FANUC,SIEMENS and NUM numerical control systems are widely used in our country.The common errors of FANUC system and troubleshooting are expatiated in this paper.

• 在我国应用较广的数控系统有日本FANUC、德国SIEMENS、法国NUM等。现就FANUC数控系统常见故障及其排除方法给予阐述。