注塑機控制電(dian)(dian)(dian)源(yuan)(yuan)(yuan)是采用(yong)直(zhi)(zhi)流電(dian)(dian)(dian)源(yuan)(yuan)(yuan)，與通用(yong)直(zhi)(zhi)流電(dian)(dian)(dian)源(yuan)(yuan)(yuan)一樣(yang)，主要由(you)變(bian)壓(ya)、整流、濾波組(zu)成。直(zhi)(zhi)流電(dian)(dian)(dian)源(yuan)(yuan)(yuan)由(you)交(jiao)(jiao)流電(dian)(dian)(dian)源(yuan)(yuan)(yuan)供(gong)電(dian)(dian)(dian)，經變(bian)壓(ya)器進行電(dian)(dian)(dian)壓(ya)轉(zhuan)化(hua)，將(jiang)AC220V變(bian)為AC20V低壓(ya)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)，再用(yong)橋(qiao)式(shi)整流器（也叫橋(qiao)堆(dui)）將(jiang)交(jiao)(jiao)流電(dian)(dian)(dian)轉(zhuan)化(hua)為直(zhi)(zhi)流電(dian)(dian)(dian)，然(ran)后(hou)經過(guo)電(dian)(dian)(dian)解電(dian)(dian)(dian)容的濾波效果，供(gong)給26V、24V、12V直(zhi)(zhi)流電(dian)(dian)(dian)源(yuan)(yuan)(yuan)，其(qi)間12V直(zhi)(zhi)流電(dian)(dian)(dian)源(yuan)(yuan)(yuan)為集成運放的作業(ye)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)。這(zhe)些電(dian)(dian)(dian)源(yuan)(yuan)(yuan)分(fen)別在電(dian)(dian)(dian)源(yuan)(yuan)(yuan)電(dian)(dian)(dian)路(lu)板和放大器電(dian)(dian)(dian)路(lu)板上供(gong)給。

   常(chang)見故障一(yi)：合上(shang)電(dian)源(yuan)(yuan)開關(guan)，無電(dian)源(yuan)(yuan)供給。或(huo)許(xu)原因(yin)1：電(dian)源(yuan)(yuan)保(bao)險器燒壞；處理方(fang)法：檢查(cha)(cha)替(ti)換(huan)保(bao)險；或(huo)許(xu)原因(yin)2：電(dian)源(yuan)(yuan)指示燈（POWER LED）損壞；處理方(fang)法：替(ti)換(huan)LED指示燈；或(huo)許(xu)原因(yin)3：接(jie)(jie)(jie)線(xian)端(duan)子的螺釘或(huo)插口接(jie)(jie)(jie)觸不良，導線(xian)銜(xian)接(jie)(jie)(jie)不牢(lao)靠有松動(dong)等；處理方(fang)法：檢查(cha)(cha)電(dian)源(yuan)(yuan)進(jin)線(xian)及電(dian)壓，檢查(cha)(cha)接(jie)(jie)(jie)線(xian)端(duan)子及導線(xian)銜(xian)接(jie)(jie)(jie)牢(lao)靠。

   常見故障二：無(wu)直(zhi)流+24V電源：或(huo)許原因1：電源保險(xian)器燒壞(huai)；處(chu)理(li)(li)方法(fa)：檢查替(ti)換(huan)保險(xian)；或(huo)許原因2：整流橋堆損(sun)壞(huai)；處(chu)理(li)(li)方法(fa)：檢查丈量(liang)橋堆是(shi)否合格，損(sun)壞(huai)替(ti)換(huan)；或(huo)許原因3：開(kai)關(guan)變壓器損(sun)壞(huai)；處(chu)理(li)(li)方法(fa)：檢查變壓器，損(sun)壞(huai)替(ti)換(huan)。

  常(chang)見故障(zhang)三(san)：無作業電源±5V輸(shu)出：或許原因(yin)(yin)1：整(zheng)流橋堆(dui)損(sun)壞；處(chu)理方法：檢(jian)查丈量橋堆(dui)是否受損(sun)，損(sun)壞替(ti)換；或許原因(yin)(yin)2：三(san)端穩壓(ya)器損(sun)壞；處(chu)理方法：檢(jian)查三(san)端穩壓(ya)器是否受損(sun)，損(sun)壞替(ti)換。