Hardware 4.12, firmware 3.40, FOC, ABI encoder, 350kV motor
Hi forum !
I'm looking for guidelines / advise on tuning speed controller for smooth operation in relatively low speed range (500-1000RPM) with varying load.
With default wizard-generated parameters I'm seeing uneven speed and practically no torque response to load - see screenshot below.
Thanks for any help
Your motor is running at 0.3% duty cycle. That is too little. You have a 25V battery and want .75V to end up on the motor. Regulation is difficult at such a big ratio.
A motor with a lower KV value would probably work better.
That said, maybe the current situation can be improved. There are some PID settings for speed control that are not automatically adjusted. Just look up how to do a PID parameter adjustment and try going through the procedure.
Thanks, Roger.
The stability is significantly improved after I fixed the encoder wobble (turns out the magnet wasn't well fixed and centered). I'l also look at PID settings now.