Servo system promises energy-efficient motion control

30 July 2013

The MELSERVO MR-J4 series of servo amplifiers, from Mitsubishi Electric, complete with associated positioning units, motion modules and integrated motion control systems are said to enable machine builders and end-users to improve productivity and reduce energy costs.

A variety of user-friendly functions have been included to boost performance while minimising the effort required for engineering and setting up servo systems.

The series features single, dual and triple axis amplifiers for improved economy, greater energy efficiency and reduced panel space requirements. The servos can all operate with rotary, linear and direct drive motors. In addition to saving space in the panel, engineering and commissioning time is reduced thanks to the ‘one touch’ auto tune function, which matches the machine mechanics to the servo system in a single operation. This function operates in real-time and is dynamic, so if the machine conditions change over time, the MR-J4 system tuning automatically adjusts.

Covering the range from 0.1kW to 55kW, MR-J4 servo amplifiers are available in two versions. The MR-J4A provides analogue and pulse train connections and is designed for conventional control systems and for speed, torque and closed-loop position control, while the MR-J4B comes with connectivity to the company’s SSCNETIII/H high performance servo network, meeting the needs of integrated automation systems where complex multi-axis motion control is required.