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Operating Instructions
Chapter
6
CLV490 Bar Code Scanner
8009993/RA61/2007-07-20
©
SICK AG · Division Auto Ident · Germany · All rights reserved
6-13
Operation
case, CLV490 measurement inaccuracies must be taken into account when the rectangular
autofocus space is defined.
Oscillating mirror
:
When the background is being taught in, the behavior of the oscillating mirror depends on
the selected mode (see
Chapter 6.5.4 Background teach-in, Page 6-44
Action
Settings in CLV-Setup
1. Select autofocus mode
Ö
R
EADING
C
ONFIGURATION
tab
Ö
A
UTOFOCUS
section
Ö
M
ODE
– Minimum distance
See also overview in
.
–
or
–
Ö
M
ODE
– Differential background
Define the scanner position referred to the conveyor belt:
see
, reading space, scanner position
Limit autofocus area:
Define limit values and /or a rectangular autofocus area.
Optionally teach in the background.
Ö
Limit values and autofocus space:
see
, A
UTO
F
OCUS
L
IMITS
tab
Ö
See also overview in
.
–
or
–
Ö
M
ODE
– Differential background and tracking
Define the scanner position referred to the conveyor belt:
see
, reading space, scanner position
Limit autofocus area:
Define limit values and /or a rectangular autofocus area.
Optionally teach in the background.
Ö
Limit values and autofocus space:
see
, A
UTO
F
OCUS
L
IMITS
tab
Ö
See also overview in
.
2. Configure autofocus
Ö
A
UTOFOCUS
P
ARAMETERS
button
Ö
A
UTOFOCUS
P
ARAMETERS
tab
Ö
A
UTOFOCUS
P
REFERENCES
tab
– Default focus distance
1)
(default setting)
Ö
A
UTOFOCUS
L
IMITS
P
ARAMETERS
button
Ö
A
UTOFOCUS
LIMITATION
section
– Min. and max. value
Ö
S
CAN
ANGLE
LIMITATION
section
– Min. and max. value
Oscillating mirror:
Ö
additionally: O
SCILLATING
ANGLE
LIMITATION
section
– Min. and max. value
1) Typical for reading from above. The focus position is located slightly above the smallest object. In this way, if the CLV490 is
mounted with its reading window opposite the conveying direction, it can continuously adjust (raise) the focus position on the
front of approaching objects that are larger than the smallest object.
Table 6-6: Guide: Configuring the autofocus function (part 1)
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