00196044-05 - sg x und x4i fse_en.pdf - 第371页

Twin Head Calibration of Vacuum Generator on the Twin Head Settings S tudent Guide (FSE) SIPL ACE X Series and X4I Edition 01/2009 EN T win Head 371 9.4.6 Calibration of V acuum Generator on the T win Head The vacuum gen…

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Twin Head
Settings Calibrating the Head Height
Student Guide (FSE) SIPLACE X Series and X4I
Twin Head Edition 01/2009 EN
370
9.4.4.1 Manual Calculation of the D-Axis Zero Point Correction
SITEST:
X Select
Twin Head
X Select
Axis functions
X Select the appropriate Twin module.
X Select the checkbox
D Axis
X Select
Positions...
X Set the zero point correction to
0
.
X Perform an axis reference run for the D-axis.
X Put the calibration nozzle for the Twin head manually on the sleeve of the appropriate Twin module.
Make sure that the two adjust pins of the nozzle fit correctly.
X Deactivate the D axis of the Twin module at the axis board.
X Manually rotate the nozzle into the zero position:
The drilling on the calibration nozzle must point to the center (from SW 505 onwards) of the machine
and the nozzle must be aligned parallel to the PCB conveyor.
X In order to display the position of the D axis, open the
Z axis
menu by checking the checkbox and
then return to
D Axis
.
X Enter the shown value for the D-axis as zero point correction value.
X Activate the D axis at the axis board.
X Perform an axis reference run for the D-axis.
X Now check the position of the nozzle:
The drilling on the calibration nozzle must point to the center (from SW 505 onwards) of the machine
and the nozzle must be aligned parallel to the PCB conveyor.
X Do not forget to perform D axis calibration afterwards. (see Section (9.4.4 Calibrating the D-Axis
J
369 ) ).
9.4.5 Calibrating the Head Height
The Z axis zero point correction is determined with this menu.
SITEST:
X Select
Twin Head
X Select
Calibration functions
X Select
Calibrate head height
.
NOTE:
Make sure that the 517 nozzle is on the Twin head and has been entered in the software.
The zero point correction, plus the maximum and minimum travel range for the Z axis will be
correctly set after performing "head height" calibration.
Twin Head
Calibration of Vacuum Generator on the Twin Head Settings
Student Guide (FSE) SIPLACE X Series and X4I
Edition 01/2009 EN Twin Head
371
9.4.6 Calibration of Vacuum Generator on the Twin Head
The vacuum generator is part of a Twin head segment and creates the vacuum and air blast for the
pickup and placement process. The zero calibration of the vacuum generator should be performed on
initial setup at the customer site and after exchanging the vacuum generator or Twin module.
If the vacuum generator is not calibrated, incorrect threshold values will be taken to calculate the open
and closed vacuum and you could get error messages such as "No component on the nozzle or nozzle
is dirty".
With the aid of the zero calibration, we can position the vacuum generator motor in a middle or neutral
position, so that there is no air blast or vacuum present at the nozzle.
9.4.6.1 Zero Calibration of Vacuum Generator
X Start the SITEST.
SITEST:
X Select
TWIN Head
X Select
Head Board
9-15: SITEST functions - head board
X Select the required
Segment
X Close the nozzle of the appropriate Twin
module (e.g. by sealing it with your finger tip).
9-16: Correction values after zero calibration
X Select
Zero calibration pressure regulator
The dialog box on the left shows the correction
value calculated.
X Select
OK
.
The correction value will be accepted - now the
reference value equals the ambient pressure.
Twin Head
Settings Calibration of Vacuum Generator on the Twin Head
Student Guide (FSE) SIPLACE X Series and X4I
Twin Head Edition 01/2009 EN
372
9.4.6.2 Checking the Zero Calibration
SITEST:
X Select
Twin Head
X Select
Head Board
X Select
Measure Pressure
The zero calibration is performed with disabled vacuum and air blast (see Section (9.4.6.1 Zero Calibra-
tion of Vacuum Generator
J
371 ) ).
9.4.6.3 Calibrating the Closed Vacuum
SITEST:
X Select
Twin Head
X Select
Calibration functions
X Select
Calibrate closed vacuum
9.4.6.4 Checking the Pressure Tightness of the Vacuum System
X Start SITEST.
X Move the gantry so that you can easily reach the nozzle with one and the keyboard with the other
hand.
SITEST:
X Select
Twin Head
.
X Select
Head Board
.
NOTE:
The pressure deviation to the ambient pressure at 0 - mbar (zero calibration) should not exceed
+/-10 mbar.
NOTE:
The value "Vacuum closed" is measured and stored for both Twin modules.
A dialog box shows the old and the new values.
NOTE:
The term "closed vacuum" corresponds to "threshold value closed".