基于PLC的数控定位控制系统研究

Study on Orientation Control System of NC Based on PLC

详述了用PLC控制步进电机实现数控系统的定位控制功能的方法,新型PLC的高速脉冲输出功能有效地避免了扫描周期的影响,完成快速移动和精密定位。这种方法完全可移植于其他要求精确计数的系统中。所以,这种方法具有广阔的推广意义。

In this paper, we described particularly the method that PLC controls stepping motor to accomplish orientation function in NC system, which new type PLC being able to output high-speed pulses that can avoid PLC scan cycle impacting validly, drives stepping motor to finish orientation. Moreover, this orientation method can been perfectly transplanted in other system needing accurate orientation. Therefore, the method has significance of being widely generalized.