HS50_advance_level 2.pdf - 第341页

Stud ent Gu ide HS-5 0 Adva nced II 07/2 002 Ed ition 11 DP-Axis 19   $ GMXVWPHQW RI3*DLQ 6,7(67   ➠ Sele ct "C&P Head s" ==> "S elect head" ==> "Axis funct ions" ==…

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07/2002 Edition Student Guide HS-50 Advanced II
11 DP-Axis
18
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➠ Start SITEST.
➠ Turn on the compressed air supply.
➠ Prepare the measurement setup for the star-axis acoording to .
➠ 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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NOTE
If the P-gain is set too low, the deviation of position will sag and the end signal will be prolonged.
If the actual current is set too high, the end signal will be prolonged as well, the actual current and
the deviation of position will oscillate however. 
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➠ Select "C&P Heads" ==> "Select head ==>
"Axis functions" ==> "Select dp - axis" ==> "Tacho adjustment".
➠ Use the potentiometer "Tacho" on the servo board to adjust the displayed value on the station
monitor to 0V +/- 10 mV.
Student Guide HS-50 Advanced II 07/2002 Edition
11 DP-Axis
19
 $GMXVWPHQWRI3*DLQ
6,7(67 
➠ Select "C&P Heads" ==> "Select head" ==>
"Axis functions" ==> "Select dp - axis" ==> "Adjust P-gain".
➠ With the help of the ÇÆ arrow buttons, set a distance of 3600 dgts.
➠ If necessary, press the START button.
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➠ Adjust the P-gain, avoiding any oscillation of the current curve.
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CH1 Vnominal DC 2.0 V/ DIV
CH 4
negative
10% pre
10 ms/ DIV
CH2 deviat. of pos DC 0.5 V/ DIV
CH3 actual current DC 2.0 V/ DIV
CH4 end signal DC 5.0 V/ DIV
07/2002 Edition Student Guide HS-50 Advanced II
11 DP-Axis
20
NOTE
If the P-gain has been adjusted correctly, a positioning time of 48 ms + 5ms will be reached.
(See ) 
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NOTE
If the P-gain is set too high, the actual current will oscillate 
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CH1 Vnominal DC 2.0 V/ DIV
CH 1
negative
10% pre
10 ms/ DIV
CH2 deviat. of pos DC 1.0 V/ DIV
CH3 actual current DC 5.0 V/ DIV
CH 4 end signal DC 5.0 V/ DIV