The RSGD series is a 75-mm-wide three-phase soft starter for ac induction motors up to 100 A. The self-learning algorithm has been adapted to work with different applications without the need to adjust the initial torque, resulting in an almost plug-and-play setup. The integrated electronic overload protection, PTC input and a number of built-in diagnostic functions help to protect the motor. The starter also is equipped with Modbus two-wire serial communication protocol, which can be interfaced to different PLCs for enhanced control diagnostics of the system status. Energy, voltage, current and other electrical variables can be communicated to a PLC for real-time motor condition monitoring.