It will lose live voltage during cut and misfire on next pierce. I have a Everlast 62i CNC, ground clamp on bare metal. Good air supply. I had a RZR weld 45 and never had this problem. I have the Plasma hooked up to raw voltage. It will cut if I let the 35 sec air bled off.
@ds690 are we looking at another air solenoid issue here?
Make sure you have the machine set on CNC on the front. The other button should be on Tip/Saver.
Do you have at least 75 psi set on the front screen of the plasma cutter? When you push the air check button, it shouldn’t drop below 70 psi. If it does we might be looking at an Everlast solenoid problem.
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A solenoid issue would explain the reason why it won’t re-fire until the post flow stops.
It doesn’t explain the loss of live voltage during the cut.
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This is the statement that was making me think air solenoid.
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It was cutting good for bout 50% of cut, then it would cut the next cut and mis fire. I watched it a couple of times and saw the live voltage would stop working and then it would mis fire. I would have to let the cool down period stop, I have it set for 35 secs. Then it would cut again and do the same thing. Was cutting 16 Ga with ground clamp on it good. I have a good air supply with good air dryer and 2 desiccant dryers, motor guard filter and copper manifold set up. I have 79 PSI on the Plasma cutter, it will drop to 76 when I hit the air test buttom. I have the machine set on CNC. I used table a week ago and it worked fine.
Will the air solenoid causer this kind of problem?
Yes, it will. Too much air will blow out the arc. Everlast won’t operate over 80. Does the torch stay lit between the cuts or go out and try to refire? Does the torch move down to the pierce height on the second cut or stay up to the retract height?
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The torch will go out at end of cut. Move to next cut and not fire at all. I didn’t pay attention to see if it did the pierce height or not. I am at work and will check this afternoon. I used the table a week ago and it ran fine with no problems at all.
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Do me a favor and try a different program on your computer that has worked before. Before you tear apart the machine, let’s see if it is a bad post-process. Make sure your electrode is also free.
Everlast Solenoid Service Guide.pdf (513.9 KB)
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Everlast air solenoid maintenance procedure.
I did the test you had in the video. It will move up with no problem. I went to do a cut on another part and something is not right. It started to cut and torch raised up. I did part again and watched the live voltage and the live voltage only went to 46 volts and made the torch raise. Ground clamp on bare metal and good air
Should the tip saver button lit up?
Plasma cutter settings. Amps, post flow 20 to 30 sec., CNC and Tip saver lights on. Air 65 to 70 with the air flowing from the torch.
Turn THC off and try a small test cut program.
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Amps set on 31, post flow is 35 secs, air check is 69 and CNC and tip saver is on. I turned THC off and had tip at .062 and it did cut all the way through part.
That is a good thing. Now as far as voltage if you turn on THC smart can it do the same cut.
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Does your table pass the Ohm test? You must check it to see if we have a ground loop issue.
I am not a electrician at all. I used my meter and the number didnt change at all. I checked it the same way in the pic. I have my laptop plug up to another circuit on opposite way.
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I turned THC on and ran same cut. Live voltage reading 45 volts and torch raisng up
Unplug the laptop and try cutting. They are still connected to the same service ground.