The Mitsubishi FR-E720-0.4K is an ultra-compact variable frequency drive from the FREQROL E700 series, designed for small motor control applications. It operates with 200-240VAC 3-phase input, delivering 0.4kW (0.5HP) rated power with 3A rated current. The E700 series is known for its compact footprint and high functionality in a cost-effective package. Output frequency ranges from 0.2 to 400Hz with advanced vector control for precise speed regulation. Built-in Modbus RTU communication via RS-485 enables integration into industrial networks. With IP20 protection, it is designed for cabinet mounting. Typical applications include small conveyors, packaging machines, textile machinery, small pumps and fans, and laboratory equipment where space and cost are critical constraints.
**Q: Can this drive operate on single-phase input?**
A: The FR-E720-0.4K requires 3-phase 200-240VAC input. For single-phase applications, use the FR-E720S series variant which accepts single-phase input while producing 3-phase output.
**Q: What is the maximum motor cable length for this drive?**
A: Generally up to 30 meters without output reactor. For longer cable runs (30-100m), install an output reactor or sine wave filter to prevent voltage reflection damage.
**Q: Does the E700 series support Modbus communication?**
A: Yes, the FR-E720 includes built-in RS-485 Modbus RTU communication as standard, enabling direct connection to PLCs, HMIs, and SCADA systems without additional option cards.
**Q: Is this drive suitable for fan and pump applications?**
A: Yes, the E700 series supports both variable torque (fan/pump) and constant torque applications with selectable control modes for optimized energy efficiency.
**Q: What is the difference between FR-E720 and FR-E740?**
A: FR-E720 is for 200V class (200-240VAC input), while FR-E740 is for 400V class (380-480VAC input). Both are part of the E700 compact drive family.
**Q: Can I use this VFD with a permanent magnet motor?**
A: The E700 series primarily targets induction motors. For optimized PM motor control, consider the newer FR-E800 series which has dedicated PM motor control algorithms.
