00195193-02 SG D4 FSE en (1).pdf - 第185页
Axis dynamic Axis control C&P head axes Axis control Dp-Axis S tudent Guide SIPLACE D4 (FSE) Axis dynamic EN 09/2006 172 7.5.5.1 Check the dynamic DP-Axis 7.5.5.1.6 T est set up SITEST: X Select C&P heads ==> …
Axis dynamic
Axis control Dp-Axis Axis control C&P head axes
Student Guide SIPLACE D4 (FSE)
EN 09/2006 Axis dynamic
171
7.5.5 Axis control 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
voltages is approx. 60V. Via a stepping motor, the
Dp axis is coupled to the segment of the glass
scale. The Dp axis positions the segment into its
position, the Dp axis is then decoupled via the
stepping motor again.
Legend:
1. Axis board A364
2. Control signal I nom "W"
3. LED‘s on Servo board:
– Power supply ON
– Servo enable, it the enable signal from the
axis board.
– Display R.M.S. current limiter shorter than
2,5 s.
– Error: Overvoltage, overcurrent,
overtemperature or nominal current
overshoot longer than 2.5 sec.
4. 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.
Axis dynamic
Axis control C&P head axes Axis control Dp-Axis
Student Guide SIPLACE D4 (FSE)
Axis dynamic EN 09/2006
172
7.5.5.1 Check the dynamic DP-Axis
7.5.5.1.6 Test set up
SITEST:
X Select
C&P heads
==>
Select head
==>
Axis functions
==> Select the DP axis ==>
Axis dynamics
.
12segment C&P head DLM2 (angle resolution 0,025 degree):
X ==> "Select distance": 100 digits (2.5° rotation), and 3600 digits (90° rotation)
7.5.5.1.7 Example for dynamic with the control signal of the Vnom. output
The positioning by 100 digits equals 2.5 degrees and approx. 13 ms (see Section 7.5.5.1.7 Example for
dynamic with the control signal of the Vnom. output [J 171]). DP 12-segment head 90 degrees
(3600 digits) 39 +/-3 ms.
NOTE:
The measurement procedure is prepared and performed identically to that for
the star axis.
C&P-Head - signal for DP-axis, 100 digits
Legend:
1. Current signal for axis adapter
2. Motor current signal (at V nom. output) current
target value: 200mV/Div
3. Deviation of position 500mV/Div
4. End signal
Time basis: 5ms/Div
Positioning time: 13ms +/-3ms
Path: 100 digits
Axis dynamic
Axis control Dp-Axis Axis control C&P head axes
Student Guide SIPLACE D4 (FSE)
EN 09/2006 Axis dynamic
173
C&P-Head - signal for DP-axis, 3600 digits
Legend:
1. Current signal: 200mV/Div
2. Control signal Vnom.
3. Deviation of position 500mV/Div
4. End signal
Time basis: 10ms/Div
Positioning time: approx. 46 ms +/-3 ms
Path: 3600 digits