I have encountered a tossing a day of communication interference failure.。The system is SiemensplcControl System,DPCommunicate6Meter6Inverter,Driven feed system on plastic equipment。When it replaced a frequency converter at the time, booted,Device starts,DPBus alarm,CPUStop operation。I have done a problem with the new replacement inverter,When you replace a fault in time。So starting various findings,Various analytics are solved!Eventually becauseDPThe shielding layer of the communication line does not cause communication interference caused by the ground.!Visible interferenceDPHow big is the impact of communication?!This inverterDPCommunication port is not standardDPJoin,But use ordinary crimping terminals。The shield is required to directly press the metal clamp equipped with the inverter to form a ground on the metal housing of the drive.。lesson:On-site maintenance BALMUDA净化器在那修 and disassembly must be careful,Restore,And not lazy。I have seen too many machine covers. I have four installation screws.,After we dismount, it will become two.!
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