I saw that some of them come with controllers but must say that daunted me a little. Is it possible to simply attach a PWM output to the controller in order to control it. Similarly for the brake?
You reverse a multphase motor by reversing the current, the commutation is unchangedother than the reverse current sense to the relevant pair of windings. You can also think of this as 180 phase shift in the hall sensors (simply invert them all)