【摘要】 采用西门子可编程序控制器S7-300,通过PROFIBUS现场总线与多台变频器之间进行通讯,实现对腈纶装置水洗牵伸联合机的调速和自动控制。通过替换原有的继电器控制系统、直流调速系统,提高了系统的自动化水平、可靠性和抗干扰能力。更多还原

【Abstract】 Siemens programmable controller S7-300 is adopted, and PROFIBUS field bus communicates with many converter, which attains that ocrylic fibres device water scrubbing draw combination machine is regulated in speed and is auto-controlled. Original relay control system is replaced, which increases the automatic level, reliability and anti-interference of the system更多还原