西门子802D系统数控机床超程保护控制PLC编程

PLC Programming for Over-range Protection Control of Siemens 802D CNC Machine Tool

本文系统地研究了西门子802D系统数控机床行程限位保护方式和硬件限位逻辑与PLC硬限位保护的原理,绘制了硬件限位逻辑保护电气连接原理图及限位开关逻辑信号关系。针对相应的硬限位保护方案,系统介绍了硬限位PLC程序编制方法。最后,经过系统参数设置、程序调试,验证了硬限位保护程序的正确性。

This paper systematically studies the stroke limit protection mode of Siemens 802D CNC machine tool,and introduces the principle of hardware limit logic and PLC hard limit protection.The schematic diagram of electrical connection of hardware limit logic protection is drawn and the logic signal relationship of limit switch is introduced.Aiming at the corresponding hard limit protection scheme,the programming method of hard limit PLC is introduced systematically.Finally,the correctness of the hard limit protection program is verified by setting the system parameters and debugging the program.