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Discussion on self diagnosis function of cnc lathe
When the CNC lathe is running, the CNC system monitors the operation of the lathe at all times. The CNC device monitors the operation of the servo system and PLC system. If any problem is found, it will alarm in time, and many faults will display alarm information on the screen. When the machine tool is running, the PLC device monitors the operation of the numerical control machine tool in real time through the user program compiled by the machine tool manufacturer. If a fault is found or the issued command is not executed, the corresponding signal is transmitted to the numerical control device in time, and the numerical control device will display alarm information on the screen.

After the CNC system is powered on, it must run the startup self diagnostic program to detect various connected control devices, and immediately report any problems found. For example, check whether the voltage of the backup battery meets the requirements. If the voltage is lower than the requirements, the system will generate an alarm. The battery alarm of the Siemens system is a No. i alarm, prompting the maintenance personnel to replace the battery immediately. If the battery cannot be replaced, the power cannot be cut before replacing the battery.