BEA--220265-EN-04
B Page 23
CCD array camera OptoLine OL 80..
7.9 Width measuring function
calibration
If the web width is measured by two cameras, the distance
between these two must be calibrated once each camera has
been calibrated individually.
Calibration can only be performed on command station
DO 002.
A template is required to calibrate the width measuring function. It is
inserted in the measuring range of both cameras in place of the web.
See the illustration on left. The template must be on the same level
that the web, subsequently, will run on.
➜
Insert the template in both camera visual ranges.
➜
Call up the setup editor.
➜
Enter the device number of operator panel RT 4051 in para -
meter 0. This operator panel is a part of remote display DO 002.,
the address is specified in the block diagram on systems config-
ured by E+L.
➜
Enter the operator panel RT 4051 group number in parameter 1.
➜
Enter value 2 for width measuring in parameter 6 (center between
two contrasting edges).
➜
Measure the width of the template in millimeters. Deduct the value
from the width indicated on remote display DO 002. .
Example: width
displayed
150
measured template width
100
offset
-50
➜
Enter the offset in parameter 9
(e.g. -50)
.
➜
Value "1" for the web width must be set in parameter 10. If this is
not the case, enter "1".
➜
Enter a 1 (reset) in parameter 3, then change parameters to initi-
ate a reset.
The width measuring function is now ready for operation.
7.10.1 Camera mounting position
On a few applications with camera OL 80.., e.g. width measurements
or laminating processes, the camera mounting position is required.
The mounting position is the distance from the camera center to a
fixed reference point in a machine, e.g. the machine center.
The mounting position may be transmitted by the camera, an E+L
interface DI .. or an E+L module DM .. . If the camera is to send the
mounting position, proceed as follows.
➜
Check the mounting position in parameter 23. With template cali-
bration, the mounting position is calculated during the calibration
process and written in parameter 23. With standard calibration,
the distance must be entered manually in parameter 23.
7.10 Perform application-
dependent settings
0.0.0
.1.7.
0
.1.0.0.0.
Calibrate distance of cameras to one
another
