KE2040 Instruction Manual_ver1.30.pdf - 第384页

5 − 42 ⑱ Exp (Expansion) Set this item f or an extended- lead connector , or unidirectional connect or . - W hen you click this item with the rig ht butt on, the select ion pop-up menu appears on the screen. ▼ W hen you …

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2) Number of leads to be recognized

Enter the number of leads at each corner to be recognized. See the

conditions for entering the number of leads shown in Table 5.2.3.16 below.

Table 5.2.3.16.1 Range of the number of leads

Range of the number of leads

Component type Recognition pattern

Upper

left

corner

Upper

right

corner

Lower

left

corner

Lower

right

corner

Unidirectional

connector

All

Only the both ends lead

Both ends lead exclusion

****

1-3

0-3

****

1-3

0-3

****

Bidirectional

connector

Z-shaped lead

connector

All

Only the both ends lead

Both ends lead exclusion

****

1-3

0-3

****

1-3

0-3

****

1-3

0-3

****

1-3

0-3

⑰ Corr.(Brightness correction)

Set the threshold to be applied when the machine recognizes an

outline-recognized component.

- “0” is set as the initial value. If the machine cannot recognize such a

component, adjust the initial value between – 127 and + 127. When a

component looks darker, set the smaller number. When you can see even

the background of a component, increase the value.

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⑱ Exp (Expansion)

Set this item for an extended-lead connector, or unidirectional connector.

- When you click this item with the right button, the selection pop-up menu

appears on the screen.

▼ When you click the [Edit] command, the following screen appears.

Profile Set the shape of a lead.

- Flat lead

- Gullwing lead

By default, “Gullwing lead” is selected.

Recog offset

(Recognition

offset)

Displays the recognition center offset which was set on

the “Expansion” window invoked from the Component

data screen. You cannot edit any of these values on

this screen. This item shows the coordinates of the

lead center A with being viewed from the component

pick-up position C.

LREP.

(Rightmost

lead position)

Enter the coordinates of the rightmost lead position:

coordinates of the rightmost lead center B with being

viewed from the lead center A. The default value is

determined based on the lead pitch and number of

leads.

♦ When you finish entering all of data, click the <OK> button. The “Vision

data” screen reappears.

Notes:

①

The machine cannot recognize images of an extended-lead connector with

dividing it.

②

Note that only one point, the rightmost lead position is set on this screen, so

the recognition precision is insufficient.

Ｃ

ＣＣ

Ｃ

Ａ

ＡＡ

Ａ

Ｂ

ＢＢ

Ｂ

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5.2.4 General-purpose vision components

5.2.4.1 Overview of a general-purpose vision component

The following types of components are handled as a general-purpose vision

component (“GNRL. vision” displayed as the component type):

- Components having multi-pitch leads, components having various sized leads,

and components having leads at not-regulated positions (these components are

called “multi-lead” components; see Figure -1.)

- Area array components having two or more arrays (called “complex array

components”; see Figure -2.)

- Components having balls/lands on not-regulated positions (called “random

component”)

- Components having a side or corner (outline-recognized components)

• The components above are classified into the following sub-component types:

Multi-lead component: Lead component group

Complex array component and random component: Ball component

group

Outline-recognized component: Outline-recognized component group

• The data format definition of each type of components is as follows:

Multi-lead component, complex array component and outline-recognized

component → Element group/Element format

Random component → Extended array data format

* The “Element group/Element format” specifies an element to be recognized such

as a lead and ball, defines the group of the same elements (element group): the

pitch and/or quantity is the same, and specifies the direction and position of the

group.

The “Extended array data format” defines the element (ball and land) arrangement

with X and Y coordinates.

Figure -1 Figure -2

Ball component group

(Complex array component)

Lead component group (Multi-lead component)