Mitsubishi MR-J3-40B Servo Driver MRJ340B

Description:

The Mitsubishi MR-J3-40B Servo Drive is used in industrial motion control systems to provide precise control of servo motor speed, torque, and positioning via high-speed network communication. Commonly installed in CNC machines, robotics, and automated production lines requiring synchronized multi-axis control. Maintenance teams, OEMs, and system integrators use this part for repair, retrofit, and replacement of servo drive units.

Applications:

The Mitsubishi MR-J3-40B is widely used in advanced automation systems such as CNC machining centers, semiconductor equipment, packaging machines, and robotic systems where high-speed communication and precise motion control are essential. It supports network-based control architectures, enabling efficient coordination of multiple servo axes in complex industrial processes.

Technical Specifications:

• Manufacturer Part Number (MPN): MR-J3-40B
• Brand: Mitsubishi Electric
• Product Type: Servo Drive (Amplifier)
• Series: MELSERVO-J3 Series
• Rated Output Power: 400 W
• Input Voltage: 200–230V AC
• Control Method: Position, Speed, and Torque Control
• Communication Interface: SSCNET III (fiber optic network)
• Compatible Motors: Mitsubishi HF / HG Series Servo Motors
• Feedback System: High-resolution encoder feedback
• Cooling Method: Forced Air Cooling
• Mounting Type: Panel Mounted
• Application: Networked multi-axis motion control

Common Replacements:

• Mitsubishi MR-J4-40B
• Mitsubishi MR-J3-60B
• Mitsubishi MR-J2S-40A