MCLTPB0200-5A3-4-10
MCLTPB0200-5A3-4-10
MCLTPB0200-5A3-4-10
1、如果把以上的干接點信號,接上電源,再跟電源的另外一極,作為輸出,就是濕接點信號;工業(yè)控制上,常用的濕接點的電壓范圍是DC0~30V,比較標(biāo)準(zhǔn)的是DC24V;AC110~220V的輸出也可以是濕接點,盡管這樣做比較少; 2、把TTL電平輸出作為濕接點,也未嘗不可;一般情況下,TTL電平需要帶緩沖輸出的,例如:7407、245、244等,與VCC等構(gòu)成回路;244、245也可以跟gnd構(gòu)成回路;才能驅(qū)動遠(yuǎn)方的光耦。 3、NPN三極管的集電極輸出和VCC; 4、達(dá)林頓管的集電極輸出和VCC; 5、紅外反射傳感器和對射傳感器的輸出; 在工業(yè)控制領(lǐng)域中,采用干接點要遠(yuǎn)遠(yuǎn)多于濕接點,這是因為干接點沒有極性帶來的優(yōu)點: 1、 隨便接入,降低工程成本和工程人員要求,提高工程速度 2、 處理干接點開關(guān)量數(shù)量多 3、 連接干接點的導(dǎo)線即使長期短路既不會損壞本地的控制設(shè)備,也不會損壞遠(yuǎn)方的設(shè)備 4、 接入容易,接口容易統(tǒng)一 換種說法: 干接點:無源開關(guān);具有閉合和斷開的2種狀態(tài);
【公 司】: 福建鴻飛達(dá)自動化科技有限公司
【主 營】: AB(羅克韋爾)PLC全系列、ABB機(jī)器人系統(tǒng)備件、施耐德140/TSX、西門子6SN/6FC、伺服系統(tǒng)全套等
【價 格】: 電議
【發(fā)布人】: 程先生
【電 話】: 15306977024 13625073704
【所在地】: 福建 - 福州
【坐 機(jī)】: 0591-83532940
【Q Q】: 2851617309
【傳 真】: 0591-88263940
【郵 箱】: 2851617309@qq.com
產(chǎn)品價格以電話或者QQ詢價為準(zhǔn),發(fā)布價格不做參考,圖片也一樣
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