HR2000 BLA-04
HR2000 BLA-04HR2000 BLA-04
近年來(lái),隨著社會(huì)的發(fā)展,PLC可編程序控制器在工業(yè)生產(chǎn)中得到了廣泛的使用,但是其維護(hù)檢修方法和技巧,很多電工都不得法,筆者長(zhǎng)期在生產(chǎn)一線(xiàn)工作,從事電氣設(shè)備的維護(hù) 檢修和管理工作,對(duì)PLC開(kāi)發(fā)應(yīng)用和維修工作特別感興趣,積累了較多行之有效的經(jīng)驗(yàn)和技巧。
1 PLC輸入與輸出
一只小小的PLC靈活地控制著一個(gè)復(fù)雜系統(tǒng),所能看到的是上下兩排錯(cuò)開(kāi)的輸入輸出繼電 器接線(xiàn)端子、對(duì)應(yīng)的指示燈及PLC編號(hào),就像一塊有數(shù)十只腳的集成電路。任何一個(gè)人如果 不看原理圖來(lái)檢修故障設(shè)備,會(huì)束手無(wú)策,查找故障的速度會(huì)特別慢。鑒于這種情況,我們 根據(jù)電氣原理圖繪制一張表格,貼在設(shè)備的控制臺(tái)或控制柜上,標(biāo)明每個(gè)PLC輸入輸出端子 編號(hào)與之相對(duì)應(yīng)的電器符號(hào),中文名稱(chēng),即類(lèi)似集成電路各管腳的功能說(shuō)明。有了這張輸入 輸出表格,對(duì)于了解操作過(guò)程或熟悉本設(shè)備梯形圖的電工就可以展開(kāi)檢修了。但對(duì)于那些對(duì) 操作過(guò)程不熟悉,不會(huì)看梯形圖的電工來(lái)說(shuō),就需要再繪制一張表格:PLC輸入輸出邏輯功 能表。該表實(shí)際說(shuō)明了大部分操作過(guò)程中輸入回路(觸發(fā)元件、關(guān)聯(lián)元件)和輸出回路(執(zhí) 行元件)的邏輯對(duì)應(yīng)關(guān)系。實(shí)踐證明如果你能熟練利用輸入輸出對(duì)應(yīng)表及輸入輸出邏輯功能 表,檢修電氣故障,不帶圖紙,也能輕松自如。
【公 司】: 廈門(mén)泰尼電氣有限公司
【主 營(yíng)】: AB、GE、施耐德等各類(lèi)PLC產(chǎn)品
【價(jià) 格】: 電議
【發(fā)布人】: 張亮
【電 話(huà)】: 18030028083
【所在地】: 福建 - 廈門(mén)
【座 機(jī)】: 0592-6809819
【來(lái) 源】: 供應(yīng)信息 > 電工、電氣 > PLC
【Q Q】: 2314094943
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