00195376-05_SM_D1_D1i_D2_D2i_EN - 第229页

Settings 6.4.8 Axis Control of DP Axis Axis Control Service Manual SIPLACE D1/D1i/D2/D2i 229 C&P6 – Z axis 6.4.8 6 . 4 . 8 A x is C o n t r o l o f D P A x is Axis Control of DP Axis Travel curves for Z-axis o f C&am…

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Settings
Axis Control 6.4.7 Axis Control of Z Axis
228 Service Manual SIPLACE D1/D1i/D2/D2i
Signal Example with the Vnom. Output
C&P12 – Z axis in free space
Dynamic signals for Z-axis in example of C&P6 head
Legend
1. Control signal (at V nom. axis test box)
2. Uncommutated current signal at axis adapter
3. Deviation of position
4. End signal
Dynamic signals for Z-axis in example of C&P6 head
Legend
1. Control signal (at V nom. axis test box)
2. Uncommutated current signal at axis adapter
3. Deviation of position
4. End signal
Travel curves for Z-axis of C&P12 head, in free space
Legend
1. Current target value: 2V/Div
2. Deviation of position 500mV/Div
3. End signal
Time basis: 10ms/Div
Target positioning time: 24 ms -1 ms
Range: 685 digits
Settings
6.4.8 Axis Control of DP Axis Axis Control
Service Manual SIPLACE D1/D1i/D2/D2i 229
C&P6 – Z axis
6.4.8
6.4.8 Axis Control of DP Axis
Axis Control of DP Axis
Travel curves for Z-axis of C&P6 head, in free space
Legend
1. Current target value: 2V/Div
2. Deviation of position 500mV/Div
3. End signal
Time basis: 10ms/Div
Target positioning time: 30 ms +/- 3 ms
Range: 685 digits
Axis control of DP axis
The DP axis is driven via a DC servo motor. Activation is
via a control signal (second control signal = 0) from the
processor of the A364 I
target "W"
and I
target "U"
= 0. The
intermediate circuit voltage is approx. 60V. Via a stepping
motor, the DP axis is coupled to the glass of the segment.
The DP axis positions the segment and is then decoupled
via the stepping motor.
Legend
1. Axis board A364
2. Control signal I nom "W"
3. Servo amplifier
4. LEDs on servo amplifier:
5. DC motor.
6. Incremental encoder: transmits the exact position of
the axis (track signals).
7. Segment glass
8. Swivel in
The servo board controls the DC motor directly.
Settings
Axis Control 6.4.8 Axis Control of DP Axis
230 Service Manual SIPLACE D1/D1i/D2/D2i
6.4.8.1
6.4.8.1 Checking the DP Axis Dynamics
Checking the DP Axis Dynamics
Measurement Setup
SITEST:
► Select C&P heads ==> Select head ==> Axis functions
==> Select the DP axis ==> Axis dynamics.
12 segment C&P head DLM2 (angle resolution 0,025 degree):
► ==> "Select distance": 100 digits (2.5° rotation), and 3600 digits (90° rotation)
For C&P6 (angle resolution 0.0125 degrees):
► ==> "Select distance": 200 digits (2.5° rotation), and 7200 digits (90° rotation)
Signal Example with the Vnom. Output
The positioning by 200 digits equals 2.5 degrees and approx. 38 ms (see "6.4.8.1.2 Signal Example with
the Vnom. Output" [ ➙ 230]). 118 ms are needed to position to 14298 digits (178.7 degrees). The dis-
tance of 7200 digits or 90 degrees takes 85 ms. This is not half the previous positioning time, as the
phase of constant speed is very brief. DP 12seg. head 90 degrees (3600 digits) 43 +/-3 ms.
NOTICE
The measurement procedure follows the same preparations and procedures as for the star ax-
is.
Dynamic signals for DP axis, in example of C&P6
Legend
1. Control signal (at V nom. axis test box)
2. Uncommutated current signal at axis adapter
3. Deviation of position
4. End signal
Dynamic signals for DP axis, in example of C&P6 head
Legend
1. Control signal (at V nom. axis test box)
2. Uncommutated current signal at axis adapter
3. Deviation of position
4. End signal