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Mesh mode will trigger ARCOK immediately after striking an arc, but does not fit with what the OP is describing in some details, in some it does fit.
Also does not fit the 2T/4T control mode some manual plasma sources have.

JT wrote:

This is the root directory listing

root@forum:~# ls
access.log do-dns-mirror make-plot PHPMailer-5.2.14 update-plot
bin error.log monitor-memory plug_reCAPTCHA.rc1.zip v5.2.14.zip
cb_recaptchav2.zip expire-session.sh pflogsumm-1.1.1 requests.gnuplot
count-requests flo.sql pflogsumm-1.1.1.tar.gz SHOW
data letsencrypt PHPMailer simp_le

There would be a seperate user. It should have its own home folder, the same as you do on your Linuxcnc PC.
from your root home folder, try:
Then explore the seperate folders listed.

Note my knowledge is very dated ad things could have changed


 

Thanks cakeslob, I copied everything from yours last time, the only thing I don't have is the low pass, I'll give it a shot thanks 

If you need a 10 KHz chargepump (and you can spare a step/dir output)
I would use the last stepgen as a chargepump

You do this by setting stepgen 4 to velocity mode and quadrature:

setp hm2_7i96s.0.stepgen.04.control-type  1         # velocity mode
setp hm2_7i96s.0.stepgen.04.step_type  2             # quadrature so square waves
setp hm2_7i96s.0.stepgen.04.stepspace 5000       # short enough to not interfere
setp hm2_7i96s.0.stepgen.04.steplen      5000       # ""
setp hm2_7i96s.0.stepgen.04.maxaccel 0              # make velocity command instant
setp hm2_7i96s.0.stepgen.04.velocity-cmd 10000 # 10 KHz
net machine-is-on hm2_7i96s.0.stepgen.04.enable

And then use stepgen4's step pin as a 5V 10 KHz chargepump signal
 

I think you have a wiring fault. All the 105 does is close an internal relay when a valid arc is established. you provide the voltage to that relay and read the output when it opens and closes.I would confirm behaviour with a multii meter before going further.

We can't help until you provide full details of your THC, the way you have integrated with linuxcnc and the connections you have made.

Most people  use a Mesa Ethernet card and Mesa THCAD and not use an external THC.

Please don't duplicate your replies.

Hallo, ich bin gerade dabei meine Ansteuerung für die Fräse von Mach 3 auf LinuxCNC umzubauen. Die Fräse ist eine High-Z S-1000/T mit einer Heiz Zero-3. Diese Steuerung benötigt ein chargepump Signal. Aus meiner Mach3 Steuerung kommt dafür eine Frequenz mit 10KHz, womit es funktioniert. Aus meiner Mesakarte 7i96S kommen leider nur 500 Hz. 
In dem Konfigurationstool von LinuxCNC kann ja auf einen der Output's ein chargepump-Funktion gelegt werden, diese habe ich ausgewählt. Wie kann ich die Frequenz bestimmen die da heraus kommt?
Was ich auch vergeblich gesucht habe, gibt es jemand der eine fertige hal bzw ini hat die mit einer 7i96S und Heiz Zero-3 Steuerung zusammen arbeitet? Dann könnte ich diese als Grundlage nehmen oder im Vergleich mit meiner evtl. feststellen was ich falsch mache.

Gruß

Hey Murphy, i cant really see whats happening in the video but i think I can tell

github.com/cakeslob/RRW_LAB/blob/inc/Lin...c/remora_encoder.hal
github.com/cakeslob/RRW_LAB/blob/inc/Lin...c/remora_spindle.hal
check out these 2 hal files, specifically the encoder one, or just try them out. the encoder one has a lowpass filter to smooth out the rpm signal

Hi snow. Thank you.
I am using mode 2.
I have also a external THC as an independet electronics.
I am using ArcOK signal from the CNC port on the plasma cutter. The problem that I am finding out is that the Hypertherm PowerMax 105 is sending an ArcOk signal as soon as I send the signal to turn the arc on to the Powermax.
I will study the differences between mode 1 and 2 and will review if the PowerMax is set to work and such a way or if this is a problem on the Powermax.
As the Power Max always sends the Arc Ok signal, when the arc is not transfered to the part, QtPlasma does not try to start the arc again and the part program runs without cutting the part.
I will also try the recommended solution from the QtPlasma manual that tell us to make 3 turns with the power cable that goes to the plasma and use a reed switch inside those turns (as item 6 of the Plasma Cutting Primer for LinuxCNC Users Document).
Once again, thank you very much.

Hi Rod. Thank you.
I am using mode 2.
I have also a external THC as an independet electronics.
I am using ArcOK signal from the CNC port on the plasma cutter. The problem that I am finding out is that the Hypertherm PowerMax 105 is sending an ArcOk signal as soon as I send the signal to turn the arc on to the Powermax.
I will study the differences between mode 1 and 2 and will review if the PowerMax is set to work and such a way or if this is a problem on the Powermax.
As the Power Max always sends the Arc Ok signal, when the arc is not transfered to the part, QtPlasma does not try to start the arc again and the part program runs without cutting the part.
I will also try the recommended solution from the QtPlasma manual that tell us to make 3 turns with the power cable that goes to the plasma and use a reed switch inside those turns (as item 6 of the Plasma Cutting Primer for LinuxCNC Users Document).
Once again, thank you very much.