故障现象为 B灯 与 FAULT 故障灯亮 ,UPS长鸣 .根据台达的产品说明书,此现象应为 直流总线电压过电压 ,即BUS 电压异常 . 本人对台达的UPS 并不熟悉,希望有维修过的工程师 , 共同探讨维修技术上的问题;
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