Research Of Muti-Axis Based On Ethernet Powerlink

In traditional line-shaft driver synchronous control system, units are synchronized to mechanical spindle through directly coupling with each other, which brings good synchronicities of control system, ensures the product quality. However, manufacturing and assembling error of mechanical components accumulate and transfer to the final execution unit; the flexibility of the system is poorer; line-shaft happen concussion phenomenon easily; Using one motor drag more load, the motor power is limited, which affects output torque for unit; load disturbance each other among units, it is hard to meet modern high-speed precision processing requirements.Shaftless drive technology provides a new solution for line-shaft system and a better way to overcome the shortcomings of mechanical line-shaft system. It has simple structure, high precision of transmission ratio and etc. It has extensive application in printing, textile, papermaking where request to realize multi-axis synchronization control. This topic takes for example the application of multi-axis controller in shaftless printing technology. This topic compares and analyses mechanical long axis, synchronous main reference and electronic long axis control strategy. Finally, electronic long axis control strategy is used in shaftless system. For such solution, based on motion controller, through constructing shaftless system to achieve multi-motor synchronous movement. In reference to design philosophy of general motion controller, the motion controller is based on ARM7 and FPGA core, constructing shaftless drive system based on the real-time industrial Ethernet—Ethernet Powerlink for servo system. Two main Topics are mentioned:one is the motion controller hardware system,designed to ensure the correct hardware logic, timing sequence and electrical control accuracy; the other is to realize real-time communication of servo system by Ethernet Powerlink, complete the basic function of shaftless printing production, and provide hardware platform for the process control. The main research:(1)analysis of main problem in synchronous Control, shaftless system architecture and control strategy; describing the application of the ELS and EPL in this essay. (2)development of shaftless system multi-axis motion controller. Especially analyzed hardware design and cooperation of the control module based on ARM7,communication module based on EPL and interface module.(3 development of the relevant drive, the functional function. especially analyzed software design for motor control in control module and software design for EPL communication module.(4)experiment.verify the communication capacity on EPL...