Mitsubishi Electric MR-J2S-500B Servo Amplifier

The Mitsubishi Electric MR-J2S-500B is a 50 A AC servo amplifier drive designed to power Mitsubishi AC servo motors in CNC machines, robotic systems, packaging equipment, and other high‑performance motion control applications. It uses a pulse-train input with closed‑loop encoder feedback to deliver precise speed, torque, and position control from a 200–230 VAC, 3‑phase supply (50/60 Hz). Built for reliability, it features overcurrent, overvoltage, overheat, and short‑circuit protection, a built‑in cooling fan, panel‑mount installation, and an operating temperature range of 0°C to 50°C (storage -20°C to 65°C). The drive supports Pulse/Direction communication with optional fieldbus modules and is compatible with the Mitsubishi AC servo series, with MR-J2S-500A listed as a common replacement.