Product Analysis: Mitsubishi FR-E520-0.4KN Inverter
The Mitsubishi FR-E520-0.4KN is a compact yet powerful Variable Frequency Drive (VFD) from the FREQROL-E500 series. With a rated output of 0.4kW and designed for 200V class operation, this inverter is the benchmark for general-purpose motor control. The «KN» version represents the international/European specification, featuring optimized terminal configurations and internal software designed for global industrial standards. It is primarily used to control the speed and torque of 3-phase induction motors in conveyors, fans, and small industrial pumps.
Precision Flux Vector Control
The FR-E520-0.4KN features Mitsubishi’s advanced Magnetic Flux Vector Control, which allows the motor to produce high torque (up to 150%) at low speeds (as low as 1Hz). This capability is essential for applications requiring a strong start-up under load. The inverter also includes integrated PID control, allowing for automated regulation of flow or pressure without needing an external controller. Its robust design is engineered for 24/7 industrial duty, utilizing high-grade cooling fans and long-life capacitors.
Key Technical Characteristics
- Part Number: FR-E520-0.4KN.
- Output Capacity: 0.4 kW (0.5 HP).
- Input Voltage: 3-Phase 200-240V AC.
- Output Frequency: 0.2 to 400 Hz.
- Overload Capacity: 150% for 60 seconds.
- Protection Rating: IP20.
- Braking: Integrated brake chopper (Resistor optional).
- Communication: RS-485 standard.
Advanced Integration and Safety
The FR-E520-0.4KN is designed with a user-friendly interface, featuring a digital dial that allows for rapid parameter adjustment. It includes over 10 protective functions, including over-current trip, over-voltage shut-off, and thermal protection for the motor. Its slim profile allows for space-saving mounting in control panels. The «KN» terminal layout facilitates clean and secure wiring, reducing the risk of short circuits in high-vibration machinery.
| Feature | Value |
| Starting Torque | 150% or more (at 1Hz) |
| Acceleration Time | 0.01 to 360 seconds |
| Mass | 0.7 kg |
Technical Note
When installing the FR-E520-0.4KN, ensure sufficient clearance for airflow to prevent thermal derating. For applications requiring extremely high precision, the unit can be interfaced with external encoders via optional cards. For optimal EMI compliance, always use shielded motor cables and ensure a common ground point.
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