西門(mén)子伺服電機(jī)1PH1103-1LF12-0GA0

由于直接起動(dòng)存在較大的缺點(diǎn)，降壓起動(dòng)隨之產(chǎn)生。這種起動(dòng)方式適用的起動(dòng)環(huán)境為空載和輕載這兩種情況，由于降壓起動(dòng)方式是在同時(shí)實(shí)現(xiàn)了限制起動(dòng)轉(zhuǎn)矩和起動(dòng)電流的，因此起動(dòng)工作結(jié)束后需要使工作的電路恢復(fù)到額定狀態(tài)

西門(mén)子伺服電機(jī)1PH1103-1LF12-0GA0

能耗制動(dòng)時(shí)切斷電動(dòng)機(jī)的三相交流電源，將直流電送入定子繞組。在切斷交流電源的瞬間，由于慣性作用，電動(dòng)機(jī)仍按原來(lái)方向轉(zhuǎn)動(dòng)，這種方式的特點(diǎn)是制動(dòng)平穩(wěn)，但需直流電源、大功率電動(dòng)機(jī)，所需直流設(shè)備成本大，低速時(shí)制動(dòng)力小。(2)反接制動(dòng)又分負(fù)載反接制動(dòng)和電源反接制動(dòng)兩種。

西門(mén)子伺服電機(jī)1PH1103-1LF12-0GA0

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1PH8184－1DD03-1BD1－Z
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