Abstract
Mechatronic servo system design for industrial robot manipulators and NC machine tools are usually carried out by engineers based on their experiences in cut and try techniques and/or intuitive methods. This paper describes the relationship between the inertia of the servo motor and the load for the optimum selection of motor and servo controller parameters. The method is based on the sixth order model of the industrial servo systems with torque filter. The proposed method was experimentaly evaluated by use of an industrial DC servo motor.