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)動脈沖下運行，據(jù)此將步進(jìn)電機(jī)驅(qū)動器劃分為方向控制和邏輯輸出兩個部分。限位信號用于復(fù)位和限定運行方向，因此在方向控制部分同時處理限位；在邏輯輸出部分，按照控制需求再次劃分為復(fù)位、自動和手動三個邏輯處理模塊，在邏輯輸出的實現(xiàn)方式上，復(fù)位、自動和手動通過一定的優(yōu)先級邏輯，通過發(fā)送電機(jī)占用請求復(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)動器在捕獲到指令單元的復(fù)位信號后，按預(yù)定的運行方向產(chǎn)生驅(qū)動邏輯，直至控制器收到限位信號LIMIT的有效反饋后停止。復(fù)位過程中，自動和手動請求無效。
步進(jìn)電機(jī)驅(qū)動器的步數(shù)數(shù)據(jù)接收端DATA在接收到指令單元傳入的運行步數(shù)后，首先檢查當(dāng)前是否有其他電機(jī)占用請求，如果電機(jī)空閑，就按照同時傳入的方向信號輸出步數(shù)的驅(qū)動邏輯；否則忽略本次自動控制請求。
手動微調(diào)在驅(qū)動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。每啟動一次手動微調(diào)，電機(jī)就按照設(shè)定的運行方向，運行一段固定的微調(diào)距離。驅(qū)動器在捕獲到手動輸入信號后，同時讀取手動運行方向DIRECTION的設(shè)置值，如果當(dāng)前電機(jī)空閑，則按照手動輸入的方向信號輸出固定步數(shù)的驅(qū)動邏輯；否則手動請求無效。
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