Electromagnetic compatibility in CNC machines upgrade

Abtract – One of the types of modernization of CNC machines is the replacement of outdated electronic control units with more functional and compact ones, made on a modern element base. However, in the course of work on the modernization of CNC machines, characteristic problems of electromagnetic compatibility arise. The report examines the features of the electromagnetic compatibility of equipment, blocks and assemblies of CNC machines during modernization. Based on the analysis of the factors characterizing the electromagnetic environment, typical failures of the electronic part of the control system of a CNC machine tool during testing, the need for the development of measures to ensure EMC is shown. All measures to ensure electromagnetic compatibility are not intended to reduce degradation, but to ensure the full implementation of all equipment functionality. General solutions are proposed that are applicable to the modernization of most second-generation CNC machine tools.