Rockwell Automation 1440-VAD02-01RA XM-123 Aeroderivative Module - Manual (Page 64)

Publication GMSI10-UM003D-EN-P - May 2010
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Bandpass Measurement Parameters
There are two instances of the bandpass measurement parameters, one for
each channel. Use these parameters to configure the characteristics of the
bandpass filter.
Bandwidth Enter the bandwidth for the Constant Bandwidth
filter. The bandwidth is a measure of the width of a
filter. Hz
Note: This value is used or enabled
only when Constant Bandwidth is
selected as the tracking filter type.
Constant Q The ratio of the bandwidth to the center frequency
(machine speed) remains the same.
Q Enter the Q value for the Constant Q filter. Q is the
measure of the sharpness of a filter Note: This value is used or enabled
only when Constant Q is selected as
the tracking filter type.
Tracking Measurement Parameters
Parameter Name Description Values/Comments
IMPORTANT
The bandpass measurement parameters are available for
the channel only when the Bandpass Filter is selected as
the filter measurement. Refer to Aeroderivative
Measurement Parameter on page 55.
Bandpass Measurement Parameters
Parameter Name Description Values/Comments
Minimum Frequency The "highpass corner frequency" or "low cutoff
frequency" of the bandpass filter. 25 to 1000 Hz
Maximum Frequency The "lowpass corner frequency" or "high cutoff
frequency" of the bandpass filter. 100 to 5500 Hz