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What if there is no light in the laser marking machine?-superwave laser marking system

Superwave Laser Technology Co.,Ltd | Updated: Jan 27, 2018


Fault phenomena: all of them are abnormal. In the high voltage side, they are connected to the ammeter, so that the ammeter is abnormal, or the current is prolonged, sometimes it is not, and sometimes it is not controlled.


Reasons for failure: the main reason is that the laser type selection is incorrect, the main board, the wiring board, the power supply or the control line connection and the cooling water circulation system failure.


Elimination method: 

1. In parameter setting, see whether the laser type is correct, it is the main reason for continuous luminescence failure.


2. Pull the control line of jiuli to see if the control line is loose. Connections are unreliable.

3. Remove the control line (nine-core wire) from the power supply, and press the laser power to analyze whether the power supply or the main board failure.

4. The point shooting is normal, indicating that the power supply is trouble-free.

5. The point shooting is also abnormal, indicating that there is a problem with the power supply.

6, when the power supply is normal, connected to the line of control, switch control pin in a patch panel is measured with a multimeter, no light, in a normal more than 4 v, the voltage is lower than 3 v, the main output is not normal; When emitting light, the foot voltage should be below 2 volts.

7. Check whether the water circulation is normal, whether the water flow is sometimes not, and whether the water protector has problems.