Using the numerical control system and PLC program diagnosis

Commonly used numerical control machine tool maintenance methods: CNC equipment maintenance is a very complex and high technical content of a work, numerical control equipment has bigger difference with normal equipment.

1, the self-diagnosis function of CNC system

General CNC system has a relatively complete self-diagnosis system, fanuc system and Siemens system, CNC system initialization or run on electricity can on its own or interface in a certain range of the diagnosis. Maintenance personnel should be familiar with system self-diagnosis all kinds of alarm information.

2, the use of PLC program logic to find.

Now the general CNC control system with PLC controller, most of the built-in PLC control. Maintenance personnel should be according to the ladder diagram to analyze electrical machine control, visually see on CRT CNC system I/O state. By importing pump logic analysis of PLC program, convenient to check out the problem areas, such as FANUC - OT in the system since the diagnostic page.

3, communicate with the operator on the spot

Site operation personnel is the most intimate partner, numerical control machine operator is also the first found that of all kinds of fault. So when a fault happens, maintenance personnel, generally do not have to rush to begin, first fully communication with operator, carefully ask failure occurs when the machine is working state, manifestation, the consequences, whether the wrong operation, fault, such as being able to reproduce this helps maintenance personnel to quickly analyze and judge the cause of the problem.