00196044-05 - sg x und x4i fse_en.pdf - 第292页
C&P20A Axis Control Star Axis Control System S tudent Guide (FSE) SI PL ACE X Series and X4I C&P20A Edition 01/2009 EN 292 7.7.3.4 Signal Example with the Vnom. Output The star axis dynamics are checked in the pe…
C&P20A
Star Axis Control System Axis Control
Student Guide (FSE) SIPLACE X Series and X4I
Edition 01/2009 EN C&P20A
291
7.7.3.2 Measurement Setup Note
7.7.3.3 Measurement Setup with SAT Box and A364
7-54: Measurement setup with SAT box
NOTE:
When checking the dynamics, it may be sufficient if you check the travel times and overshoot
behavior of the axis with the SIPLACE axis tester display and the values in the settings tables. ->
X For exact error location, you need to use a suitable oscilloscope or special software for
analysis of the dynamics.
C&P20A
Axis Control Star Axis Control System
Student Guide (FSE) SIPLACE X Series and X4I
C&P20A Edition 01/2009 EN
292
7.7.3.4 Signal Example with the Vnom. Output
The star axis dynamics are checked in the permanent star step mode. A motor phase current is emitted
at the Vnominal output of the axis test box.(control signal 1). The uncommutated current setpoint signal
(signal 3) shows no increased friction values for the axis.
The positioning time for the star axis is 28.5 ms +/-0.5 ms C&P20A.
7-55: Dynamic signals for star axis of C&P20A
Legend
The signals from top to bottom:
Star phase motor current Iu measured at
Vnom output
Uncommutated current signal Vreg (or PIN at
axis adapter)
Deviation of position
End signal
NOTE: C&P20A
If these dynamics should be significantly slower or if the uncommutated current signal should
deviate considerably, check the star axis mechanics for damage or the servo amplifier/axis
controller (other boards connected to the star) for electrical damage.
C&P20A
Axis Control of Z Axis Axis Control
Student Guide (FSE) SIPLACE X Series and X4I
Edition 01/2009 EN C&P20A
293
7.7.4 Axis Control of Z Axis
7.7.4.1 Checking the Z Axis Dynamics
7.7.4.2 Measurement Setup
The Z-C&P20A positioning time for 15 mm is 20 ms in both directions. The positioning time for the 0-
20000 digit (10 mm) range should be 16.7 ms.
Position the gantries so that the Z axis is above the calibration component position.
7-56: Axis control of Z axis
The C&P20A Z axis is driven via a 3~ AC linear
motor. This activation is via two control signals
phase from the VC3 controller Itarget "W" and I-
target "U". The intermediate circuit voltage is
approx. 24V.
Legend
1. Axis Controller Board A364
2. Control signal I nom "W"
3. Servo amplifier
4. LEDs on servo board:
– Power supply ON
– Servo enable, if the enable signal has
been received 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.
5. 3~ AC (DC) motor.
6. Between the motor and the incremental
encoder there is a fixed mechanical
connection.
7. Incremental encoder: transmits the exact
position of the axis (track signals).
8. Elastic mech. connection (belt) and light
barrier down, for fast recognition of the lower
position.
The servo board controls the 3-phase AC (DC)
motor directly.
NOTE:
The measurement procedure follows the same preparations and procedures as for the star axis.