YesAX V3.1.2 - Software User Manual.pdf - 第66页
6-8 Recipe Creat ion Step by Step for 2D Rec ipes After the coordinate system is adjusted, the system will move the camer a to view each part one by one. You are prompted by the Train New Part Marking dialog on every new…
Recipe Creation Step by Step for 2D Recipes 6-7
The Align CAD Coordinates dialog displays.
Move the highlighted ROI (region of interest) in the video window, on top of the corresponding
part and then click OK.
When the OK button is clicked, the software records the part position. Based on the part position
of the three parts located on the extreme corners of the board, the software compensates for any
differences in the coordinate systems between the system that generated the CAD data and the
system reading it. The factors compensated are XY scaling difference, board rotation and XY
axis skew. The Skip button on the dialog allows the user to select a different reference part. It is
recommended to select a small part, such as a chip, as a reference part because for big parts it
becomes more difficult to determine the center position. Also during this process you can use the
Shift-Ctrl and Arrow keys to move or re-size the box for more accurate alignment, if needed.
If the prompted part is not at the supposed corner of the board, the CAD data header information
may be incorrect in describing the CAD data. Pressing the Advance.. button launches the Setup
CAD Parameters dialog that allows you to adjust the coordinate system of the CAD data.
6-8 Recipe Creation Step by Step for 2D Recipes
After the coordinate system is adjusted, the system will move the camera to view each part one
by one. You are prompted by the Train New Part Marking dialog on every new part to train.
Verify and/or modify the Polarity and Center Mark checkboxes for the part’s marking if
needed. Select the correct Part Type and Package type for the part. The Package selection list
changes with the selection of Part Type. For example if Part Type resistor is selected, only the
packages for resistors will be listed. To have the software list all the available packages, select
Misc. for part type. If the correct package cannot be found, NO_PKG should be selected for
package. if you press the Skip button, the system will skip training the part and result in the part
NOT being inspected.
If the part in the CAD data is already in the part library, the Verify Part Marking dialog appears.
Recipe Creation Step by Step for 2D Recipes 6-9
The part marking verification inspects the part’s marking and if it passes, the part is placed in the
inspection list of the recipe. If the inspection fails the Verify Mark Failed dialog displays.
Train Alt Button
Use to train alternate templates
Edit Params… Button
Use to launch the Part Parameter dialog for the user to change the marking parameters, such
as lowering the pass score.
Skip Verify Button
Use to skip the verification for this part only.
Retry Button
Use to return to the Verify Part Marking dialog.
Skip All Verify Checkbox
Select to turn off part verification for all parts. This checkbox is also on the Verify Part
Marking dialog or Train New Part dialog. When marking verification is turned off, the part is
added to the inspection list without being verified.
The verification process is commonly used as “First Article Inspection” for the assembly. This
way the user can create an inspection recipe and do the first article inspection at the same time.
This process is complete when all the parts imported are verified.
The part import process can be aborted at any time by pressing the Cancel button on the Verify
Part Marking dialog, Train New Part dialog or the Stop button on the Setup CAD Parameters
dialog. The parts that are imported up to this point will remain in the part list. To resume the
import process, simply select CAD Data, Import CAD from the file menu. Since the part
information in the CAD file merges with the part information in the recipe, there is no danger of
importing the same part twice.
6.4 Step4: Fine-Tune the Inspection Parameters
After CAD import, run 3 to 5 boards to fine tune the inspection parameters. Nordson YESTECH
also recommends running a bare board test to make sure the inspection thresholds are not set too
loose.