The Mitsubishi FR-A840-00052-2 is a 3-phase variable frequency drive (VFD) from the FREQROL A800 Plus series, designed for high-performance industrial motor control. It operates with 380-500VAC 3-phase input, delivering 1.5kW (2HP) in normal duty mode with 4A rated current, and supports heavy-duty applications up to 5.2A. Output frequency range spans 0.2 to 590Hz, making it suitable for a wide range of induction and permanent magnet motor applications. The -2 suffix indicates PROFIBUS communication capability for integration into industrial fieldbus networks. With IP20 protection rating, it is designed for cabinet installation in manufacturing, material handling, HVAC, pumps, fans, and conveyor systems. The built-in FR-DU08 operator panel provides local configuration and monitoring, while advanced features including auto-tuning, vector control, and energy-saving operation optimize both performance and efficiency.
**Q: What is the difference between FR-A840-00052-2 and FR-A840-00052-E1N6?**
A: The -2 suffix model features PROFIBUS communication, while the E1N6 model features Ethernet/IP communication. Both share the same power ratings (1.5kW ND, 4A). The choice depends on your plant's fieldbus protocol preference.
**Q: What is the input voltage requirement?**
A: The FR-A840-00052 operates on 380-500VAC 3-phase supply (nominal values: 400V/415V/480V). It is not compatible with single-phase input.
**Q: Can this drive run permanent magnet (PM) motors?**
A: Yes, the FR-A800 Plus series supports both induction motors and permanent magnet (IPM/SPM) motors through its advanced vector control algorithms with auto-tuning capability.
**Q: What is the maximum output frequency?**
A: The output frequency range is 0.2 to 590 Hz, enabling high-speed motor applications up to approximately 35,000 RPM on a 2-pole motor.
**Q: Is a braking resistor required?**
A: The drive includes a built-in braking transistor. An external braking resistor (sold separately) is recommended for applications requiring rapid deceleration or frequent stops.
**Q: What are typical applications for this VFD?**
A: Common applications include industrial conveyors, pumps, fans, HVAC systems, material handling equipment, mixers, agitators, and general-purpose industrial machinery requiring precise speed control.
