
-
+
+
+
+
Derivative
acceleration
compensation
Proportional,
integral
Derivative
Torque
reference
Actual speed
Speed
reference
Error value
Warning indications
A warning message,
will be generated if the autotune routine does not
complete successfully.
For further information, see chapter
.
Settings and diagnostics
Parameters:
25.33 Speed controller autotune
…
Events:
AF90 Speed controller autotuning (page 588)
■
Oscillation damping
The oscillation damping function can be used to cancel out oscillations caused by
mechanics or an oscillating DC voltage. The input – a signal reflecting the oscillation
– is selected by parameter
. The oscillation damping function outputs a sine
wave (
) which can be summed with the torque reference with a suitable gain
(
) and phase shift (
The oscillation damping algorithm can be activated without connecting the output
to the reference chain, which makes it possible to compare the input and output
of the function and make further adjustments before applying the result.
82 Program features
Содержание ACS880 N5700 Series
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