自动化仪表
自動化儀錶
자동화의표
PROCESS AUTOMATION INSTRUMENTATION
2014年
10期
34-36,41
,共4页
S7-400H%参数控制%挤压机%混炼电机%连续启动%齿轮泵
S7-400H%參數控製%擠壓機%混煉電機%連續啟動%齒輪泵
S7-400H%삼수공제%제압궤%혼련전궤%련속계동%치륜빙
S7-400H%Parameter control%Extruder%Mixer motor%Continuously starting up%Gear pump
介绍了西门子S7-400H系统在聚丙烯造粒机组上的应用，包括控制系统的硬件配置情况、典型控制功能和第一故障原因闪光报警系统的实现方法。研究分析了FB41功能块的引脚功能、挤压造粒机筒体压力不稳和混炼电机连续启动现象的成因，解决了工艺参数控制不稳和混炼电机连续启动的问题。设备运行情况表明，西门子PLC满足机组对控制系统的要求。
介紹瞭西門子S7-400H繫統在聚丙烯造粒機組上的應用，包括控製繫統的硬件配置情況、典型控製功能和第一故障原因閃光報警繫統的實現方法。研究分析瞭FB41功能塊的引腳功能、擠壓造粒機筒體壓力不穩和混煉電機連續啟動現象的成因，解決瞭工藝參數控製不穩和混煉電機連續啟動的問題。設備運行情況錶明，西門子PLC滿足機組對控製繫統的要求。
개소료서문자S7-400H계통재취병희조립궤조상적응용，포괄공제계통적경건배치정황、전형공제공능화제일고장원인섬광보경계통적실현방법。연구분석료FB41공능괴적인각공능、제압조립궤통체압력불은화혼련전궤련속계동현상적성인，해결료공예삼수공제불은화혼련전궤련속계동적문제。설비운행정황표명，서문자PLC만족궤조대공제계통적요구。
The application of Siemens S7-400H in polypropylene granulation unit is introduced. The hardware configuration of control system, the implementing methods of typical control functions and the first cause of the malfunction flashing alarm system are included in introduction. The pin assignment of FB41 function block, the causes of unstable cylinder pressure of granulation unit and continuously starting up of the mixer motor are researched and analyzed. The problems of unstable control of process parameters and continuously start up of mixer motor are resolved. The operation situation of the equipment shows that Siemens PLC satisfies the requirements of the control system.
