The Mitsubishi FR-E720-2.2K is a compact 3-phase variable frequency drive from the FREQROL E700 series, delivering 2.2kW (3HP) for industrial motor control applications. It operates with 200-240VAC 3-phase input with 11A rated current. Output frequency ranges from 0.2 to 400Hz with advanced vector control and V/F control modes. Built-in Modbus RTU communication via RS-485 enables direct integration with PLCs and HMIs. With IP20 protection, it is designed for cabinet mounting in manufacturing environments. Typical applications include conveyors, packaging machinery, small pumps, HVAC fans, food processing equipment, and textile machinery where reliable variable speed control is required at an economical price point.
**Q: Can this 3-phase input VFD be used with single-phase supply?**
A: No, the FR-E720-2.2K requires genuine 3-phase 200-240VAC input. Using single-phase power will cause an input phase loss fault. For single-phase supply, use the FR-E720S series or use a phase converter upstream.
**Q: What motor sizes does this 2.2kW drive support?**
A: It can control induction motors from approximately 0.4kW to 2.2kW (0.5HP to 3HP) in constant torque applications, or up to 3.7kW in variable torque (fan/pump) applications.
**Q: Is an external braking resistor required?**
A: The drive has a built-in braking transistor but no internal braking resistor. For applications requiring frequent deceleration or quick stops, an external braking resistor should be connected to the P/+ and PR terminals.
**Q: How does this E700 compare to the newer E800 series?**
A: The E700 is a mature, proven design with Modbus RTU as standard. The newer E800 series adds built-in Ethernet, enhanced PM motor control, and expanded safety functions. For basic V/F and simple vector control applications, the E700 remains a cost-effective choice.
**Q: What optional communication cards are available?**
A: The FR-E720 supports optional communication cards for CC-Link, PROFIBUS, DeviceNet, and LONWORKS through its option card slot, expanding beyond the built-in Modbus RTU capability.
