By the on/off of internal IGBT, variable speed drive (VFD) can adjust the voltage and frequency of the output power supply and provide the required power supply voltage according to actual needs of the motor, so as to regulate the motor speed and save energy.
With rich collection of VFD stock from top manufacturers such as ABB, Allen-Bradley, Chint, Emerson Nidec, Danfoss, HITACHI, Siemens, etc., and quality VFD China, OKmarts provides a variety of compatible replacements for obsolete VFDs.
VFD Repair and Replacement Tips
Any VFD failure (VFD capacitor failures, other component failures such as the main circuit, rectifier, dc-to-ac converter, etc) may result in serious damage to the motor. So it would be better not to use worn VFDs. In case of any variable speed drive repair, VFD display repair, it’s best to have certified professionals to do the work.