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西門子伺服驅動器接地應該注意哪些事項
信息來源： 發布時間：2013-08-19 09:12:01 點擊次數：0
西門子伺服驅動器接地應該注意哪些事項?西門子伺服驅動器接地注意事項：
1、保持命令參考電壓的恒定，要將西門子伺服驅動器的信號地接到控制器的信號地。 假如接到外部電源的接地上，容易影響控制器和驅動器的工作。
2、屏蔽層接地是比較困難的，有幾種方法。正確的屏蔽接地處是在其電路內部的參考電位點上。這個點取決于噪聲源和接收是否同時接地，或者浮空。要確保屏蔽層在同一個點接地使得地電流不會流過屏蔽層。
3、在西門子伺服系統中，所有的公共地和大地在信號端是接在一起的。多種連接大地方式產生的地回路很容易受噪音影響而在不同的參考點上產生流。
4、如果在交流電源和西門子驅動器直流總線(如變壓器)之間沒有隔離的話，不要將直流總線的非隔離端口或非隔離信號的地接大地，這可能會導致設備損壞和人員傷害。因為交流的公共電壓并不是對大地的，在直流總線地和大地之間可能會有很高的電壓。
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