The intelligent man-machine dialogue interface of the CNC machining center can systematically report the status of the machine tool, and provide a powerful reference for the maintenance of the machine tool failure. The status information includes: system or machine tool alarm information, input and output status between NC and PLC, and various coordinates Axis position status, etc. When the machine has a fault, these information and parameters will change accordingly. Based on this information, the fault can be easily found and eliminated as soon as possible.
1, the display shows an alarm
The alarm that displays the alarm number and alarm information through the CNC display is called the display display alarm. CNC systems generally have strong self-diagnosis capabilities. If the system's diagnostic software and display circuit work normally, when the system fails, the fault information can be displayed on the display in the form of alarm numbers and text.
The number of alarms that the CNC system can display ranges from dozens of types to thousands of types. It is an important information for fault diagnosis. In the display alarm, it can also be divided into two types: NC alarm and PLC alarm. The former is the fault display set by the manufacturer. It can compare the system's maintenance manual to determine the possible cause of the failure. The latter is the PLC alarm message text set by the machine tool manufacturer, which belongs to the fault display on the machine side. It can also compare the relevant content in the machine tool maintenance manual provided by the machine tool manufacturer to confirm the cause of the failure.
2, indicator light shows alarm
Indicator light display alarm refers to the alarm displayed by the status indicator light (usually composed of LED light-emitting tube or small indicator light) on each unit of the control system. According to the status indicator of the system, even if the display fails, we can still roughly analyze and judge the location and nature of the failure. Therefore, the status of these status indicators should be carefully checked during maintenance and troubleshooting.
