Notice if the drive is negatively influencing your engine, or if this drive is the best option
Variable frequency drives are industrial control equipment that allow the speed and torque of an associated rotating machine to be controlled. This is achieved by modulating the motor power signal. They receive the sine wave from the mains and rectify and attenuate it until a direct current signal is achieved. This direct current is then modulated through an inverter to achieve a square signal or a pulse train that excites the motor.
The modulated signal can vary in both voltage and frequency. Therefore, it is possible to control the speed and torque of the motor precisely. By adjusting to the actual load of the motor, in case of continuous torque applications, or by being able to control the speed of the motor in detail, drives have a significant advantage in controlling motors, but also in reducing electricity consumption. However, they are power-sensitive equipment. Furthermore, they can introduce harmonic distortions, or even deteriorate the insulation and/or performance of the associated motors if they are not correctly configured and/or selected.
It is possible to find associated to all types of rotary machines, from pumps, compressors or fans to engines in transport applications of materials.