July 2013 6.8 The control loop 819
Feed-rate
smoothing with
MP1522
In addition to the nominal position value filters, you can activate feed-rate
smoothing. This smoothes jerks caused by a change in the feed rate. This
reduces the machine's tendency to vibrate, without significantly increasing
the machining time.
An effective possibility for use is with machine oscillations under approx. 25
Hz. The advantage is that the feed-rate smoothing with MP1522 can dampen
the oscillation behavior complementary to the nominal position value filters,
which makes it possible to raise the limits of the nominal position value filters
again. This could result in shorter workpiece machining times.
It is principally recommended that the frequencies of the nominal position
value filters be set in dependency of the feed-rate smoothing.
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