YV180X_Ope_E.pdf - 第160页

5 -84 EPD8013110 Operation Chapter 5 5 Creating the PCB data 5 Run the VISION TEST command. Repeat this test several times. When no errors occur , the parameter settings are appropriate. Advance to the next step. If an e…

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EPD8013110

Operation

Chapter 5

Creating the PCB data

1. First select “CONVEYOR WIDTH” to adjust the conveyor width.

The conveyor width input box appears, so enter the PCB width (mm).

2. Press the emergency stop button and clamp the PCB on the conveyor

according to the selected PCB clamping method.

Reference

For details on the procedure for clamping the PCB on the conveyor, refer to “5. Clamping

the PCB” in this chapter and “8. Changing the conveyor unit setup” in Chapter 4.

4 Perform teaching for the mark.

When the cross cursor in the center of the vision monitor is aligned with

the appropriate position in the mark (see the table below), skip this

step. If not, perform teaching as follows.

1. Run the TEACH MARK command.

2. Manipulate the joystick so that the cross cursor on the vision monitor is

aligned with the appropriate position in the mark (see the table below),

then press the [ENTER] key.

Mark teaching

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Shape Type Teaching point Example

Circle

Square

Triangle

Sp. Shape

Center of mark

Corner of mark

Center of a square

edge line

Center of a round edge

Corner

TopEdge

CirEdge

:Cross cursor at center of screen

WARNING

STAY OUTSIDE THE MOVEMENT RANGE OF THE HEAD ASSEMBLY WHEN

YOU MANIPULATE THE YPU JOYSTICK.

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EPD8013110

Operation

Chapter 5

Creating the PCB data

5 Run the VISION TEST command.

Repeat this test several times. When no errors occur, the parameter settings

are appropriate. Advance to the next step. If an error occurs, adjust the

parameters with the procedure below.

1. Return to the Mark Info. screen with the EXIT command, and check that

the following parameters are set correctly.

Mark Type and MarkOutSize in the Mark Type Info. sub-

window

Shape Type and Surface Type in the Vision Info. sub-window

2. After checking the parameters, press the [F6] key to open the Adjust

Assistant screen again, then repeat Steps 4 to 5.

When no errors occur, move to the next step.

3. If an error still occurs, run the PARAM SEARCH command to find an

optimum threshold level.

4. After the optimum threshold level has been found, run “VISION TEST”

again.

When no errors occur, go to the next step.

If the optimum threshold level could not be obtained, run the CHK

THRESHOLD command.

A binary image will be displayed on the vision monitor according to

the current parameter settings as shown below. Adjust the threshold

level as suggested below, so that the mark image is clearly displayed.

Binary image (mark)

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V192

(LEVEL=150)

Binary image is on the monitor......

[INS] or [DEL] key to change the threshold.

Hit [ENTER] to finish.

Current threshold setting

State

All white

All black

Noise within

mark

Noise outside

of mark

Other than

mark in

search area

Image Countermeasure

Increase the Mark

Threshold level with the

[INS] key.

Decrease the Mark

Threshold level with the

[DEL] key.

Increase the Cut Inner

Noise level in the Adjust

Assistant.

Increase the Cut Outer

Noise level in the Vision

Info. sub-window.

Decrease the Search

Area level in the Vision

Info. sub-window.

Remarks

Adjust it till the mark is

displayed.

Adjust it till the mark is

displayed.

Refer to "Search Area"

explained previously.

Recognition time becomes

longer as the Cut Inner

Noise level is increased.

Recognition time becomes

longer as the Cut Outer

Noise level is increased.

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EPD8013110

Operation

Chapter 5

Creating the PCB data

5. Run the PARAM SEARCH command again and, if successful, next run

the VISION TEST command.

When no error occurs, advance to the next step.

If the PARAM SEARCH result is a fail, enter a larger value for the

Tolerance parameter in the Adjust Assist Items window, then run

“PARAM SEARCH” again.

6 Check that the mark can be recognized even if it has

moved.

Check that the mark can be recognized in any location within the search

area.

Run the TEACH MARK command, and manipulate the joy stick to move

the mark slightly. If no error occurs when “VISION TEST” is run again, the

setting is okay. Repeat this operation several times, and check that no error

occurs.

Final check (mark)

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Check that the mark is correctly recognized

even when slightly shifted from the center cursor

Search Are

7 Select the EXIT command.

Now you can exit the Adjust Assistant mode and return to the Mark

Info. screen.