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SIPLACE 80S/F/G User’s Manual 7 Vision Systems Edition 07/97 from S oftware Version SR.010.xx 7.5 Teaching the Fiducial Line engi neer 7 - 49 ● Search area parame ters are – wid th – hei ght ● Parameter s of color gradua…

7 Vision Systems SIPLACE 80S/F/G User’s Manual

7.5 Teaching the Fiducial Edition 07/97 from Software Version SR.010.xx

7 - 48 Line engineer

7.5.4 Menu “Edit fiducial”

NOTE

The menu “Edit fiducial” is only activated if

— you have already entered a fiducial number and

— a definition already exists for the fiducial selected.

If this is not so, a message text is displayed which asks you to enter a fiducial number. If the above conditions

have been fulfilled, the menu is displayed.

In this menu you can implement

–

parameter modifications to the fiducial structure field (template)

–

parameter modifications to the search area

–

parameter modifications to the color graduations,

–

and teaching using default values.

Fig. 7.5.15

●

Fiducial structure field parameters are

–

width

–

height

–

camera resolution

Error

State

Action

Change template with high resolution

Maschinenoptionen Single functions

Softwareoptionen

BE - Zuführung

SI80 V 10.x

Vision system

Version: 2133

Choose gantry

Teach fiducial

Marke ändern

Display errors

PCB to output conveyor

Marke testen

x/y - Achsen verfahren

LP ins Mittenband

Marke zentrieren

Marke neu

Marke ändern

Color graduation

Standard values

Change search area

Template medium res.

Template low res.

Template high res.

Teach fiducial

SIPLACE 80S/F/G User’s Manual 7 Vision Systems

Edition 07/97 from Software Version SR.010.xx 7.5 Teaching the Fiducial

Line engineer 7 - 49

●

Search area parameters are

–

width

–

height

●

Parameters of color graduation (5 Sections)

–

10 parameter “IN” values

–

10 parameter “OUT” values

The parameters are stored in a list in the station computer. This list is initialized with default and current values

when the option “Enter fiducial number” is called.

If you modify a parameter, a teach command is generated in the machine controller (MC).

Only that parameter block will be added to the general parameters in the teach command which was modified.

For this reason four different teach commands are produced by the machine controller:

–

teach the template window.

–

teach the search area.

–

teach the color graduation and template window.

NOTE

When the color graduation is modified the fiducial is taught at the same time.

–

teach using default values

7.5.4.1 Options “Template high, medium and low resolution”

If you have selected one of these options,

–

the menu will disappear.

–

the video image will be displayed with the fiducial and template window.

–

the header and footer lines will be displayed with commentary, measurement result, keyboard assignment

and command sequences.

7 Vision Systems SIPLACE 80S/F/G User’s Manual

7.5 Teaching the Fiducial Edition 07/97 from Software Version SR.010.xx

7 - 50 Line engineer

Fig. 7.5.16

●

With the arrow keys you can vary the position of the camera. The increment can be specified by entering

the numbers 1 ... 6.

●

With the “>” and “<” signs you can shift the template window limits and teach simultaneously. Here you can

use the space bar to switch from the horizontal to the vertical direction. The field increments can be

changed from 1 pixel to 10 pixels and vice versa using the “TAB” key.

●

With “RETURN” the teach process is initiated.

The unique value is displayed on the screen as the measurement result. This can vary between

–

0 = inadequate and

–

100 = very good discrimination.

In our experience you should attain a minimum value of 60.

●

Run the teach process repeatedly with modified field variables. You can thereby optimize the unique value.

A reduction in the template window variable to dimensions which are smaller than the fiducial will increase

the unique value, since the fiducial ends will exhibit poor reflectivity when for example wetted with solder

resist. You should not, however, select too small a field as the clarity of the fiducial will also suffer as a

result.

●

With “ESC” you can quit this option.

NOTE

The relationship between uniqueness and quality factor for a fiducial is described in Section 7.5.3.2 Option

“New fiducial”.

Fiducial No. = 8 Uniqueness = 70

Blank: hor./vert.

< : smaller

Tab : field step

Template high res.

1..6 : x/y step

: x axis +

: x axis -

: y axis +

: y axis -

x/y step width = ...Direction = ...

Field step = ...

Ret: teach

> : larger