Torch Head Breakaway

The breakaway input is already configured; it just needs a Hook assigned to it, exactly like the floating-head switch.

Open Machine Profile → Hooks, duplicate Crash (Floating Head), and rename the copy Torch Head Breakaway.

Change the first condition from Probe is active to Digital Input 0 is active. Digital Input 0 is the StrikeCommand breakaway input. Leave the Torch Output 0 is active condition in place.

Keep the remaining settings and actions the same:

• Scope: Always
• Trigger: Edge
• Rearm: Auto
• Feed Hold
• Stop
• Run the torch_off subroutine
• Display a message such as “Torch Head Breakaway while cutting!”

This makes the breakaway behave the same way as the floating-head crash Hook. Because the Hook also checks whether the torch output is active, triggering the switch during an ordinary jog will not stop motion—it is protecting the machine while cutting.

If Digital Input 0 is not changing live in JC3, enable its Toolbar indicator under User I/O so FluidNC reports its state to the Hook.

Enabled the Tollbar Indicator and it's switching with the breakaway, but the torch and arc do not stop.

Thanks, Matt. We’d like to gather a little more evidence before guessing at the cause. The breakaway input is reaching JC3, so this is likely either a Hook configuration issue or a software bug.

We previously set this machine up for OEM Connect, but it is currently offline. When you have a chance, please start JC3 on the machine and leave it connected long enough for us to retrieve the machine profile and relevant logs. If possible, let us know roughly when your last breakaway test occurred so we can match it to the log activity.

You do not need to repeat the test or run the torch again yet. The profile and existing logs should show us how the Hook is configured and whether it was triggered. Once the machine is online, reply here and we’ll investigate it directly.

I’ll be available for another two hours or so tonight if you’re able to connect it before then.

Not at the shop anymore tonight, maybe tommorrow night.

No problem. If tomorrow works, just leave a comment here when the machine is online. I’m usually available from 7:00–10:00pm Eastern and can pull the profile and logs once it reconnects.