3.2 The laser head alarms and stops during operation

Issue:

This may be caused by the flame sensor’s sensitivity being too high. Adjust the flame sensor’s sensitivity to prevent false alarms and stop interruptions.

Judgment Video：

Solution1:Reduced sensitivity of flame alarms based on video

Follow the steps in the video to fix it

Solution 2: Flame alarms can be blocked on the software (not recommended for testing purposes only)

How to turn off the flame sensor in LightBurn:

  • Step 1: Plug the device into the power supply and connect the data cable.
  • Step 2: Turn on the device and open the LightBurn software on your computer.
  • Step 3: Connect the machine to your computer using the "Device" option in LightBurn.



    •
  • Step 4: In the right-hand "Console" panel, type $54=0 and press Enter to disable the flame sensor.

    •


  • Step 5: Type $$ and press Enter to check the settings. If $54=0, the flame sensor is off; if $54=1, the flame sensor is on.




    •  

    We prefer that you physically reduce the sensitivity of the flame alarm, and shielding the flame alarm on the software allows you to use it to determine whether the flame alarm is caused by a sudden stop during machine movement.

     

    Promotion heading
    Explore
    Promotion heading
    Explore
    Promotion heading
    Explore

    Step 1: Pre-Use Check - Machine Inspection 

    Before using your machine, it's important to ensure everything is properly set up. This step guides you through basic checks like power connections, fastenings, and the laser head position to help prevent common issues and ensure smooth operation.

    1.1 Install the Laser Head

    Before use, please ensure the laser head is properly installed. You can refer to our short video to check if the installation is correct.

    1.2 Check the Power Connection

    Make sure the power is connected properly, and the power cord is secure to avoid any loose connections.

    1.3 Check the Air Tube and Limit Switch Connections

    Please confirm that the air tube and limit switch are correctly connected to prevent operational errors or malfunctions during engraving.

    1.4 Ensure the Emergency Stop Switch is Released

    Before use, make sure the emergency stop switch on the right side has been rotated and released, allowing the machine to start normally.Before use, make sure the emergency stop switch on the right side has been rotated

    1.5 Power Indicator Light is On

    Check if the machine’s power indicator light is on, which indicates that the machine is powered properly.

    When the power button indicator light keeps flashing:

    Step 1: Press and hold the power button on the machine to turn it off, then unplug the USB cable and the power cord.

    Step 2: Reinsert the USB cable and power cord into the machine.

    Step 3: Briefly press the power button on the machine to turn it on. The machine should start up normally.

    If the indicator light still keeps flashing after completing the above steps, please install the software patch:

    1.Download the GRBL_V1.10_D_0408 software: Click here to download

    2.Follow the video steps:

    3.Then check if the laser head is functioning properly. If it’s not, please contact our after-sales service.

    1.6 Close the Lid Before Starting the Engraving

    Before starting the engraving process, please ensure that the machine’s lid is closed for safe operation.