00195193-02 SG D4 FSE en (1) - 第118页

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-a xis reference run 5.3.7 Reference Run at Dp-axis The fu…

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).

Reference run

Reference Run C&P12 Sequence vacuumcheck

Student Guide SIPLACE D4 (FSE)

Reference run EN 09/2006

112

5.3.8 Sequence vacuumcheck

5.3.9 Determining the Vacuum and Threshold Values

5.3 - 2: Measuring and calculating the vacuum values for a reference run

Contaminants and components are released or

removed and nozzles are rotated to 0°.

 The gantry axes move the Collect & Place

head to the reject position.

 The star axis moves counterclockwise and all

three functions are performed within one head

cycle.

1. The DP-station is swiveled in and turns each

segment to 0° position.

2. The air kiss valve is opened, the valve drive of

the reject position is activated and switches

between open and closed. Anything on the

nozzle is rejected. The air kiss valve is closed.

The gantry axes move the Collect & Place

head to the fixed conveyor side.

3. where the vacuum reference values are

measured at the pickup/placement station.

These are the reference values for each

segment for the vacuum checks during

placement.