Laser marking machine does not emit light

2019-08-07 11:35

As the new darling of the logo industry, the application of laser marking machines has been very extensive. In order to enable the users to better use the equipment, Fraus Laser will share some common faults and solutions for laser equipment.


Let us first analyze what causes the laser marker to emit light. To solve this problem, we first need to understand the working principle of the laser marking machine: the laser marking machine uses the laser beam to mark the surface of various materials with permanent marks. The effect of marking is to expose deep materials through the evaporation of surface substances, thus engraving beautiful patterns, trademarks and words. Laser marking machine is mainly divided into CO2 laser marking machine, semiconductor laser marking machine, fiber laser marking machine and YAG laser marking machine. At present, laser marking machine is mainly used in some occasions requiring more precise and higher precision. . Used in electronic components, integrated circuits (IC), electrical appliances, mobile communications, hardware products, tool accessories, precision equipment, glasses and watches, jewelry, auto parts, plastic buttons, building materials, PVC pipe.


Fault phenomenon:


All of the light is not normal. On the high voltage side, the current meter is connected. It can be seen that the ammeter shows abnormality, or there is current for a long time, or sometimes it is not, sometimes it is not controlled.


cause of issue:


The main reason is the choice of laser type, motherboard, patch panel, power supply or control line connection and cooling water circulation system failure.


Method of exclusion:


1. Remove the control wire (nine core wire) on the power supply and press the laser power button to analyze whether the power supply or the motherboard is faulty.


2. In the parameter setting, see if the laser type is correct. It is the main cause of continuous illumination failure.


3. Pull the nine core control line to see if there is any control line loose. The connection is not reliable.


4, check whether the water cycle is normal, whether the water flow is sometimes no, whether the water protector has problems


5, the point shot is normal, indicating that the power supply is not faulty.


6. When the power supply is normal, connect the control line and measure the switch control pin on the terminal board with a multimeter. When the light is not illuminated, the normal voltage is above 4 volts, below 3 volts, the output of the motherboard is not normal; when the light is on, the foot The voltage should be below 2 volts, and the output above 2.5 volts is not normal.


7, the shot is not normal, indicating that there is a problem with the power supply.


8. Carefully check whether the line connectors in the chassis are loose or loose, and the wires are not broken or broken.


Basically, after doing the above checks and eliminations, you can find the cause of the problem and solve the problem. If you have not found the reason, you need to contact the company's after-sales personnel to arrange the technology to check.