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
Some applications, such as high-end security and conference room cameras operate at very low speeds (for example, 0.1 rpm) and require accurate and smooth position control to pan, tilt, and zoom. The motors that drive these cameras are difficult to tune for low speed and they usually require a minimum of 4 tuning sets to control both position and speed.
It can be difficult to overcome the system inertia at low speeds, which results in choppy movement at startup, and a shaky or unfocused picture. Figure 13-22 is an example of a very small position movement at a very low speed. SpinTAC is able to more accurately track the reference position resulting in smoother motion than the PI controller. SpinTAC Position Control is equally effective at overcoming system inertia at low speeds and high speeds, and results in very smooth low speed movements.