- Thread starter raygomm53
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Master-of-none
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This thread has some good pictures that should help
It certainly does - a big thank you
Thank you the photos really helped. After the bridge rectifier and before the welding earth clamp is the item listed as "Inductance". In addition to the heavy winding to conduct the current is a lesser winding with two thin black wires...one goes to the motor control board , where does the other belong ?
The inductor or choke is a normal part of the DC output circuit of a transformer-based MIG welder. It limits the rate of rise of current on the initial short-circuit of the MIG wire, and controls the subsequent arc/melt cycles.
However, what is unusual is the additional "winding" ( ? ) on that core. Perhaps it is temperature sensor buried in the heavy winding...
The three push-on tags on the ED0317 board are AC mains Live, AC mains Neutral, and switched output from the relay ( to the primary of the main welding transformer ). If one of the thin black wires from the inductor goes to the PCB, which one of those three is it?
Other than the Part Number of the PCB, can you describe the Make & Model of the actual welder?
However, what is unusual is the additional "winding" ( ? ) on that core. Perhaps it is temperature sensor buried in the heavy winding...
The three push-on tags on the ED0317 board are AC mains Live, AC mains Neutral, and switched output from the relay ( to the primary of the main welding transformer ). If one of the thin black wires from the inductor goes to the PCB, which one of those three is it?
Other than the Part Number of the PCB, can you describe the Make & Model of the actual welder?
Thank you - the welder is at the place where I volunteer at the moment> I'll check my facts when I'm next there on Wednesday and photograph to be sure. I dont know which tag is which but I've placed the wires according to the photos in this thread . it joins this white wire at the bottom of the photo:
That white wire is one side of the AC mains. The second push-on tag, to the left and slightly above in that photo, is the other leg of the AC mains, and the third tag, above that, is the switched power out from the relay contact to feed the main welding transformer.
I would guess that the white wire is, or should be, the Neutral side of the AC mains. If so, it means that the mystery "thin black wire" from the inductor is connected to Neutral. I am no nearer to understanding why the inductor has those two thin wires....
I would guess that the white wire is, or should be, the Neutral side of the AC mains. If so, it means that the mystery "thin black wire" from the inductor is connected to Neutral. I am no nearer to understanding why the inductor has those two thin wires....
Thank you for the welder name & model.
These photos of the insides of a Supermig 150/5 do show the additional thin black wires at the inductor, but I still do not know what they do:
( Note there are additional wires on that machine for a 230v gas solenoid.)
These photos of the insides of a Supermig 150/5 do show the additional thin black wires at the inductor, but I still do not know what they do:
sealey supermig 150/5 solenoid wiring
Hi all, i have had a sealey supermig 150 for a while and decided it was due an upgrade so i ordered a euro torch and solenoid. the torch was easy to wire and works. The problem i have now is the wiring for the solenoid i have wired the earth to the earth and wired one cable to the neutral but...
www.mig-welding.co.uk
