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Part 1 B asic O peration Chapter 4 Cr eating a Produc tion Progra m 4- 79 (7) Inspection 2 This tab she et allows you to set the f ollowing item s: “Component ver ification” and “Dimensio n check.” 1) Component verif ica…

Part 1 Basic Operation Chapter 4 Creating a Production Program

4-78

(6) Inspection 1

This tab sheet allows you to set the following items: “Tombstone,” “Component Angle” and “Pick

Position Detection.”

1) Tombstone

Specify whether to check that a component stands on its side (“Tombstone” error).

Normally, we recommend that you select the “Yes” radio button for a 3216 chip component

or smaller ones. Therefore, when you select a “Chip” as the “Component type,” the system

automatically selects the “Yes” radio button.

“Tolerance”: The system automatically enters a value calculated from the component

height you entered to this field.

2) Component Angle

This specifies whether to perform or not SOT component direction inspection defined by

general-purpose vision component. The direction inspection of the first component before

production and after “no components” can be performed.

Perform this check mainly to check that a correct component is not set.

Only for the general-purpose vision components whose number of element groups of lead

component is 3 or less or whose number of outer/inner lead elements is 2 or more, this

function can be selected.

3) Pick Position Detection

This function detects whether the center of a component is shifted by a value more than that

set in the “Tolerance” field when viewed from the center of the nozzle.

This function is available only if the packaging style is a tape feeder. Otherwise, this

function is disabled. Select the “Yes” radio button for the desired component, and enter the

value in the “Tolerance” field as the judgment value.

The range of a value you can enter in this field is from 0 to the length of a component (or

width of a component if the component supply angle is 90º or 270º).

When you select the “Yes” radio button, the default value to be set in the “Tolerance” field is

calculated with the expression shown below:

Length (or width) of a component ÷ 2 × (set value/100)

The “set value” is set in the “Environment setting” screen of the Program Editor. The

default is 50 (%).

Part 1 Basic Operation Chapter 4 Creating a Production Program

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(7) Inspection 2

This tab sheet allows you to set the following items: “Component verification” and “Dimension

check.”

1) Component verification (option)

This item is mainly used to check a component setting error. Select whether to verify a

component or not with the corresponding button, <Yes> or <No>.

When you select the <Resistor> button or the <Capacitor> button, enter the threshold value,

the unit and the lower/upper limit of the allowable error. Select the unit from the drop-down

list.

KΩ

μF

MΩ

When you select the <Polarity> button, you can select the direction from the drop-down list.

Right

Top

Left

Bottom

2) Dimension check

Specify whether to perform a dimension check of a component or not with the corresponding

button, <Yes> or <No>.

Specify the length and the width of a component in the “Standard size” fields. Specify the

allowable maximum difference and the minimum difference between the values set in the

“Standard size” field and the value measured actually in the “Width Judge” fields and the

“Length Judge” fields in % respectively.

Main unit side

Set the direction of the positive

electrode viewed from the

component supply direction

(packaging style)

Tape feeder

Part 1 Basic Operation Chapter 4 Creating a Production Program

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(8) Inspection 3

This tab sheet allows you to set the menu item “Measure PWB Surface Height” and “Height check

after placing.”

The system measures the height of the surface of a board at the component placement position to

correct the Z coordinate of the component placement position.

The measurement position is in the center (- point) of the component placement position.

1) Measurement

Specify whether to measure the height of the surface of a board on which a component is to

be placed with the corresponding button, <Yes> or <No>.

2) Threshold

Enter the value for determining whether the board warps or not based on the measurement

result.

3) Offset

Enter the offset from the component placement position to be measured.

When the measured value is within the range of a negative value set in the “Threshold” field

to a value set in the “Threshold” field, the system decides that it can place the component on

a board.