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 motor shaft needs to start moving at all times during the ramp-up process. This means that in case of motors with some load on the shaft, as well as motors with high cogging torque, the current used to ramp up the motor might have to be increased, as high as needed to keep the shaft moving. Start with 10% of the rated current of the motor, and increase by increments of 10% of the rated current until the motor shaft is in continuous motion during the entire ramp-up process.
#define USER_MOTOR_RES_EST_CURRENT (1.0) //increase in 10% steps as needed