Infinity EX Camera System Module.pdf - 第45页

INFINITY EX CAME RA SYSTE M MODULE CALIBR ATIONS Chapter Issue 3 J an 04 Technical Reference Manual 17.45 CALIBRA TIONS Board Stop X Offset Calibration W ARNING BO ARD CLAMPS. EXTREME CARE MUST BE EXERCISED WHEN WORK ING…

INFINITY

CAMERA SYSTEM MODULE

REPLACEMENT PROCEDURES

17.44 Technical Reference Manual Chapter Issue 3 Jan 04

3. At the board stop solenoid, on the left hand end of the pneumatic manifold:

a. Remove the pipe from the in-line flow controller fitted to the front/*rear

port. The pipe is either marked Remote/B/Stop Up - RH or Remote/B/

Stop Up - LH.

b. Remove the pipe from the in-line flow controller self-sealed connector,

fitted to the rear/*front port. The pipe is either marked Remote/B/Stop

Down - RH or Remote/B/Stop Down - LH.

c. Fit the pipe marked Board Stop to the in-line flow controller fitted to the

front/*rear port.

NOTE

*For the following machine serial numbers: 275119, 276057, 276004,

276357 & 276380 fitted with a Norgren manifold.

4. At Breakout Board B, located on the rear left of the base casting (inside face):

a. Remove BPL6A from BSK6.

b. Connect BPL6 to BSK6.

5. Fit the rear cover. Fit the left hand side cover.

Machine Setup 1. Connect the pneumatic supply to the machine.

2. Switch on the machine

3. Select Set Prefs.

4. Select Remote Board Stop.

5. Select Not Fitted.

6. Exit Set Prefs.

7. Set up the machine to print the product, refer to the Machine Programming

chapter in the User manual.

INFINITY

CAMERA SYSTEM MODULE

CALIBRATIONS

Chapter Issue 3 Jan 04 Technical Reference Manual 17.45

CALIBRATIONS

Board Stop X Offset Calibration

WARNING

BOARD CLAMPS. EXTREME CARE MUST BE EXERCISED WHEN

WORKING IN THE TOOLING AREA OF THE MACHINE TO AVOID

INJURY. THE FOILS ON THE FRONT AND REAR BOARD CLAMPS

ARE VERY SHARP.

The length of the camera optical unit varies from unit to unit, this alters the

position of the board stop and hence the board. This calibration provides an

offset to overcome variations in camera optical length. Non-compliance of this

calibration could cause compatibility issues with product files created on other

machines.

1. In Diagnostics select Camera Axes module. Select Home Camera X Axis.

2. Select Home Camera Y Axis.

3. Select Drive to Board Stop Position. Select Exit. Select Rail System

module.

4. Select Toggle Board Stop. Place a board onto the rails and up against the

board stop.

5. Select Toggle Board Clamps. Select Toggle Board Stop. Select Exit.

6. Place a metric rule against the board edge, within the camera field of view.

From the monitor record the distance from the board edge to the cross hair

on the fiducial (figure below refers). This value is the Board Stop X Offset

and should be 28 mm - 30 mm approximately.

NOTE

The default coloured graphic overlay is set to square (red outline).

7. Select Exit four times. Press the System button to initialize the machine.

SEMI 2

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INFINITY

CAMERA SYSTEM MODULE

CALIBRATIONS

17.46 Technical Reference Manual Chapter Issue 3 Jan 04

8. Select Maint. Select Set Prefs.

9. Select Board Stop X Offset and enter the value recorded in Step 11 above.

10.Select Exit twice.

Vision System

Calibration

For the vision alignment to function accurately a full system calibration is

required. This should be carried out by the maintenance personnel at the

required period and during installation of the machine.

The calibration of the vision system is carried out in two stages using a

calibration screen, DEK Part No. 134764, containing 25 equally spaced fiducials

and a calibration board, DEK Part No. 134765.

The first stage, Calibrate Vision is employed to precisely calibrate the machine’s

alignment system in the X, Y and Theta axes. Once the vision system is aligned

any alignment errors between the screen and board can be effectively reduced.

If this calibration is not carried out at the required periods there is an increased

possibility of misalignment of the vision system thereby; screen to board errors

cannot be eliminated causing misaligned prints.

Calibrate Video X, Y calculates the screen movement in millimetres to vision

system pixels. This is achieved by looking up at the calibration screen fiducials

and moving the screen in the X and Y directions by a fixed amount, for each of

the 25 fiducials.

The movements are calculated for each fiducial and the mean taken. This

average screen movement is recorded and used as part of the calibration data.

Calibrate Theta calibrates the screen theta movement. The camera selects three

screen fiducials and the screen moves in theta (using the two X axes and

implementing +2mm in X rear and -2mm in X forward to achieve the theta

movement). The movements are calculated for each fiducial and the average

taken. The data is recorded and the calibration is complete.

The second stage, Calibrate Offset is to compensate for any optical discrepancies

of the telecentric camera between viewing the board and screen, caused by

tolerances in machine build and or manufacture of the camera. This calibration

eliminates any resultant constant offset errors in print results produced by the

camera. If this procedure is not carried out at the required periods the resultant

prints may have a constant offset error present.

This is achieved by printing the calibration screen and measuring the differences

between the centroid of the screen fiducials and the centroid of the printed

fiducials. The average of these differences are calculated, recorded and used as

Set Preferences

.. more

CHANGE MODE OPTION

SCREEN SIZE

PAPER/SOLV/PASTE LOW

IMAGE RECORDING

UNDER SCREEN CLNR

TRANSPORT WAIT MODE

CLAMP TYPE

SNUGGER THICKNESS

DISPLAY TYPE

FIDUCIAL MONITORING

FIDUCIAL SEARCH

BOARD STOP X OFFSET

SPC PORT CONFIG

RAIL JUSTIFICATION

MANUAL

265

WARN

OFF

STANDARD

BOARD CLAMPS

1.6 mm

TYPE 2

SMART

DISABLED

28.0 mm

EDIT

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