Application of Modal Analysis for Commissioning of Drives on Machine Tools

Commissioning is defined as a process that transfers machines and plants into the operational state. In order to parameterize the included control loops, information about the properties of the controlled systems are required. Here is an approach, carried out for a variety of axes e.g. in a machine tool demands a lot of time and therefore becomes a large cost factor. Since a modal analysis of the machine is typically performed during the commissioning of the machine, the resulting modal parameters can be identified and also be applied for the design of axis controllers.We present a method for this course of action. Therewith, a default parameter setting for all drive control loops of the machine can be found, even considering interactions between different machine components. The approach leads to a shortened commissioning of complex electromechanical axes in combination with a better controller performance without additional experiments or expert knowledge.