V/f control
V/f control is the standard operating method and is more than sufficient for most drive tasks. Here, the motor voltage (V) is adjusted proportionally to the output frequency (f). Accordingly, the magnetizing current of the motor is kept practically constant in a wide adjustment range.
This means a practically constant torque for the connected motor across the entire speed adjustment range. A reduced torque is only normally to be expected in the lower speed range due to the physical properties of the asynchronous motor.
This reduction in torque is compensated by a "Boost" function which is a feature of all Moeller frequency inverters, so that no limitations are experienced.
