Hi Everyone,
I have a question related with Encoder speed measurement. I have a quadrature encoder in my system and I read the speed successfully. But there are only 60 teeth on motor side. Therefore I have little problem while reading low speeds and this problem affect my motor control at low speeds.
I am using f28377d in my control card and I am trying to control Induction Machine with v/f control. Does anyone have any suggestion to improve the control at low speeds?
To read the low speeds successfully, I tried to make register change in my control loop i.e. I set the QCAPCTL.UPPS register to 2 at start , and then change it to 4 when it goes over 120rpm. But in c2000 forum it is said that it is a bad idea that change the register dynamically.
Any comment would be appreciated.
Thank You
