Operating electric motor supplied by frequency converter involves storing frequency and amplitude values in learning cycle, applying voltage corresponding stored values in manufacturing

摘要

The method involves setting the amplitude of the voltage fed to the electric motor depending on the frequency so that a defined relationship is maintained between the frequency and the amplitude of the voltage, storing frequency and amplitude values at defined intervals in at least one learning cycle and applying a voltage to the motor in accordance with the stored values during manufacturing. An Independent claim is also included for the following: a controller for implementing the inventive method.