AT氣動執行器在使用的過程中，它是會出現故障的，那么AT氣動執行器的故障原因是什么呢？具體的檢修方法是什么呢？下面為大家介紹3大AT氣動執行器的常見故障及檢修方法。

　　1、AT氣動(dong)執行器的動(dong)作(zuo)方向不受輸入信號的控(kong)制

　　故障(zhang)判斷和(he)檢(jian)修過程：先檢(jian)查兩個限流電阻(zu)和(he)移相(xiang)電容均(jun)沒有異常，用萬用表檢(jian)查電機(ji)的繞組阻(zu)值(zhi)，發現電機(ji)的電阻(zu)值(zhi)為(wei)1.45MΩ（且不時地發生變化），說(shuo)明電機(ji)繞組不對，zui終的辦法(fa)是更換了這(zhe)臺電機(ji)（PSQ200）。

　　2、故障(zhang)現象：現場只要送AC220V電源(yuan)，保護開關立即動作（跳閘）AT氣(qi)動執行器伺放保險已燒。

　　故障判斷和檢(jian)修過程：首先(xian)用萬用表檢(jian)測(ce)AT氣動執行器(qi)上的(de)電(dian)(dian)(dian)機(ji)繞(rao)(rao)組(zu)，發現(xian)電(dian)(dian)(dian)機(ji)繞(rao)(rao)組(zu)的(de)電(dian)(dian)(dian)阻趨(qu)(qu)向于(yu)零，說(shuo)明電(dian)(dian)(dian)機(ji)已短路(lu)，再檢(jian)測(ce)抱(bao)閘兩(liang)端電(dian)(dian)(dian)阻，電(dian)(dian)(dian)阻趨(qu)(qu)向于(yu)無窮大(da)，說(shuo)明抱(bao)閘已壞，正常應(ying)是1.45K左(zuo)右。處理辦法是：更換新的(de)抱(bao)閘和電(dian)(dian)(dian)機(ji)，把(ba)伺(si)放板的(de)保險(xian)管裝上，重(zhong)新調(diao)試，恢復正常運作。

　　3、故障現象：無論現場給(gei)什(shen)么信號電機都不動作，

　　故障判斷和檢修過程：直接在電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)繞組間(jian)通電(dian)(dian)(dian)(dian)(dian)(dian)，電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)也(ye)不(bu)傳，抱閘(zha)拆(chai)(chai)下(xia)通電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)還(huan)是不(bu)轉(zhuan)(zhuan)，檢測(ce)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)繞組阻值均(jun)正(zheng)常(chang)，手(shou)輪搖AT氣動執(zhi)行(xing)器動作(zuo)正(zheng)常(chang)。檢測(ce)的(de)結果都正(zheng)常(chang)就是通電(dian)(dian)(dian)(dian)(dian)(dian)時電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)不(bu)轉(zhuan)(zhuan)，此時懷疑電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)的(de)轉(zhuan)(zhuan)子，把(ba)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)拆(chai)(chai)開，發現轉(zhuan)(zhuan)子用手(shou)都擰不(bu)動，原來轉(zhuan)(zhuan)子和電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)端蓋之間(jian)已(yi)有一(yi)層(ceng)堅固的(de)灰(hui)，把(ba)這層(ceng)灰(hui)清除(chu)之后，加上(shang)一(yi)點潤滑(hua)油，用手(shou)就可以擰動了。重(zhong)新(xin)(xin)把(ba)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)裝好并與AT氣動執(zhi)行(xing)器配合裝上(shang)，通電(dian)(dian)(dian)(dian)(dian)(dian)正(zheng)常(chang)，重(zhong)新(xin)(xin)調試。