PM864K02

PM864K02

作為控制用特殊電機(jī)，步進(jìn)電機(jī)是將電脈沖轉(zhuǎn)換成角位移的致動(dòng)器。當(dāng)步進(jìn)驅(qū)動(dòng)器輸入脈沖信號(hào)時(shí)，驅(qū)動(dòng)步進(jìn)電機(jī)使設(shè)定的角度(步進(jìn)角度)的角度旋轉(zhuǎn)，以的角度依次執(zhí)行該旋轉(zhuǎn)。角度位移可以通過(guò)控制脈沖數(shù)來(lái)控制，以實(shí)現(xiàn)準(zhǔn)確定位的目的，同時(shí)可以通過(guò)控制脈沖頻率來(lái)控制電機(jī)的旋轉(zhuǎn)速度和加速度，以實(shí)現(xiàn)速度控制的目的。如果繞組的電源接通順序被變更，則電機(jī)相反。

驅(qū)動(dòng)器原理

步進(jìn)電機(jī)需要由由脈沖產(chǎn)生控制單元、功率驅(qū)動(dòng)單元、保護(hù)單元等構(gòu)成的特殊步進(jìn)電機(jī)驅(qū)動(dòng)。屬于步進(jìn)電機(jī)和微控制器之間的功率接口。

控制指令部接收脈沖和方向信號(hào)，對(duì)應(yīng)的脈沖產(chǎn)生控制部生成對(duì)應(yīng)的相位數(shù)的脈沖組，通過(guò)功率驅(qū)動(dòng)部后向步進(jìn)電機(jī)輸送，步進(jìn)電機(jī)在對(duì)應(yīng)的方向旋轉(zhuǎn)步進(jìn)角。驅(qū)動(dòng)程序的脈沖設(shè)定模式?jīng)Q定步進(jìn)電機(jī)的動(dòng)作模式。

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