恒邦自動化伺服驅動器的工作原理:
在(zai)轉子(zi)S極(ji)端(duan)(duan)也是(shi)同樣道理,當繞(rao)組齒對齒時,其(qi)旁(pang)邊一(yi)(yi)相磁極(ji)錯位1.8°。3 步進(jin)(jin)電(dian)(dian)(dian)(dian)(dian)機驅(qu)動(dong)器(qi)(qi)步進(jin)(jin)電(dian)(dian)(dian)(dian)(dian)機必須有(you)驅(qu)動(dong)器(qi)(qi)和控(kong)制器(qi)(qi)才能正(zheng)常(chang)工作(zuo)。驅(qu)動(dong)器(qi)(qi)的(de)(de)作(zuo)用是(shi)對控(kong)制脈沖(chong)(chong)進(jin)(jin)行環形分配、功(gong)率放大,使(shi)步進(jin)(jin)電(dian)(dian)(dian)(dian)(dian)機繞(rao)組按(an)一(yi)(yi)定順序通電(dian)(dian)(dian)(dian)(dian),控(kong)制電(dian)(dian)(dian)(dian)(dian)機轉動(dong)。步進(jin)(jin)電(dian)(dian)(dian)(dian)(dian)機 42BYG250C的(de)(de)驅(qu)動(dong)器(qi)(qi)為SH20403。為10V~40V直流供電(dian)(dian)(dian)(dian)(dian), A+、A-、B+、B-端(duan)(duan) 子(zi)要連(lian)接(jie)(jie)步進(jin)(jin)電(dian)(dian)(dian)(dian)(dian)機的(de)(de)四條引線,DC+、DC-端(duan)(duan)子(zi)接(jie)(jie)驅(qu)動(dong)器(qi)(qi)工作(zuo)直流電(dian)(dian)(dian)(dian)(dian)源(yuan),輸(shu)入(ru)接(jie)(jie)口電(dian)(dian)(dian)(dian)(dian)路(lu)包(bao)括公(gong)共端(duan)(duan)(接(jie)(jie)輸(shu)入(ru)端(duan)(duan)子(zi)電(dian)(dian)(dian)(dian)(dian)源(yuan)正(zheng)極(ji))、脈沖(chong)(chong)信號(hao)輸(shu)入(ru)端(duan)(duan)(輸(shu)入(ru)一(yi)(yi)系列脈沖(chong)(chong),內部分配以驅(qu)動(dong)步進(jin)(jin)電(dian)(dian)(dian)(dian)(dian)機A、B相)、方向信號(hao)輸(shu)入(ru)端(duan)(duan)(可實現步進(jin)(jin)電(dian)(dian)(dian)(dian)(dian)機的(de)(de)正(zheng)、反轉)、脫機信號(hao)輸(shu)入(ru)端(duan)(duan)。
混(hun)合式步進電機(ji)分為兩相、三相和五相:兩相步進角一般為1.8度而五相步進角一般為 0.72度,混合式步進電機隨著相數(通電繞組數)的增加,步進角減小,精度提高,這種步進電機的應用最為廣泛。混合式步進電機綜合了反應式和永磁式步進電機兩者的優點:極對數等于轉子齒數,可以根據需要在很大范圍內變化;繞組電感隨
轉(zhuan)子(zi)位置變化較小,易于實現最佳運(yun)行控制;軸向充磁磁路,使用高磁能積(ji)的新型(xing)永磁材料,有(you)利于電機性能的提(ti)高;轉(zhuan)子(zi)磁鋼提(ti)供勵磁;在整(zheng)個運(yun)行區域沒有(you)明(ming)顯的振蕩。
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