RS-1_instruction manual.pdf - 第640页

Pa rt 2 Detailed Des cription o f Each Function Chapter 6 G eneral - Purpose Visio n Component 6-9 • Ball /Lan d W hen yo u sel ec t “ Ball ” or “ Land ” in the “ Ty p e ” field, these fields appear on the screen. Select…

Part 2 Detailed Description of Each Function Chapter 6 General-Purpose Vision Component

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 Parameter 1 and Parameter 2

You can set an offset amount in the lead length direction of the detection window using

parameter 1 when performing the DOG filter recognition. (The unit is μm.)

The parameter 2 is a parameter for expansion in the future, and not be used now.

8) Missing Elements

If an element group has a missing element, specify the missing element information from a

missing element located nearest the first element sequentially. You can specify up to four

missing elements per column or row.

9) Element

Enter the information on an element.

• Type

Select an element type.

The contents of the displayed list vary depending on your entry at 5) (the right screen

appears when you select the “1D” radio button).

- Outer Lead : Gull-wing type lead (such as a QFP)

- Inner Lead : J-lead (such as a QFJ)

- Column : a ball or land whose height can be recognized enough.

- Mark : a component that does not require any inspection because it is not an

electrode such as a mark.

- Side : a component whose element is irregular-shaped, so the system can

recognize its side only.

- Corner : a component whose element is irregular-shaped, so the system can

recognize its corner only.

See the next page for how to specify the “Type.”

• Reference pos. (position)

Specify the first element reference position.

We recommend that you specify the “center of the bottom side (center of the lead tip)”

for a lead component, or “the center of an element (center of a ball)” for a ball

component.

• Polarity

Specify the brightness of an element.

If an element looks brighter than its background, select “Bright.”

• Offset

Specify this field if the “first element position” of an element group should be shifted

further than that already specified.

• Element size

Enter the length and width of an element.

Part 2 Detailed Description of Each Function Chapter 6 General-Purpose Vision Component

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• Ball/Land

When you select “Ball” or “Land” in the “Type” field, these fields appear on the screen.

Select the shape of a ball or land. (However, the system does not distinguish the shape

currently.)

Specify whether to check the shape or not, and enter the judging

level.

− Diameter:

Specify whether to check the diameter. When checked, the

system checks each ball based on the average diameter of all

checked balls.

− Area: Specify whether to check the area.

− Ball exist?:

Specify whether to check that there is a ball or not. The initial

value “30 %” indicates that the system can detect the

condition: 20 % of a ball is cut away.

− Average diameter:

Specify whether to check the diameter with comparing the

average diameter of checked balls and the input diameter

• Outer Lead/Inner Lead

When you select “Outer Lead” or “Inner Lead” in the “Type” field, these fields appear on the

screen.

− Profile: Specify the lead type.

− Cut shape:

Specify the shape of the cut section if the tip of a lead is cut:

− Cut width, Cut length:

When you select “U-shape cut,” “Left bottom cut” or “Right

bottom cut,” enter these fields.

− Coating:

Specify the coating type of a lead. Not used at the present.

− Lead size:

For a gull-wing lead, enter the width and length of the tip of a lead that is in contact with a

board.

• Column

This screen appears when you select “Column” in the “Type” field. Not used currently.

高さ

Height

Flat

Length

U-shape

cut

Width

Left bottom

cut

Right bottom

cut

Width

Length

Width

Lead

Board

Part 2 Detailed Description of Each Function Chapter 6 General-Purpose Vision Component

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◎ When the radio button “Point” is selected on the

“Element Group” dialog box, the menu items

shown in the right figure can be selected from

the “Type” list.

• Mark

When you select “Mark” in the “Type” field, this screen

appears.

- Matching:

Specify the tolerant range of the similarity.

The higher value you specify, the more strictly the

system judges the similarity.

(The initial value is set to “600.”)

• Side

For a component whose element is irregular-shaped (other than a circle or square),

you can cause the system to recognize a component with its side.

The bottom side is the reference side. When you

use the right side, enter “90°” in the “Theta” field of

the “Offset” menu item displayed on the “First

element position” column. In the same manner,

enter “180°” for the top side or “270°” for the left side.

• Corner

When you select “Corner” in the “Type” field, this screen appears.

- Radius:

Enter the radius of the corner section.

For a right-angled corner, enter “0.”

The reference corner is the bottom left corner when the

component supply angle is 0°.

If you want to use the bottom right corner, specify “90°”

in the “Theta” field of the “Offset” menu item displayed

on the “First element position” column. In the same

manner, enter “180°” for the top right corner or “270°”

for the left top corner.

• User definition

This column is displayed when “User definition” is selected as the “Type.”

• Allowable angle value:

Unless “Direction” is specified in the “Operation mode”

field, enter the allowable angle deviation generated

during recognition here. The entered value is applied in

both directions: positive and negative directions.

(“10 degrees” is entered as the initial value.)

The operation mode can be set when you create a

user-defined element, and you cannot change it on this

screen.

Reference side