00190725-01.pdf - 第104页

The f oll ow ing display appears o n the screen : IS NOZZLE DOWN O N COMPONENT CAMERA ? PR ESS <RETURN> 4. Visually inspect the cont act p oin t of the nozzle and conf irm with "RETURN" (even when the Z-a…

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7.14 COMPONENT CAMERA MENU
For the procedure, note:
➤
First
determine the "COMPONENT CAMERA HEIGHT"
and then
"EXECUTE THE FOLLOWING POINTS".
➤ Correct calibration factors are a
prerequisite
for the further calibration (remember this when selecting the
menu options individually).
➤ After the measuring routine "DETERMINE CALIBRATION FACTORS" and acceptance of the new calibra-
tion factors (= after successful measurement!) the menu options "DETERMINE CAMERA CENTRE" and
"DETERMINE ROTATION ANGLE" on the component camera menu must
also
be carried out in any case!
➤ Moreover, when
individually selecting
the menu options, note:
The calibration plate must not be
exchanged or turned, not even
180 degrees,
between the individual
measuring procedures.
Testing aids required
• Steel nozzle in perfect condition, type 104, item no. 00301435
• Vacuum nozzle adapter, type 117, item no. 00300659
• VISION 2 calibration plate, item no. 00132070
• Teach panel (external), item no. 00132207
7.14.1 Procedure: "COMPONENT CAMERA HEIGHT"
NOTE
With machines up to and including
batch identity no. 3
, width adjustment is
now
to be performed using
the handwheel. However, this is not necessary if you only wish to carry out the measuring routine "COM-
PONENT CAMERA HEIGHT" as no PCB needs to be placed into the conveyor in this case.
1.
From the main menu, select the
"COMPONENT CAMERA MENU"
.
The "COMPONENT CAMERA MENU" (see Fig. 1.4) is displayed on the screen.
• Now, if you have not already done so in the course of individual checks, install a steel nozzle in perfect
condition (normal size) → not a
pointed
nozzle!
2.
First select
"CENTERING CAMERA HEIGHT"
. The following display appears on the screen:
’TEACH’ PLACEMENT HEAD OVER COMPONENT CAMERA
TEACHING IS ON, ’END’ TO FINISH
NOTE
In addition the current ACTUAL position of the placement head in X, Y and Z-directions is displayed.
3.
Teach the nozzle in X/Y-direction approximately in the
center
above the glass disk of the component vision
module and then press "END" on the teach panel.
➤ The Z-axis is lowered by means of the sensor stop.
User’s Manual AutoCal Program 7 AutoCal Measuring Sequence: Routine Checks on HS-180 Placement Stations
Software Version 114.xxx 7.14 COMPONENT CAMERA MENU
7 - 29
The following display appears on the screen:
IS NOZZLE DOWN ON COMPONENT CAMERA ?
PRESS <RETURN>
4. Visually inspect the contact point of the nozzle and confirm with "RETURN" (even when
the Z-axis has been incorrectly placed on the plate). The following display appears on the screen:
CENTERING CAMERA HEIGHT 1.3
CENTERING CAMERA HEIGHT; OLD: ............... NEW: ................
ACCEPT VALUE(S) ? (YES / NO)
NOTE
The height value displayed indicates the difference between the PCB lower edge and the surface of the
glass disk, in mm.
5. If the point of contact was incorrect, then select "NO" and repeat the sequence as described above from
point 3 onward.
6. If the point of contact was correct then select "YES". The values determined are accepted.
• The COMPONENT CAMERA MENU is displayed.
7.14.2 Procedure: "EXECUTE THE FOLLOWING POINTS"
NOTE
Carefully take hold of the calibration plate only at the outer edges. Check the calibration plate:
➤ The surface must be clean (no dust, etc.) and without any oxidation layer on it.
➤ All metal surfaces must have the same coloring. Otherwise it is possible that the pin configuration
cannot be recognized during the measurement procedure!
1. On machines up to and including batch identity no. 3, adjust now the conveyor width to the width of the
PCB (handwheel).
2. From the Centering Camera menu select "EXECUTE THE FOLLOWING POINTS". The following display
appears on the screen:
PLUG-IN POSITION NEXT TO COMPONENT CAMERA MUST BE FREE DURING CALIBRATION !!!!
PRESS <RETURN>
• Performance of the action:
Check the space to the left and right of the optic module and remove , if necessary, the feeder modu-
le(s). The coplanarity laser module is not a hindrance when measuring (same height) and therefore re-
mains installed. When these requirements have been fulfilled, confirm with "RETURN".
3. The "DETERMINE CALIBRATION FACTORS" run follows automatically:
• The calibration plate is picked up and centered. The following display appears on the screen:
’TEACH’ PLACEMENT HEAD OVER COMPONENT CAMERA
TEACHING IS ON, ’END’ TO FINISH
7 AutoCal Measuring Sequence: Routine Checks on HS-180 Placement Stations User’s Manual AutoCal Program
7.14 COMPONENT CAMERA MENU Software Version 114.xxx
7 - 30
• Performance of the action:
Teach the calibration plate centrally over the glass disk of the component camera (check the vision
evaluation screen) → press the "END" button on the teach panel.
• The calibration plate is now placed onto the glass disk of the component camera several times from dif-
ferent directions.
4. The calibration factors determined are displayed as follows, for example:
CALIBRATION FACTORS
COEFFICIENTS IN X -.0016 ........ .........
COEFFICIENTS IN Y ....... . ........ ..........
VALUES X3 AND Y3 ARE NOT STORED BUT OCCUPIED WITH 0.
➤ In the case of an error, the screen display appears:
CALIBRATION NOT SUCCESSFUL AFTER FIVE ATTEMPTS
PLEASE CHECK HARDWARE (E.G. AMPLIFICATION, POSITION CONTROL )
• In this case of error the values are not transferred into the computer and the measuring procedure is
not continued.
Troubleshooting:
• Select "END" (function key) → the PCB together with the plate is conveyed to the output conveyor.
• Check the calibration plate for contamination or oxidation.
• Clean the glass disk of the component camera module with a premoistened lens cloth.
• Repeat the measurement (see point 2). If the measurement is correct, point 6 follows.
• If this error recurs during the second measurement run, inform the SMD Service of Siemens AG.
5. If the measurement is correct (no display) then the check measurement is carried out automatically and
the display appears on the screen:
EXAMINATION OF CALIB. FACTORS
➤ The calibration was incorrect: Error message (as above) "CALIBRATION NOT SUCCESSFUL
AFTER FIVE ATTEMPTS".
➤ The calibration was successful: The values are transferred to the main memory and point 7 follows.
6. The measurement "DETERMINE CAMERA CENTRE" follows automatically. The values are displayed,
as for example:
DETERMINE COMP. CAMERA CENTRE
CAM. CENTRE RELATIVE TO REF. POINT X= 423.28 [MM]
Y= -17.94 [MM]
• The values determined are automatically transferred to the main memory.
7. The procedure "DETERMINE ROTATION ANGLE" is automatically carried out:
• After the calibration plate has been deposited the center of the row of leads in both x and y-directions
is determined and the angular offset is calculated from these values.
User’s Manual AutoCal Program 7 AutoCal Measuring Sequence: Routine Checks on HS-180 Placement Stations
Software Version 114.xxx 7.14 COMPONENT CAMERA MENU
7 - 31