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
In order to remove the current from the motor windings, an intermediate state is run to ramp down the current flowing through the motor (Figure 7-36). This state is the RampDown state, with the duration set by the following in user.c file:
pUserParams->estWaitTime[EST_State_RampDown]=(uint_least32_t)(2.0*USER_EST_FREQ_Hz);
Figure 7-37, taken from the previous state, shows phase current being removed from the motor gradually to allow a smooth stop of the motor.