Vector control accomplishes this by using current feedback from the motor. Current feedback is measured via current transformers inside of the VFD. Constant current readings and rapid calculations ...

VFD implementation and operation can often ... The lack of actual shaft position feedback in open-loop vector control necessitates the calculation of rotor position by other means ¡ª but the ...

typically there are two methods by which a VFD can control the speed of an electric induction motor: the vector control method and the volt/frequency (V/Hz) method. The vector control method is an ...

Vector Control (field-oriented control ... Multiple motor control means all motors connected to the same VFD will be controlled in unison. They will start and stop at the same time and all will follow ...