西门子产品说明6ES7307-1EA80-0AA0

6ES7307-1EA80-0AA0

三相电机烧坏的判定

　　1、电机对地短路，测试方法用摇表一端接地，一端接电机端子，摇测下来绝缘为零。

　　2、用万用表电阻档，测量三相电机的相间电阻，如果电阻无穷大，说明电机绕组烧坏。

　　三相电动机操作应注意事项

　　1、操作X6132铣床时，如果电动机不转动，应立即关闭电气开关，查明原因，原因后才允许重新合闸使用。

　　2、操作中，若电动机发出异常响声或振动大，应立即拉闸，对电动机和铣床传动装置进行检查。

　　3、一般电动机空载起动不能连续超过3~5次，在铣床运转中停车不久再次起动不能连续超过2~3次。

　　4、新安装使用的电动机，如果旋转方向反了，应立即拉闸，然后调换电源任意两相的接线，这时就改变了磁场的旋转方向，也就改变了电动机的旋转方向。

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