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1.2.5 Screen Recognition (1) Scr . Recog. Function It can be selected whether or not the screen recognition function should be used. 2PT . : The machine performs the two-point recognition. OFF : The machine does not perf…

(5) Recog. Adjust Correct

It can be selected whether or not the recognition adjustment point

(the center point to correct positional deviation between the P.C.B.

and the screen frame) should be specified to correct the align-

ment of the P.C.B. with the screen.

ON : The specified parameters in the "Recog. Adjust Point X"

and "Recog. Adjust Point Y" text boxes become the recog-

nition adjustment point.

OFF : The P.C.B. center is automatically specified as the recog-

nition adjustment point.

(6) Recog. Adjust Point X (horizontal) and Y (vertical)

Set coordinates as the recognition adjustment point to correct the

alignment of the P.C.B. with the screen.

Unit: mm

The specified parameters become valid only when "ON" is set in

the "Recog. Adjust Correct" text box.

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1.2 Operation Data

000.00

X (Horizontal)

Y (Vertical)

Fig.3B35

Recog. Adjust Correct

OFF

Fig.3B34

1.2.5 Screen Recognition

(1) Scr. Recog. Function

It can be selected whether or not the screen recognition function

should be used.

2PT. : The machine performs the two-point recognition.

OFF : The machine does not perform the screen recognition.

One of the options ("OFF", "1PT.", "2PT.", and "3PT.") can be se-

lected. However, the machine perform the recognition only when

"2PT." is selected.

(2) Center Recognition

It can be selected whether or not the center recognition should be

performed.

ON : The machine performs the center recognition.

OFF : The machine does not perform the center recognition.

Mark Y is recognized once and the camera is moved to the posi-

tion where the recognized fiducial mark is located at the center of

the visual field. After that, the fiducial mark is re-recognized.

The positional accuracy is improved because the mark is recog-

nized at the center of the visual field (the spot of the lens with less

distortion).

(3) Fiducial Mark #1

X (horizontal) and Y (vertical)

Set the coordinates of the first fiducial mark.

Unit: mm

Code

Set the code No. of the first fiducial mark for screen recognition.

(4) Fiducial Mark #2

X (horizontal) and Y (vertical)

Set the coordinates of the second fiducial mark.

Unit: mm

Code

Set the code No. of the second fiducial mark for screen recogni-

tion.

Scr. Recog. Function

2PT.

Fig.3B36

Center Recognition

OFF

Fig.3B37

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1.2 Operation Data

Fig.3B38

X (Horizontal)

Y (Vertical)

000.000

Code

X (Horizontal)

Y (Vertical)

000.000

Code

Fig.3B39

1.2.6 Mark Data

Ther fiducial mark data can be edited.

(1) Code

The mark codes correspond to the code Nos. of the fiducial marks

used in the P.E.C. and screen recognition functions.

10 types of mark codes can be registered for each pattern pro-

gram.

(2) Figure

The following options can be selected as shapes of fiducial marks.

Mark Types Table 3B1

CODE

Fig.3B40

FIGURE

Circle

Fig.3B41

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1.2 Operation Data