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西门子伺服驱动器接地应该注意哪些事项
信息来源： 发布时间：2013-08-19 09:12:01 点击次数：0
西门子伺服驱动器接地应该注意哪些事项?西门子伺服驱动器接地注意事项：
1、保持命令参考电压的恒定，要将西门子伺服驱动器的信号地接到控制器的信号地。 假如接到外部电源的接地上，容易影响控制器和驱动器的工作。
2、屏蔽层接地是比较困难的，有几种方法。正确的屏蔽接地处是在其电路内部的参考电位点上。这个点取决于噪声源和接收是否同时接地，或者浮空。要确保屏蔽层在同一个点接地使得地电流不会流过屏蔽层。
3、在西门子伺服系统中，所有的公共地和大地在信号端是接在一起的。多种连接大地方式产生的地回路很容易受噪音影响而在不同的参考点上产生流。
4、如果在交流电源和西门子驱动器直流总线(如变压器)之间没有隔离的话，不要将直流总线的非隔离端口或非隔离信号的地接大地，这可能会导致设备损坏和人员伤害。因为交流的公共电压并不是对大地的，在直流总线地和大地之间可能会有很高的电压。
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