Mitsubishi Electric FR-A840-0.75K-1 FR-A800 Series Variable Frequency Drive Inverter

Description

Designed for high-performance motor control, the FR-A840-0.75K-1 represents Mitsubishi Electric's premier engineering in vector control and variable frequency drive technology. This three-phase inverter is engineered to deliver precise speed and torque control for asynchronous and permanent magnet motors, matching demanding industrial requirements. Operating on a three-phase 400 V class input, it provides a stable three-phase 380 to 500 V output tailored for 0.75 kW motor operations.

Integrating advanced communication interfaces such as RS-232, RS-422, and RS-485 as standard, this drive facilitates seamless integration with factory automation networks and PLCs. The rugged design and thermal management systems embedded within the FR-A840-0.75K-1 ensure continuous runtime in harsh industrial environments, making it a reliable component in modernized motion control architectures.

Features

• Real-time sensorless vector control capabilities for advanced speed precision and torque response.
• Integrated multi-protocol serial communication interfaces including RS-232, RS-422, and RS-485.
• Compact physical footprint optimizing control cabinet space efficiency.
• High overload capacity suitable for demanding startup torques and heavy-duty industrial machinery.
• Designed for operational compatibility with energy-saving PM (Permanent Magnet) synchronous motors.

Applications

• Conveyor systems and high-throughput material handling lines.
• Pumps, industrial fans, and blowers in water treatment and HVAC facilities.
• Extruders, mixers, and industrial centrifuges.
• Machine tool spindles and automated positioning systems.

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Mounting: Mount the VFD vertically on a flat, non-flammable vertical surface to ensure optimal thermal dissipation. Allow at least 50 mm clearance above and below the unit for airflow.
• Grounding: Ensure low-impedance grounding of the drive frame to the main system ground to prevent electromagnetic interference (EMI).
• Shielding: Use shielded motor cables and ground the shield at both the drive and motor ends to comply with local electromagnetic compatibility guidelines.
• Environmental Control: Keep ambient temperatures within -10 to 50 degC (non-freezing) and relative humidity below 95% non-condensing.

Compliance and Certifications

• CE (European Conformity)
• UL Listed
• cUL Listed