SiplaceX4_en - 第388页

1 - 22 S tudent Guide SIPLACE X 8 Collect&Place-Head 20 Edition 09/2005 22 8.2.4 Z-Axis Reference Run Fig. 8.2 - 4 Z-axis reference run PLEASE NOTE: Placement software st artup initiates a comparison of the head EPRO…

100%1 / 670
1 - 21
Student Guide SIPLACE X
Edition 09/2005 8 Collect&Place-Head 20
21
8.2.2 Preparing the Z-axis Reference Run
Fig. 8.2 - 2 Preparing the Z-axis reference run (C&P20)
The retract unit on the C&P20 head of the Z-axis ensures that the Z-axis is already in a safe po-
sition after the machine has been started up. This means that the star can be rotated properly dur-
ing the reference run, without the need for a prior reference run of the Z-axis.
8.2.3 Star Axis Reference Run
Fig. 8.2 - 3 Star axis reference run
The star axis rotates in an anticlockwise direction (1) to the zero point pulse of the incremental
encoder. After the star axis reach the zero point pulse, the zero point correction factor is loaded
and the star axis rotates in a clockwise direction
(2) (according to the zero point correction factor)
until the position and set the counter to 0 digits.
Segment 1 in now in the pickup/placement position.
1
2
3
4
5
6
7
8
9
10
12
11
13
14
15
16
17
18
19
20
Segment 1
Segment 11
S
t
a
r
p
o
s
i
t
i
o
n
CO-
Camera
CO - Sensor
CO - Sensor
1
2
3
4
5
6
7
8
9
10
12
11
13
14
15
16
17
18
19
20
Segment 1
Segment 11
S
t
a
r
p
o
s
i
t
i
o
n
CO-
Camera
CO - Sensor
CO - Sensor
1
2
1 - 22
Student Guide SIPLACE X
8 Collect&Place-Head 20 Edition 09/2005
22
8.2.4 Z-Axis Reference Run
Fig. 8.2 - 4 Z-axis reference run
PLEASE NOTE:
Placement software startup initiates a comparison of the head EPROM Z-axis/star axis zero point
correction factor with that of the machine data. If there is variance, SITEST will offer a new cali-
bration of the zero point correction from the Z- and Star Axis, otherwise a normal Z-axis reference
run will begin.
The Z-Axis travels down to the zero point pulse of the incremental encoder. After the Z- Axis find
the zero point pulse, the zero point correction will be loaded. The Z- Axis travels to the zero point
correction value and the position counter is set to 0 digits.
1
2
3
4
5
6
7
8
9
10
12
11
13
14
15
16
17
18
19
20
Segment 1
Segment 11
S
t
a
r
p
o
s
i
t
i
o
n
CO- Camera
CO- Sensor
CO- Sensor
1 - 23
Student Guide SIPLACE X
Edition 09/2005 8 Collect&Place-Head 20
23
8.2.5 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 cor-
rect placement angles and the determined correction angle from the vision system.
Fig. 8.2 - 5 DP axis reference run
– The machine start procedure: After the DP master firmware is loaded the DP drives are initial-
ized.
– After the reference runs for the Star axis and Z-axis have been performed, the segments rotate
into the 0° position.
– 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 noz-
zle in the factory (mechanically adjusted) and can't be changed.
The C&P head reference run has been successfully completed!
The gantry reference run will now be performed. For details, please refer to the chapter Gantry.
1
2
3
4
5
6
7
8
9
10
12
11
13
14
15
16
17
18
19
20
Segment 1
Segment 11
S
t
a
r
p
o
s
i
t
i
o
n
CO- Camera