Mitsubishi MR-J3-40A1 Servo Drive MRJ340A1

Description:

The Mitsubishi MR-J3-40A1 servo drive is used in industrial motion control systems to precisely control speed, torque, and position of servo motors in automated machinery. Commonly installed in CNC machines, robotics, packaging equipment, and automated production lines across manufacturing environments. Maintenance teams and system integrators use this drive for system repairs, retrofits, and replacement of legacy servo amplifiers.

Applications:

The Mitsubishi MR-J3-40A1 servo drive is widely used in automation systems requiring high-speed response and accurate positioning. It is commonly found in CNC machining centers, pick-and-place systems, semiconductor equipment, and material handling systems where precise motion control and stability are critical to maintaining production efficiency and repeatability.

Technical Specifications:

• Rated output power: 0.4 kW
• Series: Mitsubishi MELSERVO-J3
• Input voltage: 1-phase 100 VAC (model A1 variant)
• Control method: Sinusoidal PWM / current control system
• Dynamic brake: Built-in
• Regenerative resistor: Built-in (model dependent)
• Feedback resolution: Up to 262,144 pulses/rev (high-resolution encoder support)
• Communication: USB and RS-422/485 interfaces
• Control modes: Position, speed, and torque control
• Protection functions: Overcurrent, overvoltage, overload, encoder fault, overspeed
• Operating temperature: 0°C to 55°C
• Cooling method: Fan or natural cooling depending on configuration
• Mounting: Panel mount design
• Weight: Approx. 2 lbs (0.9 kg)

Common Replacements:

• Mitsubishi MR-J4-40A
• Mitsubishi MR-JE-40A
• Mitsubishi MR-J3-40A