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When diagnosing faults of CNC circular machines quickly and accurately, we can refer to the following steps and methods:
###1、 Understand the fault situation
1. * * Detailed inquiry * *: First, communicate in detail with the maintenance or operation personnel to understand the specific symptoms, occurrence time, frequency, and possible impacts of the malfunction.
2. * * View Alarm Information * *: View the alarm information of the CNC system, including the alarm number, alarm content, etc., which often provides direct fault clues.
###2、 Preliminary inspection
1. * * Observe appearance * *: Check the appearance of the CNC circular machine for obvious damage, wear, or abnormal conditions.
2. * * Check indicator lights * *: Check if the fault indicator light, status indicator light, or alarm device in the control cabinet is on, which helps to quickly locate the source of the fault.
3. * * Startup Test * *: If the fault situation allows, conduct a startup test to observe whether the fault phenomenon reappears.
###3、 In depth analysis
1. * * Utilizing Self Diagnosis Function * *: Modern CNC systems have powerful self diagnosis functions, which can quickly narrow down the fault range by displaying alarm information on the CRT or indicating the approximate cause of the fault using light-emitting diodes.
2. * * Refer to relevant materials * *: Carefully analyze the possible causes of faults and the components involved, based on the machine tool’s information, electrical drawings, operation manuals, etc.
3. * * Functional testing method * *: Conduct functional testing on commonly used and special functions of CNC systems, such as linear positioning, arc interpolation, etc., and further determine the fault location based on the test results.
###4、 Specific diagnosis
1. * * PLC inspection * *: Use the status information or ladder diagram of the PLC for fault diagnosis, which helps to discover problems related to the electrical control system.
2. * * Parameter Check * *: Check if the parameter settings in the CNC system are correct, including machine data, cutting parameters, etc., as incorrect parameter settings may also cause malfunctions.
3. * * Specific part inspection * *: Based on preliminary analysis and self diagnosis results, inspect specific components or modules, such as servo drives, motors, sensors, etc.
###5、 Summary and Record
1. * * Determine the cause of the malfunction * *: Based on the above steps, determine the specific cause of the malfunction and the components involved.
2. * * Recording and Feedback * *: Record the diagnostic process and results, including the cause of the malfunction, replaced components, maintenance measures, etc., for the convenience of subsequent maintenance and upkeep work.
###6、 Precautions
1. * * Safety First * *: During the diagnostic process, always ensure the safety of personnel and equipment, and follow safety operating procedures.
2. * * Professional Tools * *: Use appropriate tools and equipment for diagnosis and maintenance, ensuring accuracy and efficiency.
3. * * Continuous learning * *: With the continuous development of technology, it is necessary to continuously learn new fault diagnosis methods and skills to cope with increasingly complex equipment failures.
Through the above steps and methods, it is possible to diagnose the faults of CNC circular machines more quickly and accurately, improve maintenance efficiency, and reduce production losses.