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Lorch ISI 5cl problem

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Lorch ISI 5cl problem

Postby gabyh » Sun Sep 24, 2017 4:32 am

I have one Lorch welding machine like in title and i need some help
i have a schematic and part list from partner.lorch.biz but these is a general schematic of Lorch ISI 5CL like these in photo
my invertor don't have the pcb or something underside of front case like these in photo.
In attached photo, in front of case are 2 potentiometer one for current and another one like thermal switch.
I need photo of this pcb or back side of front case with connection of potentiometer and indicator leds.
Attachments
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gabyh
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Re: Lorch ISI 5cl problem

Postby gabyh » Wed Sep 27, 2017 7:13 am

This is my inverter.
I don't known what is missing from the backside of front panel.
From photo of big pcb you can see a empty connector with five wires.
Some wires go to 230/400v switch and another 3 wires go to 725.1348.0. pcb.
I need a internal photo backside of a front panel if anyone has one.
Attachments
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20170927_101305.jpg
20170927_101305.jpg (127.7 KiB) Viewed 206 times
gabyh
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Re: Lorch ISI 5cl problem

Postby Poland308 » Wed Sep 27, 2017 9:16 pm

I've never seen a welder quite like that. Does it work at all? Is it possible that the plug is for an unused option that your welder didn't have to start with?
I have more questions than answers

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Re: Lorch ISI 5cl problem

Postby gabyh » Thu Sep 28, 2017 10:53 am

is missing a module pcb and i need photo of good welding machine to identify
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Re: Lorch ISI 5cl problem

Postby Poland308 » Thu Sep 28, 2017 6:04 pm

Was this a machine primarily marketed in Germany?
I have more questions than answers

Josh
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Re: Lorch ISI 5cl problem

Postby gabyh » Fri Sep 29, 2017 8:40 am

I think so
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Re: Lorch ISI 5cl problem

Postby ldbtx » Fri Sep 29, 2017 3:41 pm

Is this a restoration project, or is it supposed to be your primary welder? Or both?
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Re: Lorch ISI 5cl problem

Postby gabyh » Sat Sep 30, 2017 2:15 am

True it's a restoration .I have another old small Mini weld 130A inverter by E.W.S. and a classical AC toroidal welding transformer but this it's to powerfull to my 230 line and can use with 4/5mm electrode without problem He has a 4 steps from 28/29v, 49v, 56v, 64v and 200 ampers on second step...who known on last one..i don't try in this
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Re: Lorch ISI 5cl problem

Postby ldbtx » Sat Sep 30, 2017 6:37 am

OK, good. At least you can still weld while we try to get the Lorch mystery solved. ;-)
Miller Bobcat 225
Tweco Fabricator 211i
AHP AlphaTIG 200x
Lincoln SP-135+
Hypertherm Powermax 30 Air
ProStar O/A torch
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Re: Lorch ISI 5cl problem

Postby gabyh » Sat Sep 30, 2017 2:56 pm

You are right. I can welding anything with thickness and if i need to weld a small steel or aluminium i don't. I'm awayting a respons next week from a dealers of lorch in my country.
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