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在我公司二期扩建工程中,净水厂新增了DCS系统(分布式控制系统),相关装置由以前的PLC(可编程控制器)控制改为DCS系统控制。改为DCS系统控制后,装置中的现场拖动电动机,其运行电流可在DCS系统的电脑画面上直接显示出来。按照设计要求,电流要先通过上海某公司生产的电动机综合保护器,再由保护器输出电流模拟量到DCS系统控制柜的模拟量输入单元,DCS系统输出端显示电动机电流变化情况。
In the second phase of our expansion project, a new DCS system (distributed control system) was added to the water purification plant. The relevant device was changed from the previous PLC (programmable logic controller) control to DCS system control. To DCS system control, the device drag the scene of the motor, the operating current in the DCS system can be displayed directly on the computer screen. According to the design requirements, the current must first pass a motor integrated protector produced by a company in Shanghai, and then the output current of the protector will output the analog quantity to the analog input unit of DCS system control cabinet. The DCS system output shows the change of motor current.