Variable frequency drives (VDF’s) are used in a wide range of industrial processes, water/wastewater management, HVAC, machinery OEM and other applications. They connect to a motor’s electrical supply and vary the frequency of the electricity powering the motor. This controls the motor’s performance and reduces the amount of energy the motor consumes.
VFDs have either an open or enclosed design. Open VFDs are standalone devices that mount in electrical cabinets or directly on the machine frame while enclosed VFDs are housed in a panel with additional controls that monitor the VFD and minimize motor downtime.