The Mitsubishi MR-J3-40A is a high-performance digital AC servo amplifier from the MELSERVO-J3 series, designed to provide precise control and reliability in industrial automation applications. Operating within a voltage class of 200V, it delivers a rated output of 0.4 kW, suitable for both three-phase and single-phase power supplies. The servo amplifier supports three-phase AC input ranging from 200 to 230V at 50/60Hz, with a rated current of 2.8A, and single-phase AC input at 200 to 230V, also at 50/60Hz, with a rated current of 2.6A. Its compact design measures 69 x 168 x 115 mm and weighs 2.8 kg, making it ideal for installations where space is limited. The MR-J3-40A features a built-in dynamic brake and utilizes a sine-wave PWM control system with current control, ensuring smooth and efficient operation. It offers multiple protection functions, including overcurrent cut-off, regenerative overvoltage cut-off, overload cut-off (thermal relay), servo motor overheat protection, encoder abnormality protection, regenerative abnormality protection, undervoltage protection, instantaneous power outage protection, overspeed protection, and excessive error protection. The servo amplifier supports position, speed, and torque control modes, with a maximum input pulse frequency of 1Mpps when using a differential receiver and 200kpps when using open-collector output. It also features an encoder resolution of 262,144 pulses per revolution, providing high-precision feedback for accurate positioning. The MR-J3-40A is suitable for a wide range of industrial automation applications, offering versatility and high performance.
