00196044-05 - sg x und x4i fse_en - 第319页
Collect, Pick and Place Head (CPP) DP Axis Reference Run Reference run CPP head S tudent Guide (FSE) SIPL ACE X Series and X4I Edition 01/2009 EN Collect, Pick and Place Head (CPP) 319 8.3.3 DP Axis Reference Run In th…
Collect, Pick and Place Head (CPP)
Reference run CPP head Reference run Z axis
Student Guide (FSE) SIPLACE X Series and X4I
Collect, Pick and Place Head (CPP) Edition 01/2009 EN
318
8.3.1 Reference run Z axis
8.3.2 Star Axis Reference Run
8-3: Preparing the Z axis reference run (CPP)
Legend
A : Vacuum measurement hold circuit
B : Vacuum measurement placement circuit
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 Z
axis reference run.
NOTE:
The zero point correction in the Z axis
EEPROM needs to be identical with the
value in the machine data.
From SW 702 this value is
automatically copied to the machine
data when the head is changed.
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.
8-4: Star axis reference run
Legend
1. Direction of rotation
A : Vacuum measurement hold circuit
B : Vacuum measurement placement circuit
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 continues to
rotate around the zero point correction value and
sets the position counter to 0 digits.
Segment number 1 is now in pickup / placement
position.
Collect, Pick and Place Head (CPP)
DP Axis Reference Run Reference run CPP head
Student Guide (FSE) SIPLACE X Series and X4I
Edition 01/2009 EN Collect, Pick and Place Head (CPP)
319
8.3.3 DP Axis Reference Run
In the reference run for the star axis, the DP drives rotate the segments into the 0° position.
The DP drives rotate in a clockwise direction, to the zero pulse of the incremental encoder. After the
zero pulse has been reached, the zero point correction value is loaded. The DP axis continues to
rotate around the zero point correction value and sets the position counter to 0 digits.
Reference run of CPP head finished!
The gantry reference run follows – see Chapter Gantry
8-5: DP axis reference run
Legend
A : Vacuum measurement hold circuit
B : Vacuum measurement placement circuit
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.
Collect, Pick and Place Head (CPP)
Reference run CPP head Height Reference Run
Student Guide (FSE) SIPLACE X Series and X4I
Collect, Pick and Place Head (CPP) Edition 01/2009 EN
320
8.3.4 Height Reference Run
With this function we check the correct fitting of the nozzle on the sleeve and that the correct nozzle type
like the programmed one are set to the sleeves. The nozzle length is taken to calculate the pick up and
placement height for the subsequent placements.
The gantry moves the placement head to the fixed conveyor side at height measurement position.
The star turns the segment for measuring into the pickup/placement position
The value
Open vacuum
is measured for the relevant segment.
The Z axis is positioned downwards:
When the component sensor beam is interrupted, the Z position of the axis is determined for the
component sensor.
When the Z axis touches the conveyor side, the mechanical nozzle length is determined by the Z
position value and the closed vacuum value is measured.
The Z axis is positioned upwards:
When the component sensor beam is no longer interrupted, the Z position of the axis will be
measured again for the component sensor.
During each star rotation, the holding circuit is checked with open and closed nozzle in the 12.00
position.
Valve terminal check.