Arc OK intermitent issues on torch fire

I am fairly certain no ArcOk comes on the GUI, But i may double check tomorrow its gonna be a hard one to catch.

phillc54 wrote:

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

tommylight wrote:

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.

phillc54 wrote:

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)

phillc54 wrote:

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?

phillc54 wrote:

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.