Xg系列调整手册.pdf - 第45页
3 Basic adjustments 3- 23 1. Camer a parameter adjustments 8 Press the [Find Best] button to find the optimum threshold level. [Find Best] button [Find Best] button 27075-X9-00 Display after finding optim um threshold le…
3
Basic adjustments
3-22
1. Camera parameter adjustments
7
Perform teaching for the mark on the glass PCB.
1.Cancel emergency stop and press the [Move Head] button in the Mark Adjust
window to open the Move Head window.
2.Use the arrow buttons to move the moving camera so that the mark on the glass
PCB is displayed near the center of the vision monitor. Then press the [OK] button
to close the Move Head window.
[Move Head] button
[Move Head] button
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Teaching window
Mark
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n
NOTE
The mark should be positioned near the center of the vision monitor.
3
Basic adjustments
3-23
1. Camera parameter adjustments
8
Press the [Find Best] button to find the optimum threshold level.
[Find Best] button
[Find Best] button
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Display after finding optimum threshold level
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NOTE
It is okay if the mark is not exactly in the center of the vision monitor.
9
Press the [OK] button to close the Mark Adjust window.
3
Basic adjustments
3-24
1. Camera parameter adjustments
1.2.2 Calibrating the moving camera scale
1
Press the [Utilities] button to start the adjustment utility.
n
NOTE
For how to start the adjustment utility, see section 2.4 in Chapter 2.
2
Press the [Moving Camera] button to open the moving camera
adjustment dialog box.
Moving camera adjustment dialog box
Select the "Scale" option button
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3
Select the "Scale" option button under "Adjust Item".
n
NOTE
Also check that other items in the above dialog box are set as follows.
Mark No. : 1
Distance : 1.50
Speed : 60
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NOTE
You do not have to execute a vision test with the [Recognition Test] button since the optimum threshold level has
already been obtained in the previous section.
4
Press the [Execute] button to start calibration.
The moving camera moves along the X and Y axes and the camera scale is automati-
cally calibrated based on the amount of movement on the vision monitor and the
results are then displayed on the screen.
Progress bar during adjustment
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5
Save the result of the camera scale calibration.
When the dialog box appears asking whether to save the result, press the [Yes] button
to save it.
Save confirmation dialog box
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Reference
Typical moving camera scale: 10.3±0.3 µ m/pixel
Typical camera installation angle: 0±0.5°