Over modulation

When the required output voltage of the Clean Power VFD is higher than 85 % of the input voltage (typically when running over-synchronously). The output voltage is increased by over-modulation.

Some applications may face vibrations if the harmonics generated by the over-modulation are closed to the resonance frequency of the driven system.

Users have the possibility to minimize the vibrations by disabling the over-modulation function.

Setting

There is one parameter named Overmodulation.

Its value can be ON or OFF

Its default value is : ON (Over-modulation is active)