MR-J2S-20B1

The Mitsubishi Electric MR-J2S-20B1 is a servo amplifier from the MELSERVO-J2 super series. It is engineered to provide excellent performance and to control compatible servo motors with a high degree of precision. It operates on a single-phase power supply voltage rating of 100 to 120 Volts AC with 50/60 Hertz frequency. It uses a serial bus connection (SSCNET) to communicate with a servo system controller or comparable device, and this allows the MR-J2S-20B1 servo amplifier to read position data directly for accurate operation. The speed and rotation direction of the connected servo motor can be precisely controlled using information from a command unit, enabling precise placement. A clamp circuit limits the torque of the MR-J2S-20B1 servo amplifier to prevent overcurrent caused by unexpected acceleration, deceleration, or overloads, thus protecting the primary circuit's power transistor. It also supports RS-232C serial connections, which makes it easy for the users to change parameters, run tests, and monitor the status display. The MR-J2S-20B1 servo amplifier controls motor operation precisely with a sine-wave pulse width modulation (PWM) control system and a current control system. Its protective features include overload shut-off (electronic thermal relay), overcurrent shut-off, regenerative overvoltage shut-off, overload shut-off, undervoltage, instantaneous power failure protection, overspeed protection, and excessive error protection. There are also encoder fault protection, regenerative fault protection, servo motor overheat protection, and regenerative fault shut-off protection features. It has a self-cooled and open enclosure structure. The MR-J2S-20B1 servo amplifier operates in a temperature range of 0 to 55 degrees Celsius and has a storage temperature range of -20 to 65 degrees Celsius. The MR-J2S-20B1’s dimensions are 168mm in height, 50mm in width, and 135mm in depth, and it weighs approximately 0.7 kg.