00196044-05 - sg x und x4i fse_en - 第254页
C&P20A Reference Run for C&P20A Head Preparing the Z Axis Reference Run S tudent Guide (FSE) SI PL ACE X Series and X4I C&P20A Edition 01/2009 EN 254 7.3.1 Prep aring the Z Axis Reference Run 7.3.2 St ar Axis…
C&P20A
Compressed Air Supply to the C&P20A Reference Run for C&P20A Head
Student Guide (FSE) SIPLACE X Series and X4I
Edition 01/2009 EN C&P20A
253
7.3 Reference Run for C&P20A Head
7-8: Reference run for C&P20 head
The C&P20 head has 22 axes: the Z axis, the star
axis and 20 independently working DP axes, plus
the X and Y axes for the gantry. Before starting
production, all axes must be initialized, so that the
axis controller can locate their actual mechanical
positions. The software start procedure first loads
the DP master firmware and then rotates the DP
axes into the 0° position.
General Procedure
The reference run for the individual axes can
be optimized so that the X, Y, star and all DP
axes visibly start at the same time. As can be
seen in the flow chart, only the Z axis is moved
as the last axis.
C&P20A
Reference Run for C&P20A Head Preparing the Z Axis Reference Run
Student Guide (FSE) SIPLACE X Series and X4I
C&P20A Edition 01/2009 EN
254
7.3.1 Preparing the Z Axis Reference Run
7.3.2 Star Axis Reference Run
7-9: Preparing the Z axis reference run (C&P20A)
The Z axis return unit ensures that the Z axis is in
a safe position (Z up) as soon as the machine is
started. This is the requirement for starting the star
axis reference run.
7-10: Star axis reference run
The star axis rotates in an anticlockwise direction
(1) to the zero pulse of the incremental encoder.
After reaching the zero pulse, the zero point
correction is loaded. The star axis rotates in a
clockwise direction (2) (according to the zero point
correction factor) until the zero point correction
position is reached and then sets the counter to 0
digits.
Segment number 1 is now in pickup / placement
position.
C&P20A
Z Axis Reference Run Reference Run for C&P20A Head
Student Guide (FSE) SIPLACE X Series and X4I
Edition 01/2009 EN C&P20A
255
7.3.3 Z Axis Reference Run
7.3.4 DP Axis Reference Run
The machine start procedure: After the DP master firmware is loaded the DP drives are initialized.
In the reference runs for the star axis, the DP drives rotate the segments into the 0° position again.
The DP axes can also be referenced independently of the star and Z axes.
By determination of the largest amplitude of the Hall sensor becomes the 0° position of the nozzle in
the factory (mechanically adjusted) and can't be changed.
The C&P head reference run has been successfully completed!
The gantry reference run follows – see Chapter Gantry
7-11: Z Axis Reference Run
The Z axis travels down to the zero point pulse of
the incremental encoder. After reaching the zero
pulse, the zero point correction is loaded. The Z
axis travels to the zero point correction value and
the position counter is set to 0 digits.
NOTE:
Station software startup initiates a
comparison of the Z and star axis zero
point correction values between the
head EPROM and the machine data. If
the zero point correction values are not
the same, recalculate the zero point
correction for the Z and star axes.
7-12: DP axis reference run
The DP axis rotates the nozzle into the correct
pickup angle and placement angle. After
component recognition has been performed, the
DP axis turns the components into the correct
placement angles and the determined correction
angle from the vision system.