Troubleshooting of CNC walking machine:

The analysis process of electrical faults is also the process of troubleshooting. Therefore, some common troubleshooting methods for electrical faults have been comprehensively introduced in the above analysis methods. Here are a few common electrical faults listed.

1. The power supply is the energy source for the normal operation of the maintenance system and even the entire CNC walking machine. Its failure or malfunction can result in data loss and shutdown. Heavy damage can cause partial or even complete destruction of the system.

Due to sufficient electricity and high-quality power grids, Western countries have less consideration for the power supply design of their electrical systems. This is somewhat insufficient for China's power supply network with large fluctuations and high-order harmonics. In addition, some human factors inevitably lead to faults caused by power sources. When designing the power supply system for CNC walking machines, we should try our best to:

① Provide an independent distribution box without being used in series with other equipment;

② The power supply has a good grounding at the beginning;

③ Areas with poor power supply quality in the power grid should be equipped with three-phase AC voltage stabilization devices;

④ The layout of electrical components inside the cabinet and the laying of AC and DC wires should be isolated from each other.

⑤ The three-phase power supply entering the CNC walking machine should adopt a three-phase five wire system, with the neutral line (N) strictly separated from the grounding (PE);

2. The position ring of the CNC walking machine system is faulty

① Position ring alarm. It may be an open circuit in the position measurement circuit; Damaged measuring components; The interface signal established for position control does not exist, etc.

② The coordinate axis generates motion without instructions. Perhaps due to excessive drift; Connect the position loop or velocity loop to form positive feedback; Feedback wiring open circuit; The measuring component is damaged.

3. The coordinates of the CNC walking machine cannot find the zero point. Perhaps the zero direction is moving away from the zero point; Encoder damage or open circuit wiring; Grating zero point marking shift; The zeroing deceleration switch is malfunctioning.

4. The dynamic characteristics of the CNC walking machine deteriorate, the machining quality of the workpiece decreases, and even the walking machine vibrates at a certain speed. There is a high possibility that this is caused by excessive clearance or severe wear in the mechanical transmission system, or insufficient lubrication or even wear of the guide rail; For the electrical control system, it may be that the speed loop, position loop, and related parameters are no longer in the optimal matching state, and should be re optimized after the mechanical fault is basically eliminated.

5. Occasional shutdown failure. There are two possible scenarios here: one is that a problem in the relevant software design, as mentioned earlier, causes a shutdown fault under certain specific combinations of operations and functional operations. Generally, the CNC walking machine will disappear after being powered off and then re powered on; Another situation is caused by environmental conditions, such as strong interference (from the power grid or surrounding equipment), high temperature, high humidity, etc. This environmental factor is often overlooked by people, for example, in the southern region, CNC walking machines are placed in ordinary factories or even near open doors, electrical cabinets operate with doors open for a long time, and there are large amounts of equipment nearby that generates dust, metal shavings, or water mist. These factors not only cause malfunctions, but can also seriously damage the operating system. It is essential to pay attention to improving them.