HF welding and cutting machine.Comprehensive analysis of inverter failure of embossing machine

　　With the continuous improvement of scientific skills, the birth of new high-power power electronic components, the use of integrated circuits and microcomputer skills, communication frequency conversion speed regulation skills have become increasingly perfect and sophisticated. The communication frequency converter speed regulation system has been widely used in metallurgy, petrochemical, electric power, machinery, civil electrical appliances and other professions due to its advantages of wide speed regulation scale, fast dynamic response, high precision speed regulation, perfect protection function and simple operation.

　　After 6-10 years of normal use, the frequency converter enters the high incidence period of faults, and often presents problems such as component burnout, failure, and frequent action of protection function, which seriously affects its normal operation. In the long-term engaged in equipment repair operations, I have encountered many different inverter faults, in the process of its treatment, found that its fault categories have certain commonalities and rules. In the practice of repair, as long as you grasp its characteristics and grasp the rules of fault treatment, you can do a good job in the repair operation of the inverter, so that the various faults of the inverter in practice can be treated and treated in time, and extend its service life. First of all, it is necessary to formulate perfect daily protection methods and maintenance cycles according to the requirements of the frequency converter's application skills, so that the fault danger is treated in the early stage, especially the frequency converter used in harsh environmental conditions, this method is more important. Secondly, professional repair personnel must fully understand its principle, structure and control methods and other common sense. In addition, there should be rich practical repair experience and solid electrical theoretical knowledge.

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