Demand more energy savings.
The SPI series of variable frequency drives are bidirectional DC-fed power inverters for the supply and control of AC motors. The inverter is supplied from a common DC bus drive lineup. A charging circuit is needed in case a connection to a live DC bus is required. The DC side charging circuit is integrated up to 75 kW (FR4–FR8) and external for higher power ratings (FI9–FI14).