Motor doesn't start with encoder

Tim Guiver · ‎2017-06-24

Posted on June 24, 2017 at 22:25

I'm using the SPIN3201 eval board and have had it working in sensor-less and Hall modes, but i'm looking for better low very low speed, < 10 rpm behaviour where the halls don't produce smooth torque.

I've attached a 1000 pulse quadrature encoder and from the monitor in ST Motor Control i can see RPM when i turn the motor by hand so i believe it correctly connect or it wouldn't report motion. However, i cant get the motor to move, the alignment step doesn't seem to do anything, as i understand it should drive one coil to pull the motor to a known position, but it doesn't, though it reports success in the ST Motor Control Monitor. Then when i try and start the motor i get nothing, no moment, no sounds, no volts on the terminals also no error.

Any one got any hints what i'm doing wrong?

Thanks

Tim

Francisco Cunha · ‎2017-12-14

Posted on December 14, 2017 at 20:40

Hello, I have the same problem, exactly how you described. Did you solve the problem?

Thanks

Francisco