Cut50 Wiring

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21 Mar 2024 15:37 #296476 by BonoCNC
Cut50 Wiring was created by BonoCNC
Hello,
I have a small metalworking shop and I've built a small table for plasma cutting.
I bought a Chinese single-phase Cut50 generator that I intend to connect with THCAD.
The plasma is compatible with CNC.
How can I connect the plasma generator signal to THCAD for communication?
Can anyone provide a diagram or a datasheet?

Thank you.

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21 Mar 2024 16:17 #296477 by PCW
Replied by PCW on topic Cut50 Wiring
Does the cut 50 have a plasma  voltage output for
Torch height control?

 

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21 Mar 2024 18:00 #296484 by BonoCNC
Replied by BonoCNC on topic Cut50 Wiring
Not sure, the machine is the one in the attachments. 
I can connect without thcad because io will only cut a few 2mm material. 
Attachments:

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21 Mar 2024 19:01 #296490 by PCW
Replied by PCW on topic Cut50 Wiring
From what I have been able to gather, That is a HF start plasma source
and it does no seem to have any plasma voltage output for a THC
(are there any other connections available on the back of the unit?)

If the is no plasma voltage output, it means It would require
tapping into internals of the machine to be able to use a THC

This is not a trivial thing to do especially it you are not comfortable
with high power electronics.



 

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21 Mar 2024 20:10 - 21 Mar 2024 20:12 #296497 by BonoCNC
Replied by BonoCNC on topic Cut50 Wiring
I can do this, if youy can help me, i can send you some photos of the internals.
If it blows, no problem. I buy it to test because its low budget


This is the generator: 

www.aliexpress.us/item/3256803962595510....gatewayAdapt=glo2usa
Last edit: 21 Mar 2024 20:12 by BonoCNC. Reason: Miss inf

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21 Mar 2024 21:07 #296500 by PCW
Replied by PCW on topic Cut50 Wiring
A picture of the inside would be helpful

Note that if it is HF start, You will need very careful
grounding and shielding of all electrical connections
or you will have issues with the control computer and
motion components
 

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23 Mar 2024 15:04 #296580 by BonoCNC
Replied by BonoCNC on topic Cut50 Wiring
This is the cut50 inside.
Attachments:

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24 Mar 2024 12:13 #296618 by RIDO_JIMO
Replied by RIDO_JIMO on topic Cut50 Wiring
I have the same machine working manual, if someone knows how to use it cnc I will build a table.

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25 Mar 2024 09:08 #296694 by BonoCNC
Replied by BonoCNC on topic Cut50 Wiring
Do you have any scheme of what wires i need to push?

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25 Mar 2024 14:31 - 25 Mar 2024 14:32 #296720 by PCW
Replied by PCW on topic Cut50 Wiring
The HF transformer secondary  is the long flat wire coil in series with the torch connection.
The plasma voltage must be taken from the non-torch end of that coil. That point should
connect to a 2 or 3 MOhm  1W resistor insulated with heat shrink (inside the CUT50 box)
and kept as far as possible from the torch end of the HF transformer and then to the negative
THCAD input. The positive THCAD input should connect to the Table or work connection inside the
CUT50 BOX.

The two wires going to the THCAD inputs should be a twisted pair or coax
(if coax, the positive lead should be the shield)


NOTE: there are voltages present in a plasma source source that can electrocute you even
after power is turned off/disconnected. Beware that both the output and primary side capacitors
may retain a a lethal charge for a long time.


Also note that this is a HF start plasma source and will require very careful shielding/grounding
of the motion/control components to avoid erratic behavior or even damage to the control
electronics from torch starts.

 
Last edit: 25 Mar 2024 14:32 by PCW.

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