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 initial slope, when the current builds up to the specified current, is set by the current used for the resistance estimation for every second. For example, consider a resistance estimation current of 1 A configured as follows:
#define USER_MOTOR_RES_EST_CURRENT (1.0)
And -0.5 A for the inductance estimation configured as follows:
#define USER_MOTOR_IND_EST_CURRENT (-0.5)
With these two configurations, it will take a total of 0.5 s to build up 0.5 A of current into the D-axis, as shown in Figure 7-24.