Valid arc lost

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06 Jan 2020 20:56 #154172 by CNC32
Valid arc lost was created by CNC32
I am running a Hypertherm 65 with a MESA 7i96 and a THCAD 5. When I am cutting every now and then I will get an error that says
Valid Arc Lost program is paused.
This error happens when the arc appears to be fine. I am wondering what causes this error.

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06 Jan 2020 22:06 #154177 by phillc54
Replied by phillc54 on topic Valid arc lost
Is this since you changed over to Mode 1?

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07 Jan 2020 02:31 #154192 by CNC32
Replied by CNC32 on topic Valid arc lost
Yes. For now, I have to take another thin piece of metal and place it under the torch so when it starts up it has metal to strike to arc on. It gives me this error about four times for about 25 minutes of cutting.

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07 Jan 2020 02:36 #154193 by phillc54
Replied by phillc54 on topic Valid arc lost
Well the machine controls the Arc OK signal so it may be a physical connection problem.

You should also check that the Cut Parameters are correct.

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07 Jan 2020 02:42 #154194 by CNC32
Replied by CNC32 on topic Valid arc lost
Okay, thanks phillc54 I will check my cut parameters again. Just so I better understand this error message is the only way that this error happens when the Arc OK signal turns off or are there other things that can cause this error.

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07 Jan 2020 02:46 #154195 by phillc54
Replied by phillc54 on topic Valid arc lost
Yes, that error message means that the Arc OK signal was lost.
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07 Jan 2020 06:27 #154198 by tommylight
Replied by tommylight on topic Valid arc lost
Lower the cut height.
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