Mitsubishi Electric FR-A840-00126-2-60 A800 Series Inverter Drive

Description

Industrial motor speed control and torque optimization are managed via the FR-A840-00126-2-60 high-performance inverter drive, a core component within the Mitsubishi Electric A800 range. Designed for demanding applications requiring constant torque, this three-phase variable frequency drive offers precision speed regulation through real sensorless vector control and closed-loop vector control up to 400 Hz. The unit features backward compatibility with the older FR-A700 series, simplifying system upgrades without requiring complete mechanical redesigns.

The unit incorporates an integrated Mitsubishi L-Series PLC with up to 6K steps of program memory, allowing users to run custom control logic directly on the drive. For safety-critical environments, the drive is equipped with PLd and SIL2 safety standards as standard, which can be further expanded via specialized plug-in options. Program files and parameters can be password-protected to prevent unauthorized modification, ensuring secure operations in automated processing facilities.

Features

• Real sensorless vector control and closed-loop vector control capable of operating up to 400 Hz.
• Integrated Mitsubishi L-Series PLC functionality offering up to 6K steps of programmable memory.
• Built-in brake chopper on models up to 55kW for efficient regenerative braking management.
• Supports 24V DC control circuit input to facilitate parameter access, safety maintenance, and communication without main power.
• Equipped with a USB (Type A) port for rapid parameter copying and configuration backup.
• Plug-and-play compatibility with GOT2000 Series HMIs for direct monitoring and diagnostics.
• Integrated temperature sensor to monitor internal thermal conditions and optimize fan speed.

Applications

• Heavy industrial winding and tensioning control systems.
• Overhead cranes, hoists, and material handling gantries.
• Machine tool spindles and high-speed drilling axes.
• Variable-speed conveyor networks in logistics and manufacturing.

Technical Specifications

Installation Guidelines

• Mounting: Install vertically on a flat, vibration-free surface. Ensure adequate clearance around the drive heatsinks for efficient cooling.
• Wiring: Route control cables separately from main power and motor output cables to prevent electromagnetic interference.
• Grounding: Always establish a reliable low-impedance ground connection to the dedicated ground terminal.
• Control Power: Connect external 24V DC to the control terminal block if configuration or diagnostics are required while main 400V power is isolated.