YSI_Prog_E.pdf - 第90页

2-19 2 Creating inspection pr ograms X, Y Enter the fiducial mark coordinates. If "2 Points" is selected for the correction method, enter coordinates for X1, Y1, X2, and Y2. If "3 Points" is selecte d…

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2.4.2 Fiducial mark settings
1
Press the [Data Edit] button and open the "Fiducial" tab.
2
Set fiducial marks
Open the tab for which fiducials are to be set, and set the fiducial function to "Execute".
Fiducial mark settings
Select a tab.
Set to "Execute".
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"Board" tab (board fiducials)
Performs positional correction in board units.
"Block" tab (block fiducials)
Performs positional correction in units of individual boards within multi-board panels.
"Local" tab (local fiducials)
Performs positional correction of arbitrary steps such as for each parts and so on.
3
Set the mark list.
Mark list settings
[Teach] button
Correction method XY coordinates, mark Nos.
[Trace] button
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Correction
Select from the drop-down list.
Do not correct:
Fiducial positional correction is not performed.
1 Point:
Performs positional correction with one fiducial mark point. Board X and Y direction displacements
are corrected.
2 Points:
Performs positional correction with two fiducial mark points. Board X and Y direction displacements
and tilt are corrected.
3 Points:
Performs positional correction with three fiducial mark points. Board X and Y direction displacements
and tilt are corrected. Used for boards of material (paper phenol, paper) easily subject to expansion
and contraction or warp such as large boards or flexible boards.
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Creating inspection programs
X, Y
Enter the fiducial mark coordinates. If "2 Points" is selected for the correction method, enter coordinates
for X1, Y1, X2, and Y2. If "3 Points" is selected for the correction method, enter coordinates for X1, Y1, X2,
Y2, X3, and Y3.
• Ifcoordinateshavealreadybeenenteredinsuchcasesaswithprogramsconvertedfrommount
data, use the coordinates as they are. (Recommended)
• Iffiducialmarkcoordinatesareunknown,coordinatescanbeenteredbyteaching.Afterclicking
the fiducial mark on the board image, click the center of the fiducial mark in the field-of-view image
in the lower left of the screen. After setting the mark parameters, press the [Teach] button when the
test result is "OK". The recognized center coordinates are entered.
Mark
Enter the mark No. This number corresponds to the number in the mark data list.
If "2 Points" is selected for the correction method, enter a number for Mark 1 and Mark 2.
If "3 Points" is selected, enter a number for Mark 1, Mark 2, and Mark 3.
n
NOTE
• Ifsettingblockducials,settheducialmarkinthelineforeachblockNo.
• Ifsettinglocalducials,settherespectivelocalducialmarks.
Set the mark list number for the "Local Fid. No." optional parameter in the "Step" screen for the relevant step.
TIP
If fiducial marks are unclear, use the U, H, M, or L lighting buttons to change the lighting so that the mark becomes
clearer.
4
Move the camera to the fiducial mark position.
Select a mark from the mark list and press the [Trace] button. The camera moves to the fiducial mark
position.
5
Set the mark data list.
Set for the mark Nos. set in marks 1, 2, and 3 in the mark list.
Mark data list settings
Select fiducial.
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No.
These numbers correspond to the mark Nos. set in marks 1, 2, and 3 in the mark list.
Mark Name
Enter an easily distinguishable name up to nineteen single-byte alphanumeric characters for each mark.
Spaces cannot be entered.
Mark Type
Select "Fiducial" from the drop-down list.
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6
Set the basic parameters.
Refer to section 2.4.1, "Basic parameters", on the previous page, and set the following parameters.
Basic parameter settings
[Light List] button
[Measure] button
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A. Algorithm Type
Set to "Form".
H. Brightness Gain, I. Brightness Offset
Set so that the marks on the board are clearly visible.
M. Shape Type
Select from the drop-down list based on the mark being used.
N. Mark Size (mm)
Enter the mark outline dimensions. (If the outline dimensions are unknown, this procedure is dealt with later at Steps 9
and 10, and therefore there is no need to enter dimensions here.)
R. Circularity
Enter the mark circularity. (If the circularity is unknown, this procedure is dealt with later at Steps 9 and 10, and therefore
there is no need to enter a value here.)
T. Tolerance (%)
Set to 20%.
7
Press the [Light List] button and select a clear image.
By pressing the [Light List] button, a list of images appears. Select an image in which the mark appears
clearly from the image list, and press the [Set] button. When setting is complete, the display returns to
the "Fiducial" screen, and the "D. Light Type" is set.
TIP
If unable to see the fiducial mark clearly with the available lighting in the "Image List", "CUSTOM" lighting can be
selected. For details on the setting method, see 2.4.2, "Setting fiducial mark CUSTOM lighting", in the next section.
8
Set the threshold values.
After pressing the [Detected] button, adjust with the threshold slide bar so that only the mark appears
red. The "K. Thresh Lower Limit" and "L. Thresh Upper Limit" values are set.
9
Press the [Measure] button.
Press the [Yes] button at the auto measurement confirmation message that appears.