Common fault diagnosis methods of electrical system of NC machine tool

The process of investigation, analysis and diagnosis of electrical system faults of NC machine tools is also the process of troubleshooting. Once the cause is found out, the fault is almost eliminated. Therefore, the method of fault analysis and diagnosis has become very important. Common diagnostic methods are as follows: (1) Visual inspection method is […]

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How to write perfect PLC program

The best evaluation standard of PLC program is practice. See if the program can achieve the desired purpose. But that’s not enough. Because there are good and bad procedures to achieve the goal. What kind of program is a good program? There are several aspects as follows 1. Brevity Making PLC program as short as […]

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PLC fault analysis and troubleshooting

On the basis of analyzing the characteristics of PLC process control fault, this paper introduces four methods of PLC fault analysis and elimination, and lists two examples to illustrate the process of fault analysis and elimination. PLC fault characteristics Most of the faults related to PLC are peripheral interface signal faults, so in maintenance, as […]

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Problems in learning PLC programming

1. Programming requires perseverance and patience Every man has his strong points. Some people regard programming as a long and boring job; Some people regard programming as an interesting intellectual game. If you are the former, it is strongly recommended that you stay away from the job. After all, programming is a challenge to perseverance […]

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Inspection of Siemens PLC program

After the completion of PLC programming, in order to ensure the reliability of the program, it is usually necessary to check the syntax and format of the program. The inspection shall include the following basic contents: ① Generally, there should be no repetitive coils in the program (except for special use); ② Generally, there should […]

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