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
The SpinTAC Velocity Control also features feedforward. This allows for excellent profile tracking (see Figure 13-13). Feedforward tells the SpinTAC Velocity Control how fast it should be accelerating or decelerating. This allows the SpinTAC Velocity Control to react to profile changes much quicker than a PI controller. It results in less maximum error and less absolute average error.
The SpinTAC Velocity Control features reduced maximum error and absolute average error. This results in much improved tracking performance over a traditional PI controller. This results in less wasted motion and wasted energy while the controller is attempting and overacting to try and track the changing reference. This feature becomes even more important when combined with the disturbance rejection capabilities discussed in Section 13.4.5.2. If your system encounters a disturbance while tracking a changing speed reference, that could result in a large amount of overshoot and wasted energy or material.