描述
安裝原因
DCS進(jìn)行安裝時(shí)沒(méi)有嚴(yán)格按規(guī)程要求進(jìn)行,技術(shù)上有漏洞,特別是系統(tǒng)接地、電纜(信號(hào)電纜和通訊電纜)敷設(shè)方面。
1.2.1系統(tǒng)接地不好造成設(shè)備損壞
某熱電廠DCS在6月投用,夏季兩次由于打雷損壞數(shù)塊I/O模件端子板。檢查電源系統(tǒng)均正常,后測(cè)量DCS接地電阻,發(fā)現(xiàn)比調(diào)試時(shí)的記錄數(shù)據(jù)大很多,再檢查發(fā)現(xiàn)DCS接地至電氣接地網(wǎng)的接線螺絲由于安裝問(wèn)題造成松動(dòng),處理后正常。
要重視安裝驗(yàn)收評(píng)審工作,在按要求完成各項(xiàng)安裝指標(biāo)測(cè)試和驗(yàn)評(píng)的同時(shí),作好技術(shù)數(shù)據(jù)的記錄、整理、歸檔便于以后分析對(duì)比。在目前用電緊張的情況下,很多項(xiàng)目在趕進(jìn)度,更要抓好安裝質(zhì)量。
主營(yíng):世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國(guó)AB)系列產(chǎn)品》
②Schneider(施耐德電氣)系列產(chǎn)品》
③General electric(通用電氣)系列產(chǎn)品》
④Westinghouse(美國(guó)西屋)系列產(chǎn)品》
⑤SIEMENS(西門(mén)子系列產(chǎn)品)》
⑥銷售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。
⑧Invensys Foxboro(??怂共_):I/A Series系統(tǒng),F(xiàn)BM(現(xiàn)場(chǎng)輸入/輸出模塊)
順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號(hào)處理、數(shù)
據(jù)通信及處理等。Invensys Triconex:冗余容錯(cuò)控制系統(tǒng)、基于三重模件冗余(TMR)
結(jié)構(gòu)的zui現(xiàn)代化的容錯(cuò)控制器。
⑨Siemens(西門(mén)子):Siemens MOORE,Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
⑩Bosch Rexroth(博世力士樂(lè)):Indramat,I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。
◆Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
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