2OM-1011-002.pdf - 第39页

0305-001 Tg0858-PM-PM 2-20 2.3 OPERA TION DA T A Display [2-Point Recognition] Fig. 2B36 • Specify fiducial mark positions so that one fiducial mark is kept as diagonally away from the other as possible. Note: A void fid…

0305-001 Tg0858-PM-PM

[BEFORE PU]

The P.E.C. recognition function is performed before a com-

ponent is picked up.

This parameter should be selected when the P.E.C. recog-

nition function cannot be performed with a component be-

ing picked up.

P.E.C. RECOGNITION MODE GLOBAL

Set one of the following options to set the number of recogni-

tion points for the P.E.C. global recognition function.

“OFF”

“1PT.”

“2PT.”

“3PT.”

[1-Point Recognition]

2.3 OPERATION DATA Display

Fig. 2B35

• Only the X and Y elements are corrected. The θ element

(expansion, etc.) is not corrected.

2-19

Fig. 2B34

Reference

•

When “AFTER PU” is set in the data box, a component is

picked up and the component recognition is performed on

the component while the P.C.B. is being transferred to the

P.C.B. positioning section.

Since the component is already picked up, it can be placed

soon after the component and P.E.C. recognition functions

are performed. Because the loss time (waiting time)

decreases, there is an effect to shorten the time to finish a

P.C.B.

0305-001 Tg0858-PM-PM2-20

2.3 OPERATION DATA Display

[2-Point Recognition]

Fig. 2B36

• Specify fiducial mark positions so that one fiducial mark is

kept as diagonally away from the other as possible.

Note: Avoid fiducial mark positions where the X and Y ele-

ments are the same. See Fig. 2B37 below.

Fig. 2B37

[3-Point Recognition]

Fig. 2B38

• Specify fiducial mark positions so that the triangle area

formed by connecting the three points (three fiducial marks)

becomes as large as possible.

Note: When any two of the three fiducial marks are desig-

nated to be positioned as close as possible to each other,

the results of the correction will be almost the same as

“2-Point Recognition” because the bend, expansion,

etc., of P.C.B. are detected as even occupants of the X

and Y elements.

In other words, the bend, expansion, etc., of P.C.B. oc-

cupying the X and Y elements unevenly will cause

wrong correction result.

0305-001 Tg0858-PM-PM

Fig. 2B40

Note: When the global recognition is used together with the

image recognition, both recognizing actions take place

but the placement coordinates are corrected according

to the result of the image recognition.

P.E.C. RECOGNITION MODE LOCAL

Set whether or not the fiduciary mark on each component place-

ment point should be recognized.

“OFF”

“ON”

1PT.: Put a fiducial mark on the center of component place-

ment point or a desired point around the center.

P.E.C. RECOGNITION MODE IMAGE

Set one of the following options to determine whether or not

the P.E.C. image recognition function should be performed.

“OFF”

“ON”

Note: The coordinates and mark data of a fiducial mark are

designated in the placement data (V).

2.3 OPERATION DATA Display

2-21

Fig. 2B42

Fig. 2B39

Fig. 2B41