Arc OK intermitent issues on torch fire

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10 Dec 2020 07:21 #191567 by luftlupus
I am fairly certain no ArcOk comes on the GUI, But i may double check tomorrow its gonna be a hard one to catch.

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10 Dec 2020 07:22 #191569 by phillc54
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10 Dec 2020 07:24 #191570 by luftlupus

This is where halscope comes into it own.

linuxcnc.org/docs/html/hal/tutorial.html#sec:tutorial-halscope


Nice ill look into this and make 100% sure if it comes on or not tomorrow. Cheers
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10 Dec 2020 11:00 #191574 by tommylight
Set the pirce height lower when cutting thin material.
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10 Dec 2020 11:07 - 10 Dec 2020 11:08 #191575 by luftlupus

Set the pirce height lower when cutting thin material.


Cuts are on 3mm sheet. pierce is 3.8mm. cut height is 2mm. And yes i had to figure that one out when i first cut 1mm sheet haha cheers.
Last edit: 10 Dec 2020 11:08 by luftlupus.
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10 Dec 2020 23:09 - 10 Dec 2020 23:12 #191615 by luftlupus

When that happens do you notice if the Arc OK led is lit on the GUI.


So just confirmed the ArcOK led on the GUI does not come on when this happens, it pierces the metal and the volatgae reading is around 95-110 when doing this with no ArcOK coming back. (starting to think its an internal issue with the plasma cutter unit itself)
Last edit: 10 Dec 2020 23:12 by luftlupus. Reason: extra info

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10 Dec 2020 23:11 #191617 by phillc54
So it doesn't get the signal from the plasma machine.

It may be a faulty relay or connection in the machine itself or it may need some contact wetting.

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10 Dec 2020 23:15 #191618 by luftlupus

So it doesn't get the signal from the plasma machine.

It may be a faulty relay or connection in the machine itself or it may need some contact wetting.


I am thinking the machine also. would this be counted as contact wetting on the arkOK line in this diagram?
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10 Dec 2020 23:21 #191620 by phillc54
That will give you around 24mA which would "probably" be adequate.
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10 Dec 2020 23:23 #191621 by luftlupus

That will give you around 24mA which would "probably" be adequate.

with only around 8hours cut time i wouldn't think i would have oxidization build up on this connection. i can only think bad relay internally.

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