西门子6ES7231-5PD32-0XB0

6ES7231-5PD32-0XB0 

通电后电机不能转动，但无异响，也和冒烟

01故障原因

①电源未通（至少两相未通）；

②熔丝熔断（至少两相熔断）；

③过流继电器调得过小；

④控制设备接线错误。

02故障排除

①检查电源回路开关，熔丝、接线盒处是否有断点，修复；

②检查熔丝型号、熔断原因，换新熔丝；

③调节继电器整定值与电动机配合；

④改正接线。

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