SPRUHJ1I January 2013 – October 2021 TMS320F2802-Q1 , TMS320F28026-Q1 , TMS320F28026F , TMS320F28027-Q1 , TMS320F28027F , TMS320F28027F-Q1 , TMS320F28052-Q1 , TMS320F28052F , TMS320F28052F-Q1 , TMS320F28052M , TMS320F28052M-Q1 , TMS320F28054-Q1 , TMS320F28054F , TMS320F28054F-Q1 , TMS320F28054M , TMS320F28054M-Q1 , TMS320F2806-Q1 , TMS320F28062-Q1 , TMS320F28062F , TMS320F28062F-Q1 , TMS320F28068F , TMS320F28068M , TMS320F28069-Q1 , TMS320F28069F , TMS320F28069F-Q1 , TMS320F28069M , TMS320F28069M-Q1
SpinTAC Position Control controls both the position loop and the speed loop.
Position control is more complex than speed control. There is a -180° cross-over in the phase curve, where the gain margin is measured. SpinTAC Position Control gives a fairly good negative gain margin to tolerate system changes. Typically, this negative gain margin represents the degree to which the configured inertia value can be greater than the real system inertia if the inertia is measured incorrectly (see Figure 13-3).
Like speed control, position control is also subject to high-frequency resonant mode and noise, which limits the adjustable range of the controller gains in order to keep the system stable. These are general control design considerations for any type of controller.