Hanwha SM481 PLUS Series Administrator’s Guide Eng.pdf.pdf - 第127页
6-17 Board Definition 6.3. Fiducial Mark Setup If there is a fiducial mark on the PCB, s e t the position of the fiducial m ark and mark data. The fiducial mark is the mark on the PCB used for r ecognition of the PCB dis…
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Fast Flexible Placer SM481(L) PLUS Administrator’s Guide
<Cancel> button
Closes without saving the edited data.
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Board Definition
6.3. Fiducial Mark Setup
If there is a fiducial mark on the PCB, set the position of the fiducial mark and mark data.
The fiducial mark is the mark on the PCB used for recognition of the PCB distortion and
its correction. In the case of the PCB without fiducial mark, the placement accuracy is
relatively low.
When this <Fiducial Mark…> button is clicked on, the following dialog box is displayed.
Figure6.4 “Fiducial Position & Mark” dialog box
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Fast Flexible Placer SM481(L) PLUS Administrator’s Guide
<Block Select> combo box
For a Multi PCB
The model selected from the “Board Definition” dialog box is selected
automatically and the corresponding Combo Box is disabled.
For a Block PCB
Select the model for which setup will be performed and set other items.
<1. Position Type> combo box
One, two or three fiducial marks can be selected for use.
When one fiducial mark is selected, the X and Y distortion can be corrected. However,
it is difficult to correct the theta angle.
That is, it is used if the external machined section of the PCB is very precise or when
there is only one fiducial mark inevitably. Generally, 1 point fiducial is not used.
In the case of 2 fiducial marks, the X, Y and theta of the PCB can be corrected. This is
the most frequently used method.
In the case of 3 fiducial marks, they are used when the deviation of the score value is
great because the surface of the fiducial marks is unstable. If 3 fiducial marks are used,
the machine can calculate the horizontal and longitudinal position more accurately.
Here, Select the number of fiducial marks. Available numbers are as follows.
None: Fiducial Mark.
1 Panel: In the case of one point, the distortion of the X or Y coordinate can
be compensated.
2 Panel: 2 fiducial marks for PCB correction.
3 Panel: In the case of three points, only two points that obtained higher