Chapter
4
Operating Instructions
CLV 45x Bar Code Scanner
4-12
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8 009 139/K949/06-06-2002
Installation
4.4.2
Installing an external reading-pulse sensor
If the CLV is triggered by means of an external reading-pulse sensor, the sensor is installed
near the CLV. In the default setting the "Sensor 1" switching input is selected as the trigger
source for this triggering type.
shows two examples of the installation site of a photoelectric reflex switch. This
depends on the distance a of the bar codes to the front object edge. Depending on the ap-
plication the sensor is to be installed so that bar codes on objects of different sizes can be
read completely during the time window of the evaluation (reading interval).
1.
Install the reading-pulse sensor at the installation site.
2.
Connect the reading-pulse sensor via the AMV/S 40 connection module to the
"Sensor 1" switching input of the CLV (refer to
Chapter 5.5.7 Wiring the "Sensor 1"
3.
Connect the CLV to the AMV/S 40 connection module and switch on the supply voltage
of the module (refer to
Chapter 5.5.3 Connecting the supply voltage, Page 5-4
After the start the CLV confirms the successful self-test with a beeper sound and shortly
afterwards starting of the reading mode is signaled by two consecutive sounds. The
"Device Ready" LED lights up.
4.
Connect the PC to the terminal interface of the CLV. To do so connect the RS-232 data
connection cable to the 9-pin "Service" connector of the module (refer to
Connecting the CAN interface, Page 5-6
5.
Start Windows and the "CLV-Setup" software on the PC (refer to
).
6.
Select the R
EADING
MODE
menu item under V
IEW
in the menu bar.
The terminal emulator window opens. The CLV is in reading mode.
During all the further steps observe the behavior of the reading result!
Line scanner with oscillating mirror:
In reading mode the CLV deflects the scan line in the default setting with a frequency of
1 Hz around the position CW = 50 at a maximum angle of
±
20
°
.
50 CW corresponds to a light emission under 105
°
.
7.
Manually guide objects with bar codes successively under realistic conditions into the
reading area of the CLV.
8.
Check that the cycle is triggered and the read result.
9.
Repeat the procedure during transport mode.
10. Check whether the reading process is synchronized with arriving objects.
Fig. 4-12:
Line scanner: Installation example for positioning the external reading-pulse sensor
a
a
b < a !
b < a !
b
b
Bar code in the center or at the end of the object
to be conveyed
Bar code at the beginning of the object
to be conveyed