Terminal resistance interface circuit for servo controller

Abstract

The invention discloses a terminal resistance interface circuit for a servo controller. The terminal resistance interface circuit comprises a first welding point and a communication interface, wherein the first welding point is connected with a first resistor, a second resistor and a fourth resistor; the other end of the first resistor is connected with a voltage input end, the other end of the second resistor is connected with a second welding point, the other end of the second welding point is also connected with a third resistor and a sixth resistor, the other end of the third resistor is connected with a voltage input end, the other end of the sixth resistor is connected with a third welding point, the third welding point is also connected with a fifth resistor and an eighth resistor, the other end of the fifth resistor is also connected with a fourth welding point, the fourth welding point is also connected with the other end of the fourth resistor and a seventh resistor, and both the other ends of the seventh resistor and the eighth resistor are grounded; and the welding points are welded on the pins of the communication interface. According to the terminal resistance interface circuit disclosed by the invention, the circuit does not need to be separately designed for each operating mode, universal interface circuits can be achieved, and thus the production can be simplified, and the use can be facilitated.

Description

technical field [0001] The invention relates to the field of communication interfaces, in particular to a terminal resistance interface circuit for a servo controller. Background technique [0002] Servo controller is an important part of modern motion control and is widely used in automation equipment such as industrial robots and CNC machining centers. Especially the servo controller used to control AC permanent magnet synchronous motor has become a research hotspot at home and abroad. Current, speed, and position closed-loop control algorithms based on vector control are generally used in the design of AC servo controllers. Whether the speed closed-loop design in the algorithm is reasonable or not plays a key role in the performance of the entire servo control system, especially the speed control performance. [0003] In large-scale industrial equipment, in order to ensure productivity and processing quality, in addition to high positioning accuracy, good fast response ...

AI Technical Summary

Problems solved by technology

[0003] In large-scale industrial equipment, in order to ensure productivity and processing quality, in addition to high positioning accuracy, good fast response characteristics are also required, that is, the response to the tracking command signal is required to be fast, so the communication capability of the driver is required. High, for different communication requirements, the communication interface needs to work in different states. However, the existing driver communication interface circuit needs to design circuits separately for each communication mode, and the interface circuit cannot be used universally. The production is more complicated and the use is more troublesome.

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