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1 - 83 S tudent Guide SIPLACE X Edition 09/2005 6 Coll ect &Place-Head 6/12 83 – M ove the gant ry in the Service positio n, so that the Z-axis move in a free space. SITEST : 6 ➠ "Select "C&P heads&quot…

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Student Guide SIPLACE X
6 Collect &Place-Head 6/12 Edition 09/2005
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6.6.4 Axis control Z-Axis
The Z-axis is driven with a DC servo motor. The control of the axis occurred with one control si-
gnals of the VC3 controller I
nom "W" and I nom "U" = 0. The intermediate circuit voltages is
approx. 60V.
Fig. 6.6 - 10 Axis control Z-Axis
6.6.4.1 Check the dynamic Z-Axis
6.6.4.2 Test setup
Please Note:
The test setup for the Z-Axis is the same as the Star-Axis
The positioning time for the Z-Axis is 30ms +/-3ms (6 segment C&P head) and 24ms, -1 ms of the
12 segment C&P head.
Axis controller ’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 available.
– Display R.M.S. current limiter shorter than 2,5 s.
– Error: Overvoltage, -current, -temperature or Nominal current-over-
stepping longer than 2,5 sec.
Servo board control directly the DC motor.
DC motor.
Between the motor and the incremental encoder exist a fixed mechanical
combination.
Incremental encoder: transmit the exact position of the axis via the track
signals.
Elastic mech. Combination (Belt) and light barrier below, for the fast
recognition of the lower position.
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Student Guide SIPLACE X
Edition 09/2005 6 Collect &Place-Head 6/12
83
– Move the gantry in the Service position, so that the Z-axis move in a free space.
SITEST: 6
➠ "Select "C&P heads" ==> "Select head" ==>"Axis functions" ==> "Select
Z-axis" ==> "Continuous run Z-axis" ==> "Select DIGIT for display" ==>"Edit: Target position
685 digits and Position mode = absolut" ==> "Sart".
➠ If necessary, press the START button.
6.6.4.3 Example for dynamic with the control signal of the Vnom. output
Fig. 6.6 - 11 Dynamic signals Z-Axis for excample 6 segment C&P head
Legend
(1) Control signal (Axis testbox V nom.) (2) Uncommutated Current signal Axis adap-
ter
(3) Position of deviation (4) End signal
1
2
3
4
1
2
3
4
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Student Guide SIPLACE X
6 Collect &Place-Head 6/12 Edition 09/2005
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12 segment C&P head DLM2 - signal for Z-axis
6
Fig. 6.6 - 12 Dynamic signals Z- axis into free space for 12 segment C&P-head DLM2
6
6 segment C&P head DLM2 - signal for Z-axis 6
6
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