Vibration damping and automatic commissioning of miniature servo drives with flexible load

For high performance requirements, P/PI-cascade feedback controlled miniature servo axes often provide insufficient damping of structural vibrations. The axis performance can be improved significantly by state space control extensions that are meanwhile available for commercial machine tool control systems. The benefit of additional load state feedback depends directly on the suitable state observation or capturing location in the machine structure. This contribution explains the state space control extension application for miniature drives and elucidates the achievable benefit by an exemplary linear servo drive.