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步進馬達的類比編碼回饋(Analog Feedback)



硬體: Motion Control>>Controllers>>PCI-7350, Motion Control>>Controllers>>PCI-7330, Motion Control>>Controllers>>PCI-7332, Motion Control>>Controllers>>PCI-7334, Motion Control>>Controllers>>PCI-7340, Motion Control>>Controllers>>PCI-7342, Motion Control>>Controllers>>PCI-7344, Motion Control>>Controllers>>PCI-7352, Motion Control>>Controllers>>PCI-7354, Motion Control>>Controllers>>PCI-7356, Motion Control>>Controllers>>PCI-7358, Motion Control>>Controllers>>PCI-7350, Motion Control>>Controllers>>PCI-7304, Motion Control>>Controllers>>PCI-7314, Motion Control>>Controllers>>PCI-7324, Motion Control>>Controllers>>PCI-7330, Motion Control>>Controllers>>PCI-7332, Motion Control>>Controllers>>PCI-7334, Motion Control>>Controllers>>PCI-7340, Motion Control>>Controllers>>PCI-7342, Motion Control>>Controllers>>PCI-7344, Motion Control>>Controllers>>PCI-7352, Motion Control>>Controllers>>PCI-7354, Motion Control>>Controllers>>PCI-7356, Motion Control>>Controllers>>PCI-7358

問題:
我想使用類比編碼回饋步進馬達,請問我該怎麼做?

解答:
基本上設定步進馬達的類比編碼回饋是跟設定伺服馬達一樣的。正確來說,就算您不使用編碼回饋,您仍需要定義在沒有使用編碼回饋時每圈幾個count。

接下來的四個步驟將解釋如何設定步進馬達使用類比編碼回饋
  1. 連接類比編碼回饋訊號線至你所使用的軸上的analog input。請參考運動控制卡的使用說明書或您的Universal motion interface (UMI)使用手冊已得知正確接腳。


  2. 在MAX中的Axis Configuration (請選擇連接步進馬達的軸),將primary feedback設定成Analog
  3. 在MAX裡的"ADC Settings"中,選擇適合您類比編碼回饋感測器的電壓範圍。
  4. Goto "Encoder Settings" 並改變編碼器的coumt per revolution的設定以符合您所使用的步進馬達上ADC的步數。
注意:步驟4 是非常重要的,編碼器的步數將決定電壓準位與距離(或角度)間的轉換供NI-Motion驅動器使用。一個比較簡易的方法去找出ADC每圈的步數,您可以到MAX中的1D interactive。將Maximum Following Error設定成0(這表示關閉following errors),接著命令您的馬達轉動完整的一圈 (記下開始與結束間編碼器count值的差)。這個差就會等於您所需要填在encoder counts per revolution欄位中的值(如步驟4所提到)。下面這張圖顯示出您可以在哪邊找到您類比編碼回饋的回饋值



相關連結:
Product Manuals: National Instruments 7330 User Manual
Product Manuals: National Instruments 7340 User Manual
Product Manuals: NI 7350 User Manual
Product Pages: Universal Motion Interfaces

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報告日期: 03/23/2006
最後更新: 05/10/2006
文件偏號: 3VMMB7AJ