Mitsubishi Electric MDS-B-SVJ2-04 Servo Drive

The Mitsubishi Electric MDS-B-SVJ2-04 is an AC servo drive amplifier from the MELDAS MDS-B-SVJ2 series, designed for CNC machines and high-precision industrial motion control systems. Typical applications include machine tools, CNC machining centers, and automated production equipment where precise servo control governs positioning, speed, and torque. This 0.4 kW drive accepts 200–230 VAC three-phase input at 50/60 Hz, delivering about 0.3 A continuous current and up to 2.8 A peak, with servo amplification for position, speed, and torque commands. It features overcurrent, overvoltage, and overheating protection, and most models include a built-in regenerative resistor for energy handling. The unit supports high-resolution encoder compatibility common in CNC systems and is panel-mountable for CNC cabinet integration, weighing roughly 0.96 kg. Note that the MDS-B-SVJ2-04 is a discontinued/legacy servo drive commonly replaced by Mitsubishi models like MR-J3-40B among other successors.