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Old 08-24-2008, 03:01 PM
VW cat VW cat is offline
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Default Scrap Invertron 300 Canox welder

I've done it again, found another scrap welder that looks almost all there. I'm not really sure what this model is for, maybe a power supply for a remote mig gun, not sure. On first inspection, there are 8 detached wires from the control board on top, that go to PM3 and PM4, below. Both of these black plastic units have been pried apart. They have part#'s on them. I see it's set up currently for 230V single phase.

Should I scrap it? You out there GWIZ? Phil
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Old 08-24-2008, 03:40 PM
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Sell it to Bobthewelder.
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Old 08-24-2008, 04:11 PM
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Do you know any history? Where did it come from? Do you have the covers?
lotsa luck.
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Old 08-24-2008, 05:06 PM
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Funny guy there Cutter! That thing is way too modern for me anyway!
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Last edited by Bobthewelder; 08-24-2008 at 08:06 PM.
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Old 08-25-2008, 02:55 AM
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I would not scrap it.
I think it's worth more in it's current shape then what you will ever get for the scrap price.

Looks like you can use it for a stick welder or MIG if you have a feeder.
Unfortunately it doesn't appear to have AC for welding Aluminum like your other welder.


It maybe one of the first inverter welders.
Which means It does not appear to have a computer too screw things up.
In other words It's probably the easiest of the inverters to fix in comparison to the new junk. of course not as easy to fix as your other welder was.

In a trouble shooting sense.
The 4 black power blocks IGBT's (Insulated gate bipolar transistor) would be the first suspects and may be the only thing wrong with the welder. the capacitors should also be checked.
I would say their asking alot from that heatsink their/IF mounted on.

===
Somebody probably opened it up found out that one or more of the IGBT's are bad, Priced them at $100 or more each and decided to buy a new machine. that was then.

Now in time.
Used IGBT's have been showing up on e-Bay starting at $10.00 each.
I have a hand full of them but I doubt mine have the amp ratings you may need.

Post the numbers of all the IGBT's and the manufactures names of them and I'll see if I can find the ratings.
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Old 08-25-2008, 05:36 AM
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I did a quick Google and Canox, a gas supplier, is now Linde Canada.

There is no help on their website but their is a used welder for sale that says "Canox (Miller)". It might be a private label Miller

So maybe some of the Miller guys could comment.
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Old 08-25-2008, 05:52 AM
bunkclimber bunkclimber is offline
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Default private label inverter

Quote:
Originally Posted by RancherBill View Post
It might be a private label Miller

So maybe some of the Miller guys could comment.
front panel graphics,lettering and symbols look to be the same as Miller.Case design and layout very similar to a Miller Maxtron Inverter welder(power supply) Top circuit board in photo is driver board,white and red leads going to second down level are outputs to driver IGBT transistors.Make sure all relays are firmly seated in sockets.Check to see that all leads and plugs are seated in sockets.There may be software to help you diagnose problems with this unit-Miller has 'expert program' diagnostic software available-contact your local rep for info,or call Miller directly.
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Old 08-25-2008, 07:50 PM
VW cat VW cat is offline
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Thank you everyone for all the info on this machine. I've read every reply carefully and will try and answer some questions..This machine came from a repair shop that a friend of mine bought. I believe it was there when he came. My son is starting his 2nd year as electrical technician, so he's interested, hopefully more so, as we learn more, if you know what I mean.

The IGBT's have the part # IXGQ 50N60Y4 GN77060 Q1Y4, on the other side is stamped 838A. I'm sorry, I only checked the part # on the 2 that have been pried apart. I had my son look the lower levels over carefully for signs of burnt wiring or components and the board on the top level looks good as do the relays from the outside. Could not find a manufacturer name, and yes, I have the covers. Anyone know what IGBT's I should be looking for? What do you think GWIZ? Phil
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Old 08-26-2008, 01:06 PM
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What did they repair in this shop ?
Maybe there's a manual in the same shop ?

I'm thinking over the options, before you start looking for parts.

You need to confirm that all 4 of the IGBT's are the same.
They appear to be rated 600 volts at 50 amps. there's still some ifs.
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Old 08-26-2008, 02:12 PM
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The part number you posted IXGQ 50N60Y4 is almost a "good" part number.

It is made by IXYS.

The part looks like a custom for Miller. I'd contact their IXYS support to see if there is a cross or substitution.

service@ixyspower.com
408-457-9000
F: 408-496-0670

That series is also second sourced by Fairchild Semiconductor . Here's an example SGL50N60RUFD

The parts look cheap, under $15. I would make really sure that your tech know what they are doing before they start subbing parts.


Bill
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Last edited by RancherBill; 08-26-2008 at 02:18 PM.
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