Woodworking engraving machine stepper motor driver interference solution

         Because the general stepping motor and the driver housing are not magnetically shielded by aluminum, titanium or magnesium alloy casings, the woodworking engraving machine interferes with the highly sensitive receiver system, making it inoperable and contaminating the power supply, resulting in the control system of the microcontroller and The upper computer can't communicate, and the serious one causes the single-chip computer to crash, which makes it difficult for normal use, so the interference problem must be solved.
The following measures can be taken to solve:
A. Install a power filter to reduce contamination of the AC power.
B. "One point to ground" principle. The ground of the power filter, the driver PE (ground) (the driver is insulated from the chassis bottom), the control pulse PULSE- and the direction pulse DIR- shorted lead wire, the motor ground wire, the cable protection sleeve between the driver and the motor, the driver The shielded wires are connected to the grounding post on the wall of the chassis and require good contact.
C. Try to increase the distance between the control line and the power line (L, N) and the motor drive line (U, V, W) to avoid crossover. For example, we are dealing with two drive installations in the same chassis in a two-axis drive system. In position, one drive nameplate faces forward and the other faces backwards, and the construction is arranged to keep these leads as short as possible.
D. Use shielded wires to reduce interference from the outside world or interference from the outside world (power cord).
After the above processing, the system works reliably.

Buy woodworking engraving machine, beware of being deceived

       As we all know, Jinan is the largest production base of engraving machines in the country, but it is filled with many dealers and small workshops. There are so many large-scale engraving machine manufacturers, and the research and development technology of new engraving machines is by these large engraving machine manufacturers. Firmly grasp, small manufacturers small workshops do not have the technical core competitiveness, and can only "draw a scoop than the gourd", but the engraving machine that comes out of this way has only its own appearance and no connotation. Some small workshops and small manufacturers are more trouble-free, and directly take pictures of other factories and machine pictures for their own use.
        Although the woodworking engraving machine has been relatively mature since its development, with the subdivision of the user industry, the woodworking engraving machine has also been updated. There are professional multi-step automatic tool change engraving machines and machining centers for wood door furniture. Staircase handrails, tiger legs, table legs, three-dimensional statues of cylindrical three-dimensional engraving machine, as well as professional woodworking engraving machines for antique furniture relief, etc., how the key details in these engraving machines are still produced by several large engraving machines The manufacturers have mastered, and large-scale engraving machine manufacturers are equipped with professional testing equipment, which is a hardware condition that small workshops and small manufacturers do not have, which directly determines the production level and technology of the engraving machine.