User Manual

IM_100.CCF.20170512-EN C45
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Using the Software PC/MAC – PID control
5. Gradually increase the P value on the axis to
be set. As soon as the axis begins to swing
independently (see adjacent illustration of
“monitoring”), leave the P value for the moment
and increase the D value until the axis no
longer swings by itself. Tap lightly on the axis
and test whether the axis begins to swing as a
result of external stimulus. If yes, increase the
D value a little. When you no longer feel or see
vibrations, test your result again via the
monitoring. To see the finest vibrations, you
can zoom in on the diagram in the dialogue
window using the slider.
6. Repeat step 2 until you can no longer reduce
the natural vibrations by increasing the D value.
If the D value is too high, it will at some stage
during the setting process cause high-
frequency vibrations. These can be easily felt
and heard. You have now determined the
maximum values for P and D.
7. Reduce both values again slightly, until you can
sense no more wobbling and no vibrations.
8. You can now increase the I value gradually. As
soon as you determine low-frequency
vibrations, reduce the value again, until you
can no longer determine vibrations.
9. Repeat the steps for the other axes
respectively.
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