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Variable frequency drives

SPI Active front end variable frequency drives

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).

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Core features of the SPI active front end VFD

  • Ease of use: Startup Wizard, customizable software, advanced capabilities and inputs, local/remote button, modular design, text display 
  • Space-saving design: Compact modular expandable design
  • Efficiency: Bidirectional/regenerative energy savings capabilities
  • Rugged and reliable: Same reliable control module and operating system as SPX, shared components for inverter and Active Front End for reduced spare

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