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STR4/8 Hardware Manual
920-0030J
5/12/2015
At lower step resolutions such as 200 steps/ rev (full step) and 400 steps/rev (half step), motors
run a lile rough and produce more audible noise than when they are microstepped (2000
steps/rev and beyond). e STR drives include a feature called “microstep emulation”, also
called “step smoothing”, that can provide smooth motion from coarse command signals. If you
select “200 SMOOTH” or “400 SMOOTH”, this feature is automatically employed to provide
the smoothest possible motion from a less than ideal signal source.
Because a command lter is used as part of the step smoothing process, there will be a slight
delay, or “lag” in the motion. If this delay is objectionable for your application, please choose
the non-ltered seing “200” or “400”. e chart on the next page shows an example of the
delay that can occur from using the step smoothing lter.
567
20000
567
12800
567
5000
567
2000
567
400
SMOOTH
567
400
567
200
SMOOTH
567
200
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