Controlled servo drives are used in many areas of automation technology, robotics and handling systems as well as in the drive technology of production machines and machine tools. The requirements regarding dynamics, speed stability and rigidity necessitate ever increasing gain factors in the control loops. The position encoders used are an important factor in the control quality of the drive. The position resolution and the position error within one signal period are distinctly in the foreground. The selection of a certain encoder technology is strongly dependent on the accuracy requirements of the respective application. A flexible mounting situation on the motor as well as a uniform data interface to the control enable the integration of various encoder technologies, thereby supporting modular drive assemblies.
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