Novak HV4400 and 7XL BL Sensored System...

[GriffinRU]

Originally Posted by crazyjr

Ok thanks, i saw that but thought you needed a rotating assembly for the sensors, like the Revo Optidrive system. But if it runs on magnetic feedback, wouldn't it be similar to a sensorless except sensorless doesn't use a circut board to detect movement?

Sensoreless based on feedback from phases, which only exists when motor spins, while sensored feedback doesn't require rotation to point out rotors location.

Artur

[maxxdude1234]

Originally Posted by GriffinRU

Sensoreless based on feedback from phases, which only exists when motor spins, while sensored feedback doesn't require rotation to point out rotors location.

Artur

....And the slower the motor spins, the smaller the 'back emf', so the less easy it is for the controller to detect the rotors position - hence cogging at low speeds.