The Mitsubishi FR-F820-5.5K-1 is a 3-phase variable frequency drive from the FREQROL F800 series, purpose-built for fan and pump applications where energy efficiency and reduced harmonics are critical. It operates with 200-240VAC 3-phase input, delivering 5.5kW (7.5HP) rated power. The F800 series features an optimized variable torque V/F pattern specifically designed for centrifugal fans, blowers, and pumps, delivering substantial energy savings compared to across-the-line operation. Output frequency spans 0.2 to 590Hz with advanced excitation control for induction motors. Built-in Modbus RTU communication (-1 suffix) enables BACnet and Modbus integration for building automation systems. With IP20 protection, it is suitable for HVAC control panels, cooling tower fans, water circulation pumps, air handling units, and industrial exhaust systems where reliable variable speed control translates directly to energy cost reduction.
**Q: What is the difference between F800 and A800 series?**
A: The F800 is optimized for variable torque applications (fans, pumps, blowers), featuring built-in PID control, BACnet support, and optimized energy-saving patterns for centrifugal loads. The A800 is designed for constant torque applications (conveyors, hoists, mixers) with higher overload capacity (150%/200% vs F800's 120%).
**Q: Does the F800 support PID control for pump pressure regulation?**
A: Yes, the F800 series includes built-in PID control functionality, allowing direct connection of pressure/flow sensors for closed-loop pump control without an external controller.
**Q: What communication options does the "-1" suffix indicate?**
A: The "-1" suffix indicates the base Modbus RTU/RS-485 communication model. Optional communication cards can add Ethernet/IP, CC-Link, PROFIBUS, or BACnet/IP for building automation integration.
**Q: Is the F800 suitable for constant torque applications?**
A: While the F800 can technically run constant torque loads in V/F mode, it is not optimized for them. For constant torque applications (conveyors, hoists, extruders), Mitsubishi recommends the A800 series which offers higher overload ratings.
**Q: Can this 200V-class drive run on 400V supply?**
A: No. For 400V (380-480VAC) supply, use the FR-F840 series (400V class) instead. The F820 is specifically designed for 200-240VAC input.
