Tuning procedure for oscillation damping
Select the input by
26.53
Activate algorithm by
26.51
Set
26.57
to 0
Calculate the oscillation frequency from the signal (use
the Drive Composer PC tool) and set
26.55
Set
26.56
1)
Increase
26.57
gradually so that the algorithm starts to
take effect
Oscillation amplitude decreases Oscillation amplitude increases
Increase
26.57
and adjust
26.56
if necessary
Try other values for
26.56
Increase
26.57
to suppress the oscillation
totally
1)
If the phasing of a DC oscillation cannot be determined by measuring, the value
of 0 degrees is usually a suitable initial value.
Note: Changing the speed error low-pass filter time constant or the integration
time of the speed controller can affect the tuning of the oscillation damping
algorithm. It is recommended to tune the speed controller before the oscillation
damping algorithm. (The speed controller gain can be adjusted after the tuning
of this algorithm.)
Settings and diagnostics
Parameters: 26.51 Oscillation damping…26.58 Oscillation damping
output (page 304).
￭
Resonance frequency elimination
The control program contains a notch filter function for removing the resonance
frequencies from the speed error signal.
Settings and diagnostics
Parameters: 24.13 RFE speed filter…24.17 Damping of pole (page 280).
Program features 83
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