The movement protection is triggered

The flame sensor can be easily triggered. When the flame sensor is triggered, the LightBurn

The console will display an alarm 3. This may be due to ignition during use, strong light exposure, settings

issues, short circuits, or damage. Please refer to the following settings for inspection:

Avoid open flames during the engraving process. If an open flame occurs, please reduce the laser

power.

Place the engraving machine in a normal indoor environment, avoiding direct exposure to strong

lights such as flashlights or sunlight.

Adjust the flame trigger threshold. First, run the LightBurn or LaserGrbl software, connect the

engraving machine to the PC via USB, and enter $42=1300 in the control command panel and press

Enter to lower the trigger threshold. If it still triggers, you can continue to reduce the $42 threshold

and send it.

If the flame sensor is triggered at the start of engraving, it may be due to a short circuit between the

sensor’s metal pins and the metal casing. Please manually adjust the position of the flame sensor

behind the control box to prevent contact between the metal pins and the casing (the flame sensor is

a black cylindrical probe located at the back of the RAY5 control box); if ineffective, you can send the

command $38=0 in the LightBurn or LaserGrbl console to disable the flame sensor function (to

30. Enable it again; send the command $38=1.

 The motion sensor may be triggered due to machine movement during use, settings issues, or

sensor damage. Please refer to the following settings for inspection:

Check that the engraving machine is placed on a stable surface to avoid movement during operation.

Adjust the motion sensor trigger threshold. First, run the LightBurn or LaserGrbl software, connect

the engraving machine to the PC via USB, and enter and send the commands $40=200 and $41=40 in

the control command panel to lower the sensor trigger threshold.

If the motion sensor is continuously triggered at the start of engraving, it may be due to the sensor.

damage. You can send the command $39=0 in the LightBurn or LaserGrbl console to disable the

motion sensor function (to enable it again, send the command $39=1)