DECAN_S1_Administrator′s_Guide(Eng_Ver1.5)_Print.pdf - 第232页

7-68 Next Generation, Multi-Functional Plac er DECAN S1 Administrator’s Guide recognized with the crosshair center . Then the cro sshair center becomes the center of the area in which the po lygon part is to be searched.…

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Part Registration

Selecting the <Use Polygon> check box will disable the <Lead Parameter &

Group> button and <MFOV Type> combo box. This enables the <Auto Teach>

button.

At this time, in the <Body X> and <Body Y> edit box of the <Size> group, set the

size of the area in which the polygon is to be searched.

The area in which the polygon is to be searched can be set up by adding the value

entered in the <Area Margin> edit box to the value set by the <Size> group.

Clicking the <Ex Param> button will display the following dialog box. The value

from 0 up to 10 can be set in the <Body Sub Sample> edit box of the <Extra

Parameter> tab dialog box.

The value set here determines the fineness when creating the outline of the part in

the SM Vision window.

If the image displayed in the SM Vision window has a lot of noise or is unclear, set

its value to the default value of ‘0’.

If the image is clear and therefore the outline of the part can be distinguished

plainly, the part outline can be created with fine detail.

However, if the outline becomes rough due to an over-increase in the value, the

part may not be recognized correctly.

1- Finest Outline

10 –Roughest Outline

1: Polygon Toolbar

 Polygon Toolbar button

When recognizing a part, the part recognition center can be designated by

dragging the crosshair with the mouse.

At this time, the center of the camera becomes the part recognition center by

default. Match the recognition center (origin point) of the polygon part to be

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Next Generation, Multi-Functional Placer DECAN S1 Administrator’s Guide

recognized with the crosshair center. Then the crosshair center becomes the

center of the area in which the polygon part is to be searched.

 <Direction Mark> button

Sets the part placement direction.

 <Direction Mark Parameter> group

 <Type> combo box

None: There is no Direction Mark.

Triangle: Selected when the direction mark is a triangle.

Rectangle: Selected when the direction mark is a rectangle.

Circle: Selected when the direction mark is a circle.

H MARK: Selected when the direction mark is “H” mark.

 <Threshold> edit box

The image viewed through the SM Vision window is composed of each

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Part Registration

pixel.Each pixel has a unique value between 0 and 255 according to the

seen degree of brightness. Here, ‘Threshold Value’ indicates the border

value deciding whether each pixel should be recognized in white or black.

That is, setup the limitation for deciding if the image pixel should be black

or white when checking a bad mark.

The value can be adjusted by entering a numerical value in the edit box.

Check the <Auto> check box to automatically set up the <Threshold>

value.

 <Size X> edit box

Displays the area size in the X direction.

 <Size Y> edit box

Displays the area size in the Y direction.

 <Pos X> edit box

Displays the X coordinate of the area center..

 <Pos Y> edit box

Displays the Y coordinate of the area center.

 <Rotation> combo box

Selects the rotating angle of the direction mark. The rotation angle can be

selected according to the direction mark type as follows:

Triangle:

Circle: The angle cannot be selected.

H Mark:

 <Polarity> combo box

Select the color of fiducial mark. Available colors are as follows.

- White: the mark looks lighter than the surroundings.

- Black: the mark looks darker than the surroundings.

 <4 Way Search> check box

This function ensures that even when IC parts are supplied in an irregular

direction, they are mounted normally. When the <4 Way Search> check box is

selected, the head adsorbs a part, is rotated by 4 different angles (0/90/180/270

degrees), and then recognizes the direction mark of the part. At this time, the

recognized angle can be reflected to the mounting angle, and parts can be

mounted properly and according to the direction of each part.

The function can only be used for IC parts whose shape is circular but whose