the connector cover connected
:
If no
CMC 400 parameter memory module
is available in the
CDB 420 or CDM 490
Connection Module
the CLV will operated as followed:
If an external parameter memory in the connector cover containing a corresponding
parameter set is connected to the CLV, the "Device Ready" LED blinks for 10 s when
the device starts up correctly and then lights up constantly.
If the external parameter memory in the connector cover is empty, the CLV copies its
parameter set to the external parameter memory. Then the "Device Ready" LED lights
up. The CLV is ready for operation.
If a
CMC 400
is available in the
CDB 420 or CDM 490
the CLV cancels the function
of the external parameter memory in the connector cover. The CLV supports the CMC
400 from firmware V 3.30 on.
Line scanner with oscillating mirror:
In the default setting, the CLV deflects the scan line around the position CW = 50 with
a frequency of 1 Hz and an oscillating amplitude of
±
20
°
(
±
40 CW). 50 CW correspond
to a deflection angle below 105
°
.
4.
Start the reading pulse: block the light path of the photoelectric switch or close the
switch. The "Sensor" LED lights up. The CLV switches the laser diode on and the red
scan line appears.
5.
Present the bar code pattern (
) to the CLV at the reading distance
specified in
The scan line must not hit any object in a distance closer to the CLV than the
represented bar code (default setting: autofocus mode "Minimum distance").
6.
Align the bar code in such a way that the red scan line is almost at a 90
°
angle to the
bars (line scanner) or that the red scan line sweeps the bars at a 90
°
angle when it is
deflected (oscillating mirror).
7.
End the reading pulse: unblock the light path of the photoelectric switch or open the
switch. The "Sensor" LED is extinguished. The CLV switches the laser diode off. The CLV
confirms that the bar code was read successfully (the "Read Result" LED lights up for
100 ms). The "Result 2" ("Good Read") output is switched for a duration of 100 ms.