西门子产品6ES7392-1BM01-0AA0

6ES7392-1BM01-0AA0

整流器模块损坏

　　这源于内部VFD短路和电网电压。检查VFD没有短路后，更换整流桥。始终确保检查电网电源的稳定性，尤其是当驱动器与破坏电网的设备（如焊机）在同一环境中工作时。

　　逆变器模块损坏

　　这是由驱动器或电机故障引起的。修复系统驱动电路并确定驱动波形符合规定的标准后，进行模块更换。更换驱动模块和电路板后，在启动VFD之前检查负载和电机连接电缆以确保没有故障。

　　驱动器已通电但显示零

　　这是由电源开关故障、电阻电路损坏、软 VFD 充电电路损坏或面板损坏引起的。

　　驱动器打开，但有欠压或过压显示

　　This originates from the loss of the input voltage phase due to damp and aging circuitry. To test the troubleshooting， inspect the board’s circuit components to remove the destroyed one.

　　通电时显示接地短路或电流

　　当电流检测电路（例如放大器、霍尔元件等）被破坏时，就会出现这种情况。更换所有损坏的元素。

　　启动时显示过压

　　这是由驱动电路或计数器模块故障引起的。

　　对 VFD 进行故障排除的关键要点

　　在排除故障之前，重要的是要有VFD手册和维护清单。

　　VFD故障排除涉及两个阶段：外部和内部。

　　外部故障排除包括目视检查，并检查电源线连接、输入线路电流和电压的数量以及来自驱动器的输出电压和电流。

　　通过执行静态和动态测试，可以识别和内部问题。

　　静态测试涉及整流和逆变器电路。

　　动态测试只能在静态测试后进行。

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