How to troubleshoot ALARM:1 [MSG:Reset to continue]

gnea / grbl

An open source, embedded, high performance g-code-parser and CNC milling controller written in optimized C that will run on a straight Arduino

https://github.com/gnea/grbl/wiki

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How to troubleshoot ALARM:1 [MSG:Reset to continue] #776

Open AndKe opened 4 years ago

AndKe commented 4 years ago

I get the above message now and then, usually after some time of inactivity. What is causing it? , nothing is near the endswitches. Can it be reset from console ?

langwadt commented 4 years ago

alarm:1 is hard limit triggered, most likely cause is noise on the wires to the end switches

AndKe commented 4 years ago

I kept them away from motors, twisted slightly, and never seen it happen during operation. So. I take there is no way of knowing which of the 6 inputs is tripped?

langwadt commented 4 years ago

nope, all hit the same interrupt and unless you define HARD_LIMIT_FORCE_STATE_CHECK you'll get the alarm even if it was only a glitch