# This is the alarm signal: ALARM:2

**URL:** <https://forum.lightburnsoftware.com/t/this-is-the-alarm-signal-alarm-2/118048>\
**Category:** LightBurn Software Questions\
**Tags:** grbl\
**Created:** [November 26, 2023, 10:59am UTC](https://forum.lightburnsoftware.com/t/this-is-the-alarm-signal-alarm-2/118048 "2023-11-26T10:59:38Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Angelo2](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/a/8dc957/32.png) [@Angelo2](https://forum.lightburnsoftware.com/u/Angelo2)\
**Post date:** [November 26, 2023, 10:59am UTC](https://forum.lightburnsoftware.com/t/this-is-the-alarm-signal-alarm-2/118048/1 "2023-11-26T10:59:38Z")

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Hello!  
I have an Atomstack A20 pro machine. After I have reinstalled Lightburn, the work is suddenly interrupted and the laser stops. It happens after a few minutes but also after half an hour.

This is the alarm signal:  
ALARM:2  
The G-code movement target exceeds the machine path. Maintain the machine position safely. The alarm can be cancelled. (Right-click on the “Devices” button to reset the connection).  
On or near line 62040:  
Job stopped.

Furthermore, I would like to know the function of overscan, because the programme warns me at job start that it cannot engrave properly because of overscanning.  
How should I set the overscan? Please forgive my ignorance.  
LG  
Angelo

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**Author:** ![misken](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/misken/32/47593_2.png) [@misken](https://forum.lightburnsoftware.com/u/misken)\
**Post date:** [November 26, 2023, 11:31am UTC](https://forum.lightburnsoftware.com/t/this-is-the-alarm-signal-alarm-2/118048/2 "2023-11-26T11:31:20Z")

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> [@Angelo2](#):
>
> This is the alarm signal:  
> ALARM:2

As the alarm description already says, you are trying to engrave outside the lasers’ workspace. This would fail and the laser stops. Show a full screenshot of your LightBurn window, including the laser window to check your settings.

> [@Angelo2](#):
>
> function of overscan

The documentation is the first place to check: [Fill Mode - LightBurn Software Documentation](https://docs.lightburnsoftware.com/UI/CutSettings/CutSettings-Fill.html#overscanning)  
Overscanning adds a few mm of travel space at the sides of the engraving for giving some time for the laser to accelerate/decelerate. This will avoid burned borders. If your design is already at the border of your workspace, the laser would crash into the frame (because the design gets “bigger”). So you need to move the project that far into the workspace that the overscan area also lies within.

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**Author:** ![system](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/system/32/64335_2.png) [@system](https://forum.lightburnsoftware.com/u/system)\
**Post date:** [December 26, 2023, 11:31am UTC](https://forum.lightburnsoftware.com/t/this-is-the-alarm-signal-alarm-2/118048/3 "2023-12-26T11:31:28Z")

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Closed on December 26, 2023, 11:31am UTC

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