FR-E820-0.4K-1 by Mitsubishi Electric

The FR-E820-0.4K-1 by Mitsubishi Electric is a compact frequency converter designed for general industrial applications. Belonging to the FR-E800 series, it is suitable for efficient control of small motors. Below is its core information:  

Technical Parameters and Functional Features  

1. Basic Specifications  

- **Power Rating**: 0.4kW (suitable for 0.4kW motor in ND mode, and supports 0.2kW in HD mode).  

- **Input Voltage**: Three-phase 200-240V (with ±10% fluctuation range), frequency 50/60Hz, compliant with North American market standards (208-230V).  

- **Output Capacity**: Rated current 3A (ND mode), overload capacity of 150% for 60 seconds and 200% for 3 seconds, supporting wide-range speed regulation (0.2-590Hz).  

- **Control Modes**: Supports V/F control, advanced flux vector control, sensorless vector control, etc., flexibly adapting to different motor types.  

- **Communication Interfaces**: Standard RS-485 interface supporting Modbus RTU protocol; optional Ethernet module (FR-E800-E model) enables industrial IoT connectivity.  

- **Safety Functions**: Complies with SIL2/PLd functional safety standards, with built-in overcurrent, overvoltage, overheat protection, and fault diagnosis functions.  how to remove circuit breaker from panel

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 2. Design Features  

- **Compact Structure**: Dimensions approx. 90x90x86mm, weight 0.55kg, supporting side-by-side installation to save space.  

- **Energy Efficiency and Reliability**: Adopts self-cooling design, IP20 protection level, and built-in metal corrosion detection system to monitor corrosive gases (e.g., hydrogen sulfide) and issue warnings.  

- **Intelligent Diagnosis**: Analyzes alarm causes via AI technology (Maisart), reduces downtime, and supports remote monitoring and batch parameter setting.  

Application Scenarios and Industry Adaptation  

 1. Typical Applications  

- **Small Motor Drive**: Suitable for speed control in fans, pumps, conveyors, etc., especially in industries like glass manufacturing and material handling.  

- **HVAC Systems**: Supports PM sensorless vector control to optimize energy efficiency and stability of air conditioning compressors.  

- **General Industrial Equipment**: Adapts to various automated production line needs through flexible parameter settings and expandable functions.  

2. Advantages  

- **High Cost-Effectiveness**: Delivers vector control performance in the 0.4kW power segment, supports inventory sharing, and reduces enterprise spare parts costs.  

- **Flexible Expansion**: Enhances functions via optional accessories (e.g., braking resistors, communication modules) to meet complex system requirements.  

Purchase Channels and Market Information  

1. Price Reference  

- International market price: Approximately 215-230 USD, with discounts for bulk purchases.  

2. Warranty Policy  

- Typically provides a 1-year warranty (based on purchase proof), covering repair or replacement for non-human-induced damage.  

Installation and Usage Recommendations  

1. Installation Guidelines  

- Install vertically to ensure heat dissipation, leaving at least 50mm space around. Use cables of specified specifications (e.g., 2.5mm² wires) for main circuit wiring and ensure good grounding.  

- Control circuit supports source/sink logic switching, directly connectable to PLC or other controllers.  

Parameter Settings  

- Initial parameters can be configured via the built-in operation panel (FR-PU07) or FR Configurator2 software, supporting batch writing and AI-assisted debugging.  

- Typical settings include: motor parameter self-learning, acceleration/deceleration time (recommended 0.1-300 seconds), torque limitation, etc.  

Maintenance Tips  

- Regularly clean the cooling fan and filter; replace capacitors every 2 years (depending on usage environment).  

- If corrosive gases (e.g., hydrogen sulfide) are detected, improve the installation environment or activate protective measures promptly.  

Comparison with Previous Models  

Compared with the FR-E700 series, the main upgrades of FR-E820-0.4K-1 include:  

1. **Communication Capability**: New optional Ethernet interface supports next-generation industrial network protocols like CC-Link IE TSN.  

2. **Safety Functions**: Integrates SIL2/PLd certification for direct use in safety loop design.  

3. **Diagnostic Technology**: Introduces AI fault analysis to shorten downtime.  

4. **Energy Efficiency Optimization**: Automatically reduces excitation current under light load to enhance energy saving.  

Precautions  

1. **Compatibility**: Confirm that motor parameters (e.g., number of poles, rated current) match the frequency converter to avoid overload operation.  

2. **EMC Compliance**: It is recommended to install a filter (e.g., FR-BIF) on the power supply side to reduce electromagnetic interference and comply with local EMC standards.  

3. **Spare Parts Replacement**: When replacing old models (e.g., FR-E720S), pay attention to pin definitions and parameter differences, and contact technical support if necessary.