Power electronics for synchronous servo motors and asynchronous motors. The POSIDYN® SDS 5000 servo inverter is a high-performance inverter for regulating torque, speed and position. It was designed for challenging servo tasks. In combination with STOBER synchronous servo geared motors or asynchronous geared motors this servo inverter provides a fine-tuned drive system. The POSIDRIVE® FDS 5000 frequency inverter offers innovation potential for feed and positioning drives where asynchronous servo axes are used. In combination with STOBER asynchronous geared motors this inverter provides an economically attractive drive system.