Common faults about red light of fiber laser marking machine

Before using the fiber laser marking machine, you need to learn some wiring principles about the control module of the fiber laser marking machine, so that you can effectively deal with some simple machine failure problems.

1. Galvanometer is powered by ±15V switching power supply
2. The fiber laser is powered by ±24V switching power supply
3. The controller board is powered by ±5V switching power supply

During the daily operation of the fiber laser marking machine, the galvanometer, the control card, and the fiber laser are the places where faults occur frequently; when the corresponding part fails, the corresponding power supply system can be checked in time, such as whether the voltage is normal.

Below, I will explain the daily failures accordingly

Case 1：The red light disappears

First determine where the red light disappears, galvanometer or fiber laser;

Galvanometer: 

The two red lights at the galvanometer do not emit light, and the ±15V switching power supply is faulty；If only one of the two red lights at the galvanometer does not emit light, then the red light is faulty.

Fiber Laser:

Red Dot Pointer in Laser Path

Fiber Laser With Red Dot Pointer

Restart the software to check if the red light is on.If not, the red light that comes with the fiber laser may be faulty or the red light in the laser path is faulty.

Case 2：Laser stopped working, the red light disappeared

Restart the software; if the laser does not work, check the ±24V switching power supply; if the power supply is normal, then the laser or control card may be faulty.

Case 3: Press F1 and the red light twists into weird shapes

Check the switching power supply at the galvanometer, if the power supply is normal, the galvanometer may be faulty