3、投用。4.4第四层次:应用软件参数的进一步调整 此为在单体试车、联动试车之前、之中、之后,对某些仪表参数如复杂调节系统的计算系数、偏置值、延迟时间、设定值及比例度、积分、微分时间等的试验调整,以获得最佳运行工况。5.调试内容及方法 Content and Method of testing:5.1DCS调试现场调试工作主要是检查使用系统软件,并对应用软件进行组态确认和功能测试。 Local testing mainly including: checking and applying system software. Executing function approval
4、and function test.5.1.1通电前的检查Inspection prior to making contact.电缆绝缘电阻符合要求(大于5M欧),查看电缆绝缘电阻测试记录,必要时抽查实测。Insulation resistance is more than 5MΩ, checking resistance test record. If necessary sampling and testing.核对所有电源线、信号线、通讯总线应连接无误。Checking all power supply lines, signal lines, and communicatio
5、n trunk line right and identical.控制站、操作台、工程师站等各机框内插卡、适配器及其接口的型号、位置正确无误。For control station, operation table, engineer station, specification and site of all insert cards, adaptors and nozzle connection shall be correct.各插卡予设定旋钮位置正确。Location for presetting button of insert cards is right.扣电源单元及插
6、卡上电源开关均处于“OFF”位置,所有保险丝完好无损。Power unit and switch of insert card shall shut off, and fuses are undamaged and fine.机柜内所有连接螺钉均应牢固、无松动。Tightly fixing connection screw to machine and cabinet.接地系统接地电阻测试:Grounding resistance testing:从控制室接地板上拆除“MG”、“CG”接地母线,用接地电阻测试仪分别测量基接地电阻,应符合设计要求(小于10欧)。Dismantling
7、MG and CG, from grounding plate of control room. Measuring grounding resistance and compliance with design (less than10Ω)用万用表检查各机柜接地汇流排是否分别与“MG”、“CG”接地板插通。Testing using multimeter whether grounding bus-bars of cabinet well connect