Parameters 175
24
24 Speed reference
conditioning
Speed error calculation; speed error window control
configuration; speed error step.
See the control chain diagram on page 448.
24.01 Used speed reference Displays the ramped and corrected speed reference
(before speed error calculation). See the control chain
diagram on page 448.
This parameter is read-only.
-
-30000.00… 30000.00
rpm
Speed reference used for speed error calculation. See par.
46.01
24.02 Used speed feedback Displays the speed feedback used for speed error
calculation. See the control chain diagram on page 448.
This parameter is read-only.
-
-30000.00… 30000.00
rpm
Speed feedback used for speed error calculation. See par.
46.01
24.03 Speed error filtered Displays the filtered speed error. See the control chain
diagram on page 448.
This parameter is read-only.
-
-30000.0… 30000.0
rpm
Filtered speed error. See par.
46.01
24.04 Speed error inverted Displays the inverted (unfiltered) speed error. See the
control chain diagram on page 448.
This parameter is read-only.
-
-30000.0… 30000.0
rpm
Inverted speed error. See par.
46.01
24.11 Speed correction Defines a speed reference correction, ie. a value added to
the existing reference between ramping and limitation.
This is useful to trim the speed if necessary, for example
to adjust draw between sections of a paper machine.
See the control chain diagram on page 448.
0.00 rpm
-10000.00… 10000.00
rpm
Speed reference correction. See par.
46.01
24.12 Speed error filter time Defines the time constant of the speed error low-pass
filter.
If the used speed reference changes rapidly, the possible
interferences in the speed measurement can be filtered
with the speed error filter. Reducing the ripple with this
filter may cause speed controller tuning problems. A long
filter time constant and fast acceleration time contradict
one another. A very long filter time results in unstable
control.
0 ms
0…10000 ms Speed error filtering time constant. 0 = filtering disabled. 1 = 1 ms
25
25 Speed control
Speed controller settings.
See the control chain diagram on page 452.
25.01 Torque reference
speed control
Displays the speed controller output that is transferred to
the torque controller. See the control chain diagram on
page 452.
This parameter is read-only.
-
-1600.0…1600.0% Limited speed controller output torque. See par.
46.03
No. Name/Value Description Default
FbEq 16
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