A simple vector drive is fairly accurate but does not use much feedback from the motor, whereas a PWM drive has tighter control and more feedback from the motor operations.

Question

Quizplus · Accepted Answer

A simple vector drive does use feedback from the motor to control speed and torque accurately, whereas a PWM (Pulse Width Modulation) drive primarily controls the motor by varying the pulse width to adjust the voltage and current to the motor, which doesn't inherently imply more feedback from the motor operations.

A Simple Vector Drive Is Fairly Accurate but Does Not