Mitsubishi MR-J4-60B4-RJ AC Servo Amplifier for MELSERVO MR-J4 Series

The Mitsubishi MR-J4-60B4-RJ (MR-J4-60B4-RJ) is an AC servo amplifier engineered for motion control applications within the MELSERVO MR-J4 series. Operating on a 400 V class power supply, this unit supports a three-phase AC input voltage range of 380 V to 480 V AC (including 400 V, 415 V, and 440 V AC) or a DC input supply of 283 V to 340 V DC. It features built-in SSCNET III/H high-speed communication capability, enabling synchronized multi-axis control and rapid communication over optical fiber networks. Designed for demanding automation environments, the drive includes a built-in dynamic brake, an integrated regenerative braking resistor, and compatibility with external safety units. The amplifier provides an IP20 degree of protection and is rated to operate reliably within an ambient operating temperature range of 0 to +55 degrees Celsius. This servo drive is used across diverse industrial machinery and automated manufacturing systems requiring precise velocity, positioning, and torque control.