Judgment and maintenance of general faults of winding machines

With the development of the electronic and electrical industry, winding machines are used more and more widely. The problem that arises is how to ensure the effective utilization of the machine. When the winding machine fails, it must be restored to normal use as soon as possible. In order to solve this problem, maintenance personnel are first required to have relatively high quality. They are not only required to have strong professional knowledge, such as mechatronics technology, computer principles, CNC technology, PLC technology, automatic control technology, dragging principles, etc., but also It is necessary to master the basic principles of the internal structure of the winding machine and the simple programming of the CNC device. In addition, it is necessary to have a certain reading ability and be able to read and understand the technical information manual provided with the machine. You must also have the ability to obtain sufficient information through other channels. In addition, a certain amount of spare parts is required, and maintenance personnel need to have certain experience and master certain maintenance methods.

1. Correctly determine the fault phenomenon

When a winding machine fails, you must first understand the fault phenomenon, ask the operator about the situation when the failure occurred for the first time, observe the process of the failure if possible, observe under what circumstances the failure occurred, and how What happened, and what were the consequences. Only by understanding the first-hand situation can it be helpful to troubleshoot machine faults. If the fault process is clarified, half of the problem will be solved. After clarifying the fault phenomenon, and then based on the working principle of the winding machine, the problem can be quickly diagnosed and the fault eliminated, so that the winding machine can be restored to normal use.

2. Use the circuit status display function of the control system

Many winding machines have PLC status display functions. These functions can be used to display the real-time status and content of the PLC's input, output, current parameters, subroutine numbers, counters, etc. According to the working principle of the winding machine, some faults can be diagnosed by monitoring the corresponding status.

3. Find out the source and scope of the fault

Although most faults in CNC equipment can be detected through PLC devices, the mechanism of PLC fault detection is to run the PLC program compiled for a specific machine by running the winding machine, and make logical judgments based on various input and output states. If a problem is found , generate an alarm and generate alarm information on the display screen. Therefore, for some PLC faults that generate alarms, or some faults that do not alarm, the fault can be diagnosed by analyzing the PLC programming manual combined with the current fault display. The display function of the CNC system can be used to improve the speed and accuracy of fault diagnosis. .

4. Use the exchange method to pinpoint the fault point

For some faults involving the control system, sometimes it is not easy to confirm which part has the problem. Under the condition of ensuring that there is no further damage, replacing the suspected main control board with a spare main control board is an effective way to accurately locate the fault point. Method, sometimes exchanging the main control board of the same type on other winding machines will diagnose the fault more quickly (at this time, it is necessary to ensure that the faulty machine will not damage the good board). Faults must be checked based on the principles of first peripheral then internal, mechanical first electrical, simple first then complex, static first then dynamic, public first then special, and software first and then hardware.

For more complex faults in winding machines, especially when it comes to control systems, applying these principles can simplify the fault diagnosis process and avoid detours. Sometimes these principles should be used in combination so that the fault can be eliminated as quickly as possible. The most critical and core thing to solve the problems of the CNC winding machine is to master the working principle of the CNC system and the working principle of the winding machine, so that you can be handy when dealing with problems that arise when the machine is used. On this basis, you can troubleshoot the problem. Observe, think, check, analyze, diagnose, and finally troubleshoot.

HZ2422 Electric CNC Winding Machine