HONEYWELL DCS卡件 CC-PDIL01 51405040-175 DIGITAL INPUT MODUL
HONEYWELL DCS卡件 CC-PDIL01 51405040-175 DIGITAL INPUT MODUL
HONEYWELL DCS卡件 CC-PDIL01 51405040-175 DIGITAL INPUT MODUL
步進(jìn)電機(jī)在具有一定轉(zhuǎn)換方向的驅(qū)動(dòng)脈沖下運(yùn)行,據(jù)此將步進(jìn)電機(jī)驅(qū)動(dòng)器劃分為方向控制和邏輯輸出兩個(gè)部分。限位信號(hào)用于復(fù)位和限定運(yùn)行方向,因此在方向控制部分同時(shí)處理限位;在邏輯輸出部分,按照控制需求再次劃分為復(fù)位、自動(dòng)和手動(dòng)三個(gè)邏輯處理模塊,在邏輯輸出的實(shí)現(xiàn)方式上,復(fù)位、自動(dòng)和手動(dòng)通過一定的優(yōu)先級(jí)邏輯,通過發(fā)送電機(jī)占用請(qǐng)求復(fù)用邏輯輸出模塊。
爬山復(fù)位模塊用于復(fù)位調(diào)焦鏡頭到爬山搜索的起始位置。步進(jìn)電機(jī)驅(qū)動(dòng)器在捕獲到指令單元的復(fù)位信號(hào)后,按預(yù)定的運(yùn)行方向產(chǎn)生驅(qū)動(dòng)邏輯,直至控制器收到限位信號(hào)LIMIT的有效反饋后停止。復(fù)位過程中,自動(dòng)和手動(dòng)請(qǐng)求無效。
步進(jìn)電機(jī)驅(qū)動(dòng)器的步數(shù)數(shù)據(jù)接收端DATA在接收到指令單元傳入的運(yùn)行步數(shù)后,首先檢查當(dāng)前是否有其他電機(jī)占用請(qǐng)求,如果電機(jī)空閑,就按照同時(shí)傳入的方向信號(hào)輸出步數(shù)的驅(qū)動(dòng)邏輯;否則忽略本次自動(dòng)控制請(qǐng)求。
手動(dòng)微調(diào)在驅(qū)動(dòng)器中作為一種輔助控制手段,允許人工微調(diào)調(diào)焦鏡頭的位置。每啟動(dòng)一次手動(dòng)微調(diào),電機(jī)就按照設(shè)定的運(yùn)行方向,運(yùn)行一段固定的微調(diào)距離。驅(qū)動(dòng)器在捕獲到手動(dòng)輸入信號(hào)后,同時(shí)讀取手動(dòng)運(yùn)行方向DIRECTION的設(shè)置值,如果當(dāng)前電機(jī)空閑,則按照手動(dòng)輸入的方向信號(hào)輸出固定步數(shù)的驅(qū)動(dòng)邏輯;否則手動(dòng)請(qǐng)求無效。
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