Mitsubishi Electric MR-J2S-10A1 Servo Amplifier

The Mitsubishi Electric MR-J2S-10A1 servo amplifier is an AC servo motor drive that powers and precisely controls low-power Mitsubishi servo motors in CNC machines, compact robotics, and light automation lines. It delivers approximately 100 W of output power with a rated output current of about 1.0 A from a 100 V AC, 3-phase supply at 50/60 Hz, using a pulse-train input with closed-loop encoder feedback to ensure accurate speed, torque, and position control. Built for reliability, it includes protection features for overcurrent, overvoltage, overheat, and short circuits, a built-in cooling fan, and panel-mount installation with an operating temperature range of 0°C to 50°C (−20°C to 65°C storage). Communication is via Pulse/Direction with optional fieldbus modules, and it features LED run/alarm indicators for quick status checks. Common replacements for this class include Mitsubishi MR-J2S-10A, Yaskawa SGDV-R90A01A (low-power servo drive), and Panasonic MINAS A5 Servo Drive 100 W.