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Setting up voltage setpoint for THC

Posted:
Mon Feb 07, 2022 1:41 pm
by P0ppy
God bless You,
when I turn on plasma torch and it moves around workspace, Proma THC 150 displays values between 98 and 102 V. Do I have to set up 100 V as voltage setpoint for THC?
Sincerely,
P0ppy
Torch isn't working after enabling THC function in Mach3

Posted:
Tue Feb 08, 2022 11:22 am
by P0ppy
When THC function is enabled by clicking "THC" button in Mach3, torch lowers itself down, jet starts cutting and then everything stops. Torch doesn't move, jet doesn't cut. By the way, only THC UP and THC DOWN outputs are connected to AXBB-E. What should I change in Mach3 or Proma THC 150?
Re: Setting up voltage setpoint for THC

Posted:
Tue Feb 08, 2022 10:24 pm
by Greolt
Do you have "Arc OK" setup?
Answer to Greolt's post

Posted:
Wed Feb 09, 2022 5:52 pm
by P0ppy
No. I will connect it too.
What parameters for Proma THC 150 and SheetCam?

Posted:
Mon Feb 14, 2022 5:35 pm
by P0ppy
So, I have setup "ARC Ok" output. During cutting torch moves up and down for a while.
Then torch doesn't cut or move and measured voltage in THC rises until 3 hyphens show up.
Here are Proma THC 150 parameters:
- delay time: 1 s,
- hysteresis voltage: 2 V,
- high voltage (voltage of main/cutting arc): 200V.
And SheetCam parameters:
- feed rate: 1500 mm/min,
- pierce delay: 0.5 s,
- plunge rate: 1250 mm/min.
Material thickness is 2 mm. I think I should change pierce delay and delay time.
What else (if anything) must I change to make torch cut with reaction to detected height?
By the way thank You, Greolt, for hint.