SG_FSE_SiplaceHF_HF3_00193901-05_eng - 第291页

1 - 91 S tudent Guide SIPLACE HF/HF3 Edition 09/2005 6 Colle ct &Place-Head / DLM2 91 6.6.5 Axis control Dp-Axis The Dp axis is driven with a DC servo motor . The control of the axis occurred with one control signals…

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Student Guide SIPLACE HF/HF3
6 Collect &Place-Head / DLM2 Edition 09/2005
90
12 segment C&P head DLM2 - signal for Z-axis
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Fig. 6.6 - 12 Dynamic signals Z- axis into free space for 12 segment C&P-head DLM2
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6 segment C&P head DLM2 - signal for Z-axis 6
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Fig. 6.6 - 13 Dynamic signals Z-axis into free space for 6 segment C&P-head DLM2
Positioning time: 24ms - 1ms Distance 685 digits
Current nominal
Deviation of pos.
End signal
10ms/Div
2V/Div
500mV/Div
Soll-Positionierzeit: 30ms +/- 3ms Distance 685 digits
Current nominal
Deviation of pos.
End signal
2V/Div
500mV/Div
10ms/Div
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Student Guide SIPLACE HF/HF3
Edition 09/2005 6 Collect &Place-Head / DLM2
91
6.6.5 Axis control Dp-Axis
The Dp axis is driven with a DC servo motor. The control of the axis occurred with one control
signals of the VC3 controller I
nom "W" and I nom "U" = 0. The intermediate circuit voltages is
approx. 60V.
Via a stepping motor, the Dp axis is coupled to the segment of the glass scale. The Dp axis posi-
tions the segment into its position, the Dp axis is then decoupled via the stepping motor again.
Fig. 6.6 - 14 Axis control DP-Axis
6.6.5.1 Check the dynamic DP-Axis
6.6.5.2 Test setup
Please Note:
The test setup for the DP-Axis is the same as the Star-Axis
VC 3
cont
Servo
ampl.
2
M
M
=
Segment
glass
disc
Enco-
der
Swivel in out
Axis card A363 with VC 3 Controller (VC = Velocity Commutation)
Control signal I
nom "W"
LED‘s on the Servo amplifier:
– Power supply ON
– Servo enable, if the the enable signal from the axis board avai-
lable.
– Display R.M.S. current limiter shorter than 2,5 s.
– Error: Overvoltage, -current, -temperature or Nominal current-
overstepping longer than 2,5 sec.
Servo board control directly the DC motor.
DC motor.
Incremental encoder: transmit the exact position of the axis via
the track signals.
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Student Guide SIPLACE HF/HF3
6 Collect &Place-Head / DLM2 Edition 09/2005
92
SITEST: 6 ➠ "Select "C&P heads" ==>"Select head" ==> "Axis functions" ==> "Select
Dp-axis" ==> "Axis dynamic".
12segment C&P head DLM2 (angle resolution 0,025 degree):
==> "Select distance": 100 digits (2,5°-rotation), and 3600 digits (90°-rotation)
6segment C&P head (angle resolution 0,0125 degree):
==> "Select distance": 200 digits (2,5°-rotation), and 7200 digits (90°-rotation)
6.6.5.3 Example for dynamic with the control signal of the Vnom. output
The positioning at 200Digit move the sleeve 2,5 degree in 38 ms (see Fig. 6.6 - 15)
The positioning at 14298 Digit or 178,7 degree take 118 ms (see Fig. 6.6 - 15)
The distance 7200 Digit, refer to 90 degree, take 85 ms, - and not the half time of the 180 degree
positioning. The Phase of constant speed is very short. DP 12 nozzle head 90 degree (3600 Digit)
43 +/-3ms.
Fig. 6.6 - 15 Dynamic signals DP-Axis for excample 6 segment C&P head
Legend
1. Motor current signal (at V nom. output) 2. Uncommutated Current signal Axis adapter
3. Position of deviation 4. End signal
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