You could just try it and see.I am going to ask where in the Centroid manual it says that it will still rigid tap with an F value by figuring out the pitch from the RPM/Feed.
Verify that your spindle encoder is working correctly, and that you have set Parameters 34 and 35 correctly.
Set bit 0 of Parameter 36 (i.e. set P36 = 1, assuming you don't need any of the other features) to select Rigid Tapping.
Run a G84 cycle that uses 'Q' and verify that it works correctly.
Run a G84 cycle that uses 'F' instead, and see whether it works correctly.