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Chapter 4
Measurement Definition
FFT
144
Tracking filters are used to provide real-time magnitude and phase measures of
shaft-speed relative signals. Each tracking filter applies a -48 dB/octave band
pass filter that is centered on the specified order frequency. The module
measures the magnitude of each filtered signal and, when whole integer orders
are specified, the phase of the filtered value.
For non-multiplexed module personalities, tracking filter measurements
update at a rate of not slower than every 40 milliseconds. See
page
97.
This page is used to define the FFT measurement configuration for the
channel.
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
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