The self commissioning of high performance servo drives for precision mechanical systems

The authors discuss the complex problems that must be overcome during the commissioning process of high-precision servo systems and report the progress made to date on the self-commissioning of high-precision mechanical systems to ensure that they are tuned correctly to give the best possible dynamic performance. The results of two self-commissioning strategies are discussed and compared to the tuning parameters set by an experienced commissioning engineer. The resonance method has proved to be unsatisfactory in some situations, since it requires many programmable parameters and a skilled commissioning engineer to assess a suitable scaling factor to achieve stability. It was found not suitable for the coordinate measuring machine, where its repeatability was limited. The position error method has proved to be satisfactory on the test rig and on the coordinate measuring machine. >