bp filter
critical
freq. calc.
Displays the critical frequency calculated from the motor/filter
data. This frequency is filtered by the bandstop filter from the
current signal.
The default value = 0 (over dr64) means, the automatically cal-
culated critical frequency is taken from dr64.
Since the critical frequency decreases with the output fre-
quency, it is reasonable to parameterize e.g. dr65 = dr64 - fn/2.
Degree of the quality of the filter. Default value =0.5. The
higher the value, the more narrowband the filter chracteristic.
To consider that the critical frequency decreases with the out-
put frequency, a broadband filter is useful, so dr66=0.1 should
be parameterized.
bp filter
coeff
index /
bp filter
coeff
These parameters are only available for download compatibility
with old lists. The content is identical with ds17.
The value of ds09 + 1 corresponds to the subindex of ds17.
bp filter
coeff[1]..
bp filter
coeff[9]
The default value for ds17[1] is the value 131068 (over dr-
para).
That means: The filter parameters of the band-stop filter are
automatically calculated from the dr parameters for the param-
eterised frequency (dr65 bp filter frequency set) and the re-
quested quality (dr66 bp filter q-factor).
Alternatively, the filter coefficients can be preset directly via
ds17 . Thereby the filter can be adjusted with any characteris-
tic.
Band-pass filter activation
Activate the bandpath filter in ds04 bit 3 "bandpath filter = on“!
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