Design of failures monitoring system in pulsed gas melted arc welding power source

In order to solve the problem of diagnosing welding power source and ensure the safety, the fault tree of GMAW-P welding power source system is built and the hierarchical control technology is used.Modules of fault trees can be used to reduce the computational cost of basic operation.The result shows that this method is easily to be processed by the computer, and the efficiency of diagnosis is improved.The result of this new failures monitoring system shows that the intelligence of welding power source is improved and it has wide applicatious.