Nordson_EFD_OptiSure_Operating_Manual - 第47页

OptiSure Automated Optical Inspection 47 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide. T o Use Arr ow Check Point in a Program (Mea. P…

OptiSure Automated Optical Inspection

46 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.

# Click Step Reference Image

• Select LIGHT TO DARK.

• Adjust PIXEL AVG to make the mark

image easier for the system to ﬁnd.

• Select the POINT radio button.

• For MAX, select the checkbox and

enter the maximum allowable width of

the line. The displayed AVG (average)

value is equal to the line width.

• For MIN, select the checkbox and

enter the minimum allowable width of

the line.

14 • Adjust THRESHOLD until the small red

circle of the middle arrow (item 7) is

positioned on the bottom edge of the

line.

• Close the dialog box to save the

settings.

The saved mark image is now ready to be speciﬁed in an Arrow Check

Point command to cause the system to check the width of a dispensed line

anywhere on the line. In this example, the checked width must be within

1.35–1.45 mm (as deﬁned in step 13). If the width is greater or lower, a

warning box appears.

Continue to “To Use Arrow Check Point in a Program (Mea. Point to Line

Example)” on page47 to use the mark image.

NOTE: The system can return to the middle of a dispensed line only if the

middle of the line is within the range speciﬁed in step 3 on page43.

Using the Arrow Types (continued)

Mea. Point To Line Example (continued)

To Create a Mark Image for the Desired Line Width (continued)

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To Use Arrow Check Point in a Program (Mea. Point to Line Example)

# Click Step Reference Image

> ARROW CHECK

POINT >

• Click the PROGRAM tab.

• Insert commands to dispense a

line over the line on the workpiece

template.

NOTE: The complete example

program is provided below.

• Jog the camera to a location on the

line where you want the system to

check the width of a section.

• Insert an ARROW CHECK POINT

command and enter parameters as

follows:

- Enter the number (No.) of the mark

image created for the line in the

previous procedure.

- Select the action you want the

system to take if the measured line

section is above the Max value

or below the Min value speciﬁed

for the mark image (step 13 on

page46). Refer to “Arrow Check

Point” on page71 for details.

• Click OK.

When the system executes the Arrow Check Point command and

ﬁnds an unacceptable line section, it takes the action speciﬁed by the

Stop, Skip, Pause, Ask parameter. Refer to “Arrow Check Point” on

page71 for details.

Mea. Point To Line Example (continued)

Using the Arrow Types (continued)

Example program that contains an Arrow Check Point command for verifying line width

OptiSure Automated Optical Inspection

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Mea. Width Example for Verifying Line Width

Mea. Width (Measure Width) is an OptiSureAOI feature that can be used in tandem with the Arrow Check Point or

Arrow Check Line commands to measure the width of a predeﬁned line, compare that measurement to subsequent

dispenses (for either one section of the line or the complete line), and then, depending on the user-speciﬁed

parameters, determine if the dispense is acceptable. If the dispense does not meet the speciﬁed criteria, the system

takes the action speciﬁed in the Arrow Check Point or Arrow Check Line command.

PREREQUISITES

 To learn how to use this feature, draw a line on a sheet of white paper and use it as a workpiece template.

To Create a Mark Image for the Desired Line Dispense

# Click Step Reference Image

• Jog the camera to a location near the

beginning of the line.

• Click SET MARK, then drag to position

the red box over the line.

• Click a socket in the Mark Library to

save the mark, then click TEMPLATE

when the Template Match window

appears.

The system saves the image in the

Mark Library.

• Click the ARROW icon.

• In the Primary View screen, right-click

and select ADD NEW ARROW.

The system adds an arrow to the

screen.

Continued on next page

Using the Arrow Types (continued)