Stick Welding Tips, Certification tests, machines, projects
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gabyh
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    Thu Sep 21, 2017 10:45 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.
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gabyh
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    Thu Sep 21, 2017 10:45 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.
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Poland308
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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

Josh
gabyh
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is missing a module pcb and i need photo of good welding machine to identify
Poland308
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Was this a machine primarily marketed in Germany?
I have more questions than answers

Josh
gabyh
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I think so
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Is this a restoration project, or is it supposed to be your primary welder? Or both?
Miller Bobcat 225
Tweco Fabricator 211i
AHP AlphaTIG 200x
Lincoln SP-135+
Hypertherm Powermax 30 Air
ProStar O/A torch
gabyh
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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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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
gabyh
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    Thu Sep 21, 2017 10:45 am

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.
gabyh
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After an e-mail discussion with a HELPDESK@lorch.eu, I realized that there would be another pcb-level manual service for those inverter component modules relative to that handbook in German but he haven’t the permission to send out detailed electrical schematics of the pcb’s...so i think the only chance is to find another persons who have this machine and to make a photo of this missing pcb 650.5130.0 pc-board GLE, an tomake a schematic from this photo
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The current lineup of Lorch are very nice power supplies. Hope you get it figured out and repaired..
Pete



Esab SVI 300, Mig 4HD wire feeder, 30A spool gun, Miller Passport, Dynasty 300 DX, Coolmate 4, Spectrum 2050, C&K Cold Wire feeder WF-3, Black Gold Tungsten Sharperner, Prime Weld 225
gabyh
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For moment i can't make him, because i don't find this module at good price. At a local dealers of lorch in my country the price of module is ~450E with TVA. At this price it's not oportunity to make him.
I think the last chance is to find a user who have this model machine and to make a good photos of this module from side/back side of a pcb and to make a reverse engineering.
Poland308
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Due to obsolescence, sometimes it’s time to abandon not so old machines.
I have more questions than answers

Josh
olek
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gabyh wrote:After an e-mail discussion with a HELPDESK@lorch.eu, I realized that there would be another pcb-level manual service for those inverter component modules relative to that handbook in German but he haven’t the permission to send out detailed electrical schematics of the pcb’s...so i think the only chance is to find another persons who have this machine and to make a photo of this missing pcb 650.5130.0 pc-board GLE, an tomake a schematic from this photo

I suggest you to give a call during holidays, even in large companies you can sometime join a higher ranked person that way, one that can afford to send you detailed manual of sketch of a disrupted model, of that will try to help you as it is not its primary function.
Pianos , restorer and tuner
Dedicated to learn welding since april
slowly learning ;) not complaining of doing beads and beads
pro inverter PROGYS 200 FV PFC CEL+tig lift
OA Oxyflam 1000 cutting and welding gas torch
gabyh
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I think ..i have to wait some time and to find one with another probleme and to take this module
gabyh
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I'm searching for the schematic/diagram of this module or to buy another one from a defective machine.
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