HS50_advance_level 2.pdf - 第321页

Stud ent Gu ide HS-5 0 Adva nced II 07/2 002 Ed ition 10 Star Axis 17  6 W DU$ [LV   *HQHUDO3UHS DUDW LRQ ➠ S tart S ITEST . ➠ T urn on the comp ressed air. ➠ Prepare th e measur ement set up for the st…

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07/2002 Edition Student Guide HS-50 Advanced II
10 Star Axis
16
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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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Student Guide HS-50 Advanced II 07/2002 Edition
10 Star Axis
17
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➠ Start SITEST.
➠ Turn on the compressed air.
➠ Prepare the measurement setup for the star - axis according to .
➠ Set the oscilloscope according to the table below.
➠ Perform a head reference run.
NOTE
Use an RC - filter to record the current curve
Measure the end signal on the adapter board "axis control card", (the lowest BNC socket), with
the switch activated.
Measure the nominal current of the star - axis on the "measuring adapter axis control card current
measure star" (Do not connect GND). 
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NOTE
An adjustment of the star - axis on the servo amplifier is not possible.
Adjustment parameters are preset by board VC10 Controller. This board is on the axis control card
1, or 2, 3 or 4. 
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➠ Select "C&P Heads" ==> "Select head" ==>
"Axis functions" ==> "Select star - axis" ==> "Continuous run, star" ==> "Input: Waiting
time 500 ms" ==> "Accept".
➠ If necessary, press the START button.
07/2002 Edition Student Guide HS-50 Advanced II
10 Star Axis
18
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– If the dynamics of the star are correct, each signal will appear as illustrated above.
–Nominal - positioning time:PVPV.
1 cycle = 12000 digits = 30°degrees.
NOTE
If this setting for the dynamics can not be reached, check the friction blocks on the star and the
mounting of the star while the drive is in its magnetic park position. 
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CH 1 Vnominal DC 5.0 V/ DIV
CH 4
positive
10% pre
10 ms/ DIVCH 2 deviat. of posit. DC 0.5 V/ DIV
CH 3 nominal current DC 5.0 V/ DIV
CH 4 end signal DC 5,0 V/ DIV
Sollwert /
Vnominal
Positionsabweichung
/
deviation of position
Stromsollwert /
nominal current
Endemeldung /
end signal