Torch shuts off and on during a cut

CrossFire ® PRO Troubleshooting
1

Cut Problem2
Cut Problem21920×2560 821 KB

This is something that just started a few days ago. System has performed great before this. Start program and moves to pierce and starts cutting for a few inches and then shuts off but continues moving, refires while on the same cut. This happens at random places so it doesnt matter how long or short the cut is. No errors thrown on Firecontrol or Hypertherm. I tried turning off the THC but it didnt make a difference.

Hypertherm Powermax 45 sync
45A Sync cartrige
10Ga mild steel
95IPM
.08 Delay
.15 Pierce height
.14 Cut height
141V live voltage and maintains that when torch shuts off and then on again.
Air 100 PSI at regulator
Ground is connected to sanded down material

Im at a loss, I hope this is enough information but I will try to upload a video.

2

What are you using to create your g code? Fusion or Sheetcam?

Do you have tabs enabled? It looks like a clean pierce on the restart, so it could be doing what it’s told.

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3

I’ve never used the Tabs feature. Does the torch raise between cuts with Tabs? That answer may give Bison-MC some further insight.

4

After talking to the Hypertherm tech service he helped me set up my panel to see the on off control signal to the torch. I did some test cuts and the plasma cutter is intermittently loosing the on signal which is pointing to the start stop relay or board. Calling Langmuir on Monday.

5

Are you talking about tabs that leave the piece connected to the material? No its not on

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6

Just a FYI, after talking to Hypertherm service tech, we set up the machine panel to indicate an “ON” signal from Firecontrol. The light stayed on eventhough the torch stopped fireing. He said it was a bad component on the main board. At least its under warranty so its off to Conneticut.

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