HS50_advance_level 2 - 第294页
07/2002 Editio n Student G uide HS -50 Advanc ed II 9 Z-Axis 34 =$ [LV *HQHUDO3UHS DUDWL RQV ➠ St a r t S I T E S T . ➠ T urn on the compr essed a ir supp ly . ➠ Prepare the me asureme nt setu p for the …
Student Guide HS-50 Advanced II 07/2002 Edition
9 Z-Axis
33
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ready for operation
enable output stage
effective current limit
error
tacho
P-gain
axis 0
axis 1
axis 2
measuring current of star - axis
changeover switch pressed down
end signal axis 0
end signal axis 1
end signal axis 2
interface
test adapter
axis test box
actual current
with RC - filter
current measuring of dp - axis and z-axis only
interface axis control card
interface axis tes
t box
track A track B zero pulse Vnom force end signal deviat. of pos.
dgt
zero pulse
end signal
axis 0
axis 1
axis 2
OFF
ON
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07/2002 Edition Student Guide HS-50 Advanced II
9 Z-Axis
34
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➠ Start SITEST.
➠ Turn on the compressed air supply.
➠ Prepare the measurement setup for the star-axis acoording to .
➠ Use standard nozzle 914.
➠ Set the oscilloscope according to the table below.
➠ Perform a head reference run.
NOTE
Use an RC - filter to record the current curve
In order to measure the actual current on the servo amplifier, connect only the actual current and
no *1'.
Measure the end signal on the measuring adapter of the axis control card, with the switch
activated.
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➠ Positioning the gantries, position the z-axis into free space.
6,7(67
➠ Select "C&P heads" ==> "Select head" ==>
"Axis functions" ==> "Select z-axis" ==> "Tacho adjustment" ==>
"Edit and accept values: Start position = 0; target position = 685; positioning mode = absolute;
waiting time = 300".
➠ If necessary, press the START button.
Student Guide HS-50 Advanced II 07/2002 Edition
9 Z-Axis
35
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– If the dynamics of the star are correct, each signal will appear as illustrated above.
– Nominal - positioning time: 685 dgts: 28 ms +
2 ms.
– Adjust the speed and the P-gain potentiomete alternately, so that you get the profil in
Fig. 9.6 - 5 .
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CH1 Vnominal DC 2.0 V/ DIV
CH1
negative
10% pre
5 ms/ DIV
CH2 deviat. of pos. DC 0.5 V/ DIV
CH3 actual current DC 5.0 V/ DIV
CH4 end signal DC 5.0 V/ DIV