Mitsubishi Electric MR-J2S-500B AC Servo Drive

The Mitsubishi Electric MR-J2S-500B AC servo drive amplifier delivers precise speed, torque, and position control for medium- to high-power Mitsubishi servo motors in CNC machines, robotic systems, automated conveyors, and other motion-control applications. With a 50 A rated output, it accepts 200–230 VAC, 3-phase power at 50/60 Hz and uses pulse train input with closed-loop encoder feedback for accurate, repeatable motion. Built-in fan cooling, panel-mount design, and an operating range of 0 °C to 50 °C (storage -20 °C to 65 °C) support demanding industrial environments, while protections for overcurrent, overvoltage, overheat, and short circuits help safeguard the drive. Communication is via Pulse/Direction input with optional fieldbus modules, and a run/alarm LED indicates status; common replacements include Mitsubishi MR-J2S-500A.