Description
Operating as a high-performance motor control solution for heavy-duty industrial systems, the FR-A840-110K-1 is a premium three-phase variable frequency drive (VFD) within the Mitsubishi Electric FR-A800 series. Designed to deliver superior speed and torque regulation, this robust inverter features built-in FM terminal monitoring capabilities, real-time sensorless vector control, and advanced energy-saving profiles. Engineered to withstand challenging industrial environments, it provides reliable excitation control for both standard induction motors and permanent magnet motors, maximizing operating efficiency across complex processing systems.
Features
- Advanced Real-Time Sensorless Vector Control (RSV) for high-accuracy speed and torque performance.
- Integrated FM terminal interface providing dynamic pulse-train monitoring output for operational parameters.
- Optimum Excitation Control for minimized power consumption under variable load profiles.
- Built-in RS-485, RS-422, and RS-232 serial communication interfaces supporting industrial protocols.
- Comprehensive system protection mechanisms, including overcurrent, overvoltage, overload, and thermal protection.
Applications
- Heavy-duty pumps, fans, and ventilation blower systems.
- Industrial conveyors, gantry systems, and material handling lines.
- High-capacity compressors, extruders, and mixing machinery.
- Water treatment facilities and municipal pumping stations.
- Mining, metallurgy, and heavy manufacturing machinery.
Technical Specifications
| Parameter |
Specification |
| Manufacturer |
Mitsubishi Electric |
| Model / Part Number |
FR-A840-110K-1 |
| Series |
FR-A800 Series |
| Applicable Motor Capacity |
110 kW |
| Input Voltage Class |
Three-phase 400 V AC |
| Rated Input Voltage Range |
Three-phase 380 to 500 V AC (50 / 60 Hz) |
| Output Rated Current |
216 A |
| Output Capacity |
165 kVA |
| Communications |
RS-232 / RS-422 / RS-485 |
| Height |
740 mm |
| Width |
465 mm |
| Depth |
300 mm |
| Shipping Weight |
72 kg |
Connections and Interfaces
| Terminal Name |
Function Description |
| R/L1, S/L2, T/L3 |
Three-phase AC power input terminal connection |
| U, V, W |
Three-phase AC output terminal connection to motor |
| FM Terminal |
Analog pulse train monitor output (frequency, current, etc.) |
| RS-485 Terminal |
Serial communication interface for Modbus and automation network control |
| PE |
Protective Earth grounding point |
Installation Guidelines
-
Mounting: Mount vertically inside a well-ventilated control panel. Ensure a minimum clearance of 10 cm above and below the drive to facilitate proper airflow.
-
Environmental Conditions: Maintain ambient operating temperature between -10 degC and +50 degC (non-freezing, non-condensing).
-
Shielding & Grounding: Always ground the drive securely using the designated PE terminal. Use shielded motor and control cables to suppress electromagnetic interference (EMI).
Compliance and Certifications
- CE Mark
- UL Listed
- cUL Listed
- RoHS Compliant