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Linuxcnc - plasma router - joint 2 flolowing error

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02 Feb 2021 14:06 #197428 by kofaki
Hi all,


i replaced the my bread board to 5-axis chinesse board and moving of all axis works perfect, the Z float switch too. Now i want use PROMA THC .... i set it and now try the test of function of THC. The signals UP/DOWN works in Hal meter ...but the moving of axis Z nothing.

Can you please help me ?

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02 Feb 2021 16:07 #197444 by tommylight
Did you set PlasmaC to Mode 2 ?
Uploading the config folder might help, so on the "config" tab click on "backup" and upload the resulting file.

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02 Feb 2021 17:02 #197453 by kofaki
Hi Tommy,

ok, thanks, i upload the config ...just moment

btw... i try cut without THC (ignore arc OK) .... and on the THC is 623V !!!!

I use this Plasma machine : magnum-pro.pl/welding/plasma-cutters/pla...-s-plasma-85cnc.html
(www.expondo.de/stamos-selection-b-ware-c...lotzuendung-20020079)

I connected the THC via 1:50 divider to CNC connector (pin 3 + 4) on plasma cutter. I thinked, that the CNC connector is for voltage divider ...

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02 Feb 2021 17:15 #197454 by kofaki
Here is config
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02 Feb 2021 17:51 #197455 by tommylight
Ahoj pane,
Some things seem way off:
Proma THC150 does not need a voltage divider
Getting over 600V on the THC got me baffled as there is no way it can show such high values that i can think of
One more thing i noticed on your pictures, the ARCOK is ON all the time, so invert it in the xxxxxxx.connections.hal file by adding or removing -not from the pin name.

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02 Feb 2021 17:52 #197456 by tommylight
Forget the ARCOK thing, that might be from THC in test mode.

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03 Feb 2021 01:48 #197503 by phillc54
Z axis won't move up or down unless you are cutting.

If you want to check if the up/down signals are getting from the Proma to plasmac then watch the following two pins:
plasmac.move_up
plasmac.move_down

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03 Feb 2021 12:36 #197543 by kofaki
Thanks, Phillc54 , yes, that works (both signals works in test mode of PROMA)

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03 Feb 2021 18:44 - 03 Feb 2021 18:53 #197583 by kofaki
Ok, i am back. :P :P

1) i tried set the PROMA THC voltage, but the voltage is very float (from 144 - 200V). If use 1mm think steel plate, then voltage is 162 - 164 V.
I set this voltage (163 V) to PROMA and start cutting ... "VAD lock" is active many times .... sometimes I see THC moving up or down ... and in many cases I have an error "program paused - float switch is active "or" ARC is not valid "..... only sometimes is the cut completed

In PROMA i have HYS 4V (+-2V), DELAY 0.5 and High voltage 200V.

2) i bought the Sheetcam software + post processor "EMC Plasma" , but in LinuxCNC i have problem with upload code (errors on line 6 and 11), what is please wrong ?
N0010 (Filename: koll.tap)
N0020 (Post processor: EMC plasma.scpost)
N0030 (Date: 03.02.2021)
N0040 G21 (Units: Metric)
N0050 G40 G90
N0060 F1 S1
N0070 (Part: koll)
N0080 (Operation: Inside Offset, Vrstva_1, T2: Plasma - male dily)
N0090 G00 Z10.0000
N0100 X185.6935 Y50.5301
N0110 Z3.0000

3) if i cut the square, than the dimensions of this are OK, but if i try cut circle, then the dimensions are very bad. What is wrong ?

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Last edit: 03 Feb 2021 18:53 by kofaki.

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03 Feb 2021 19:15 #197587 by rodw
Please use the Plasmac post processor for sheetcam here on the forum.

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