Question About Low Pass Filters in PID-FF Controller

Hello All,

The default values for the PID-FF lowpass filters are:

PTCH/RLL_RATE_FLTT = 12
PTCH/RLL_RATE_FLTE = 0
PTCH/RLL_RATE_FLTD = 3

Looking at the FLTE value - does the default value of 0 indicate that the lowpass filter is set at 0Hz, disabling the PID rate error corrections (and the FF term dominates)? Or does the value of 0 just turn off the lowpass filter itself?

Thank you!

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