Hi,
Is there a case that the motor rotates in reverse if setting to low or high by using the motor direction control pin FR and changing the phase from 120° to 180° ?
Best regards,
Kato
Hey Kato,
I'm sorry, I'm not sure I understand the question. Since I think you're interested in the conditions need to make a motor spin in reverse, I'm going to explain how to do that using the DRV10970. Please correct me if this is not the information you are interested in.
The only condition needed to spin the motor in reverse is to change the logical input of the FR pin. As shown in your picture and below, the FR will change the sequence that the DRV10970 with commutate. The "U phase is leading V phase by 120" phrase is used just to illustrate that the applied phase voltages are 120 degrees out of phase with each other where U will lead the sequence because the waveforms are periodic. The hall sensor configuration does not need to be changed. This behavior works in both the trapezoidal and sinusoidal commutation mode.
Let me know if this doesn't answer your question.
Best,
-Cole
