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Reference run Reference Run C&P12 Preparation for z-axis reference r un S tudent Guide SIPLACE D4 (FSE) Reference run EN 09/2006 11 0 5.3.4 Preparation for z-axis reference run 5.3.5 Reference run at star-axis The Z-…

Reference run

Reference Run for Z and Star Axes Reference Run C&P12

Student Guide SIPLACE D4 (FSE)

EN 09/2006 Reference run

109

5.3.3 Reference Run for Z and Star Axes

Reference run

Reference Run C&P12 Preparation for z-axis reference run

Student Guide SIPLACE D4 (FSE)

Reference run EN 09/2006

110

5.3.4 Preparation for z-axis reference run

5.3.5 Reference run at star-axis

The Z-axis runs to uppermost end stop. When

stand still is detected the Z-axis runs down by 30

digits with reduced force. This Z-axis position with

reduced force enables the placement star to move

into reference position.

The star-axis turns counter clockwise to zero point

pulse of the incremental shaft encoder. The zero

point correction is loaded. The star-axis turns

clockwise (according the zero point correction)

until the position counter shows 0 digit.

Segment 1 is now in the pickup/placement

position.

Reference run

Completion of the Z-axis reference run Reference Run C&P12

Student Guide SIPLACE D4 (FSE)

EN 09/2006 Reference run

111

5.3.6 Completion of the Z-axis reference run

5.3.7 Reference Run at Dp-axis

The function of the DP axis is, to turn the nozzle in the correct pick up angle. After the component

recognition the DP-axis turn the components in correct placement angle.

C&P reference run completed!

This is followed by the gantry reference run (see section Gantry).

 The star axis rotates to 6250/6750 digits. At

these positions, there is a segment ball

bearing between the Z-axis claw and the

circular arc. guide. The various different star

positions compensate a Z-0 correction angle

error.

 The Z-axis moves to the bottom end position

stop for the 1st star position and to thetop end

position stop for the 2nd star position.

 The average value of these results is

calculated and sent to the axis control system

as a negative reference value (ZPC).

 Star-axis is moved back to reference position.

 The Z-axis restarts the reference run with the

new zero point correction value.

 The segment now in the DP-station is turned to

reference position. (segment 5 for 12 nozzle

head.)

 Sequence: the DP-station swivels in. The axis

starts and searches for the zero pulse. The

DP-station swivels out after the end signal.

 The swiveling function is controlled by the

CAN-Bus.

 The rotation of the sleeve is regulated by the

axis controller, which contains the DP position

encoder.

 The zero point correction on the DP-axis is

always 0 (because up to 12 segments are

operated by one drive).