Hello,

I am trying to run the Motor Tuner on a Brushless DC Motor that I have.

It is a 24VDC, 0.6AMP (0.42AMP RMS), 500RPM, 15OZ-IN, 2 Pole Pair motor.

I determined the number of pole pairs by running a constant DC current through two of the motor's phases and counting the number of natural resting spots, which was 2.

Every time I run the Motor Tuner with the values above, I get stuck on the "Spin!" stage with either Motor Startup Faults or "Motor Tuner was not unable to spin your motor as expected..." errors.

I tried increasing the RPM on the information to 1000RPM or 2000RPM. This seems to give me a more precise inertia value, but I still get the errors on "Spin!". I also tried increasing the rated current to .85AMP RMS or 1AMP RMS, but all with the same results.

How can I get Motor Tuner to work with my motor?

Jacob,

When you do the Spin! stage does the motor begin to rotate? Is your motor able to transition into closed loop?

Your motor has a very low rated speed, you might try going into Motor Manager, clicking on the Speed Control tab and increasing the crossover speed found under the Startup section.