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Operating Instructions
Chapter
10
CLV 490 Bar Code Scanner
8 009 993/O824/20-12-2004
©
SICK AG · Division Auto Ident · Germany · All rights reserved
10-61
Appendix
10.10.4 Important clarifications
¾
Sketch out the reading situation and enter the parameter values and variables for the CLV.
¾
Determine the reading range and installation height of the CLV above the conveyor belt:
With a covered conveyor belt with a 600 mm (23.6 in) width, the CLV can read an object
at a distance of 600 mm (23.6 in) (according to the reading field diagram in
). For a reserve of an additional 100 mm (3.9 in) and a maximum package
height of 600 mm (23.6 in), the resulting reading range of the CLV can be set to 700 to
1,300 mm (27.6 to 51.2 in) from the reading window.
The CLV is to be mounted 1,400 mm (55.2 in) above the conveyor belt, as the package
must be at least 100 mm (3.9 in) high.
¾
Determine the CLV’s distance measurement type:
For the required total field depth range of 600 mm (23.6 in), a height detection of the
focal position changeover is required. This is carried out by activating the CLV’s direct
distance measurement (the basis of the autofocus function).
10.10.5 Mounting and electrical connection
1.
Mount the CLV centered 1,400 mm (55.2 in) above the conveyor belt (vertically) accor-
ding to a)
, reading window facing downward.
2.
Align and screw in the CLV in a reading axis with the reading window at a 10
°
angle
against the required reading direction as shown in b)
The CLV can carry out a distance measurement from the front of the package to the
top of the package while it is in motion.
3.
Attach the pulse photoelectric switch and reflector to the conveyor belt so that there is
a distance of approx. 100 mm (3.9 in) between the photoelectric switch and the scan
line position on the package with the smallest height.
4.
Connect the CLV to the CDB 420 or CDM 490 connection module.
(
see
Chapter 5.2.3 Connections/cables for the CDB 420 Connection Modules,
) respectively
Chapter 5.2.4 Connections/cables for the CDM 490 Connection
.
Fig. 10-44: Parameterization example: prepare a sketch of the reading situation
Y1
Y2
Z1
10
Z2
550
200
300
700
100
1400
600
LS
100
All values in mm
alpha = 270
°
beta = 10
°
b) Side view
a) View from the front
z coord.
y coord.
x coord.
mm
inch
100
3.94
200
7.9
300
11.8
550
21.7
600
23.6
700
27.6
1,400
55.2