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[...]... model, the various control properties of the mechatronicservosystem can be analyzed and they can be adopted in the design of the servo controller 2.1.1 MechatronicServo Systems (1) Structure of an Industrial MechatronicServoSystem Fig 2.1 illustrates the whole structure of a mechatronicservosystem As shown in this figure, the industrial mechatronicservosystem is the servosystem including the... in MechatronicServo Systems In order to understand the current mechatronicservosystem and develop servo systems with better performance than at present, this servosystem must be investigated from various points of view The discussion points are listed as below 1 2 3 4 Modeling of a mechatronicservosystem Performance of one axis in a mechatronicservosystem Performance of multiple axes in a mechatronic. .. discussion items, the analysis on mechatronicservosystem and its utilization are carried out 1.1 Emergence of MechatronicServo Systems 1.1.1 Control Pattern of MechatronicServo Systems The mechatronicservo system, as the control system satisfying the motion conditions of transfer axis of numerical control machine, was originally (about 1967) created when developing the DC servo motor Then, in 1975 by... when analyzing the one axis performance of mechatronicservosystem One is that the structure of current mechatronicservo systems are almost all software servo systems and they must be thought of coming from the sampling control systems Therefore, the data renewal time interval of control system is determined by sampling frequency In general mechatronicservo system, there exist same delay time and 0th... arm (2) Servo Controller of Industrial MechatronicServoSystem The block diagram of servosystem of each axis in a mechatronicservo system is a 13th order or higher high-order system strictly illustrated in Fig 1.1(refer to item 1.1.2) From Fig 1.1, the information of locus is not feedback in the servo controller From this 13th order model, the features of modeling from the point of the servo controller... of closed-loop control system Another is that, the upper controller seen from the servo system, i.e., the computer using for internal trajectory calculation of the controller, is performed in a time interval providing command given in the servosystem From the relation between this time interval and performance of the control system, the overall mechatronicservosystem performance of a mechatronic machine... performance of a mechatronicservosystem 10 1 Outline of MechatronicServo Systems (1) Proper Sampling Frequency In the middle of 1980s, microprocessor (CPU), i.e., digital signal processor (DSP) became cheaper These processors are equipped into closed-loop of servosystem Hence, servosystem is constructed and movement can be remarkably flexible Software servo systems were developed These servo systems were... action characteristic of mechatronicservosystem appropriately In an industrial field, determination of parameters of the servo controller is mostly based on the empirical rule of practician There is no mathematical model comprehensively expressing the mechatronicservosystem including all mechanism parts, servo motor, servo controller, etc Since the structure of mechatronicservo systems in industry is... servosystem adopted in the numerical control machine or industrial robot, is generally different from the servosystem introduced in the textbook of automatic control, which is very important when discussing the mechatronicservosystem Firstly, the control pattern assigned in mechatronicservosystem is illustrated The properties of current servosystem satisfying the control pattern and its utilization... of MechatronicServo Systems The mechatronicservosystem is the major theme studied in this book In particular, the servosystem adopted in an electric servo motor is explained in this chapter Several items of its utilization from the development stage to the present as well as its performances The so-called mechanism machine (called as mechatronicservosystem at the following), i.e., the servosystem . below. 1. Modelingofamechatronic servosystem 2. Performance of oneaxis in amechatronic servosystem 3. Performance of multiple axes in amechatronic servosystem 4. Command to servosystem The above. out. 1.1 Emergence of Mec hatronic Serv oS ystems 1.1.1 Control Pattern of Mechatronic Servo Systems The mechatronic servosystem, as the control system satisfying the motion conditionsoftransferaxis of numerical control machine, wasoriginally(about 1967). textbookofautomaticcontrol, which is very important when discussing the mechatronic servosystem. Firstly,the control pattern assigned in mechatronic servosystem is illus- trated.The properties of currentservosystem