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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 - 43 7.5.3.5 Option “Test fiducial” NOTE The opti on “Test fiducial” is only ac tiv…

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 - 42 Line engineer

Fig. 7.5.9

The function “Center fiducial” determines by software the center of the fiducial. The parameters for this func-

tion - that is, the edges of the fiducial structure - can be selected in dialog mode. The system places, as a sug-

gestion, edge line markings at the possible edge positions.

●

With the arrow keys you can shift the current edge line marking provided in the header line.

●

With “RETURN” you can accept the position of the suggested edge line marking or of one which has been

shifted. The system then indicates the next edge line marking for acceptance. The sequence in which you

are asked is “fiducial edge left”, “fiducial edge right”, “fiducial edge up” and finally “fiducial edge dn”. This

notation appears in the header line.

The result of the fiducial centering is indicated by a crosshair. The x and y offset values of the center of the

fiducial are entered into the fiducial data field.

●

With the “ESC” key you can quit the option and return to the menu “Teach fiducial”.

PLEASE NOTE:

An incorrectly centered fiducial will cause a placement offset.

Edge ok

Fiducial No. = 8 Edge = left

Ret :

Center fiducial

: up

: dn

: right

: left

Fiducial

Result: Centering crosshair

Edge line markings to be shifted

via cursor keys

Row profile of fiducial

Column profile

of 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 - 43

7.5.3.5 Option “Test fiducial”

NOTE

The option “Test fiducial” is only activated if

— you have already entered a fiducial number and

— a definition already exists for the number selected.

Fig. 7.5.10

The dimensions of the pattern structure and search area are stored in the station computer. These variables

are required for the calculation of the traverse paths for the corner test. The centering offsets of a centering

operation which may have been carried out previously is also taken into account in the calculation of the

traverse paths. After this

–

the test sequence is displayed via the video image,

–

the header line is displayed with the option, the fiducial number and the quality factor.

–

in the footer line the control panels and command sequences are displayed and a test procedure initiated

which determines the quality factor of the fiducial.

●

By pressing the “RETURN” key you can repeat the test procedure.

●

With the arrow keys you can change the gantry position. By entering the numbers 1 ... 6 you can change

the increment.

Error

State

Action

Test fiducial

Single functions

SI80 V 10.x

Vision system

Setup:

Rüstung:

BE - Zuführung

Cluster:

Vision system

Version: 2133

Enter fiducial number

New fiducial

Edit fiducial

Center fiducial

Test fiducial

Move x/y axes

PCB to center conveyor

PCB to output conveyor

Choose gantry

Display errors

Teach fiducial

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 - 44 Line engineer

Fig. 7.5.11

The PCB camera travels to the 4 corners of the search area and executes in each case a measurement com-

mand. For each executed measurement command the machine controller receives the fiducial quality from the

vision evaluation unit (MVS). The worst value (worst case) of the tests is shown on the monitor in the header

line. The quality level ranges from

–

0 = bad to

–

100 = very good

and should not fall below value of 40 for the fiducial and the ink dot. Otherwise we recommend you select

another fiducial.

NOTE

Here compare also the relationship between uniqueness and fiducial quality as described in Section 7.5.3.2

Option “New fiducial”.

Fiducial No. = 8 Quality fact. = 70Test fiducial

test

1..6 : x/y step

Ret :

x/y step width = ...

: x axis +

: x axis -

: y axis +

: y axis -