Simply put, the motion controller is a device that realizes the target of the predetermined motion trajectory by controlling the motion of the actuator and other equipment driven by the motor. It can be said that as long as there is a servo motor application, it is inseparable from the motion controller, which makes many industrial production equipment full of vitality with its unique flexibility and excellent motion trajectory control ability.
Motion control technology is developed on the basis of high performance and high speed microprocessor represented by digital signal processor dsp and large-scale programmable logic device fpga, which is a generalized numerical control device. The development trend of numerical control technology is the open numerical control system using motion controller.
With the further development of automation technology, the application of motion controllers (stepper, AC, DC) has been out of the machining industry, and is increasingly used in other industrial automation equipment control, such as electronic machinery, woodworking machinery, textile machinery, printing machinery and many other industries. The development trend of the main numerical control technology is the use of “pc+ motion controller” open numerical control system, not only has a strong information processing ability, high degree of openness, accurate motion trajectory control, good versatility and other characteristics, but also to a large extent improve the accuracy of the existing processing and manufacturing, flexibility and ability to cope with market demand. The United States called it a new generation of industrial controllers, Japan said it will bring the third industrial revolution, and predicted that its application will be as common as the current plc.
Compared with traditional CNC devices, motion controllers have the following characteristics:
1, technology update, more powerful, can achieve a variety of motion trajectory control, is the replacement of traditional CNC devices;
2, modular structure form, can be easily combined with each other, the establishment of different occasions, different functional requirements of the control system;
3, the operation is simple, the motion control can be achieved by simple programming on the pc, and does not necessarily need special numerical control software.
To realize openness, interchangeability, portability and expansibility is the main research content of motion control technology. Has the following characteristics:
4, can easily connect with machine tools, robots and other controlled equipment;
5, a motion controller from the hardware can achieve one to more axis position, speed and trajectory servo control, from the software has perfect trajectory interpolation, motion planning and servo control functions;
6, it can quickly and easily establish high-level applications and machine tools, robots and other equipment control, testing and data exchange, development and use is simple;
7. Due to its open technology, it has the characteristics of convenient maintenance, expansion and upgrade.
The motion controller as an independent standard component can significantly shorten the development cycle of new products, which is conducive to users to create their own brand products. At present, due to the emergence of high-speed high-performance special microprocessor represented by dsp and the widespread popularity of pc, the development trend of open motion controller is to use dsp chip as the motion control processor, to use pc as the information processing platform, and the motion controller is embedded in pc in the form of a card, that is, “pc+ motion controller” mode. In this way, the pc’s information processing ability and open characteristics are organically combined with the motion trajectory control ability of the motion controller, which has the characteristics of strong information processing ability, high openness, accurate motion trajectory control and good versatility. The numerical control system using motion controller will become a new generation of numerical control technology development trend, and the motion controller will become the core of the future numerical control system.
Post time: Jan-04-2024
