00194440-10_SM_X-Series_Customer_en.pdf - 第290页

Settings Axis Control 5.2.3 C&P6/12 290 Service Manua l SIPLACE X Series Checking the DP Axis Dynamics Measurement Setup SITEST: ► Select C&P heads ==> Select head ==> Axis functions ==> Select the DP ax…

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Settings
5.2.3 C&P6/12 Axis Control
Service Manual SIPLACE X Series 289
5.2.3.5
5.2.3.5 Axis Control of DP Axis
Axis Control of DP Axis
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
VC3 controller I -target "W" and I -target "U" = 0. The in-
termediate circuit voltage is approx. 60 V. A stepping mo-
tor is used to couple the DP axis to the glass of the
segment. The DP axis positions the segment and is then
decoupled via the stepping motor.
1. Axis controller board A363 with VC3 controller (VC =
Velocity Commutation) or A 364
2. 1 control signal
3. LEDs on servo amplifier:
4. Servo amplifier
5. DC motor.
6. Read unit: 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 5.2.3 C&P6/12
290 Service Manual SIPLACE X Series
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 paths: 100 digits (for 2.5° rotation) or 3600 digits for 90° rotation.
For C&P6 (angle resolution 0.0125 degrees):
► ==> Select paths: 200 digits (for 2.5° rotation) or 7200 digits for 90° rotation.
Signal Example with the Vnom. Output
The positioning by 200 digits equals 2.5 degrees and approx. 38 ms (see "5.2.3.5.3 Signal Example with
the Vnom. Output" [ ➙ 290]). When positioning to 14298 digits (178.7 degrees), we have 118 ms. The
distance of 7200 digits corresponds to 90 degrees and 85 ms, this not being half the positioning time as
the phase of constant speed is very short.
NOTICE
Same measurement procedure
The measurement procedure follows the same preparations and procedures as for the star ax-
is.
Dynamic signals for DP axis, example of C&P6
1. Control signal (at V nom. axis test box)
2. Uncommutated current signal at axis adapter
3. Deviation of position
4. End signal
Settings
5.2.3 C&P6/12 Axis Control
Service Manual SIPLACE X Series 291
C&P12 - signal for DP axis, 100 digits
12er C&P head DLM2 - signal for DP axis, 3600 digits
Dynamic signals for DP axis, example of C&P6
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 DP axis, 100 digits for C&P12
1. Current target value: 200 mV/Div
2. Position deviation: 500 mV/Div
3. End signal
Time basis: 5ms/Div
Path: 100 digits
Travel curves for DP axis, 90 degrees rotation, C&P12
1. Current target value: 200 mV/Div
2. Position deviation: 500 mV/Div
3. End signal
Time basis: 10ms/Div
Path: 3600 digits