產(chǎn)品詳情
6ES7322-5FF00-0AB0
6ES7322-5FF00-0AB0
PTO方式:PTO的全稱是“Pulse Train Output”,也就是“脈沖串輸出”。運動控制器通過發(fā)送占空比為50%的脈沖串給伺服驅(qū)動器來控制伺服電機(jī)的轉(zhuǎn)速。以CPU1215C為例,它總共支持四路脈沖串輸出(Pulse1~Pulse4),每一路脈沖信號支持四種PTO方式,分別是:
PTO(Pulse A and direction B,脈沖A和方向B);
PTO(Count up A and count down B,加計數(shù)A和減計數(shù)B);
PTO(A/B phase-shifted,A/B相移);
PTO(A/B phase-shifted- fourfold,A/B相移-四倍頻);
如下圖:
其中,PTO(Pulse A and direction B,脈沖A和方向B)是比較常用的方式。該P(yáng)TO方式使用CPU的兩路輸出:一路(A)產(chǎn)生高速脈沖串,另一路(B)控制伺服電機(jī)的運動方向。通過控制脈沖串產(chǎn)生的頻率,可以控制電機(jī)的轉(zhuǎn)速。
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