Tig welding tips, questions, equipment, applications, instructions, techniques, tig welding machines, troubleshooting tig welding process
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bikekat
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    Fri May 25, 2018 1:44 pm

Hi - new here (and to tig welding).
Bought a chinese pedal for my LCD Vision ACDC 200PM (chinese with a German stamp on side). As soon as the pedal is plugged in the amps are pretty much uncontrollable - jumping around. AMPs go down when i push the pedal down. Also doesnt shut off with any consistency when i release pedal. Anyone had this experience? Welder works fine without pedal. Thanks
Poland308
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    Thu Sep 10, 2015 8:45 pm
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    Iowa

Sounds like a bad resistance pot.
I have more questions than answers

Josh
bikekat
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    Fri May 25, 2018 1:44 pm

thanks - is there a way of confirming or replacing? or is it a new pedal required?
Poland308
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    Thu Sep 10, 2015 8:45 pm
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Most manuals will tell you what pins in the pedal plug are for the resistance pot. And what ohm range it is. Then you can just check it with a multi meter.
I have more questions than answers

Josh
bikekat
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    Fri May 25, 2018 1:44 pm

many thanks - will look into it (have ordered a new pot also)
bikekat
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    Fri May 25, 2018 1:44 pm

replaced the pot. still working in reverse. Random current changes seem to be eliminated if i turn the dial on the pedal up full. but the amps decrease when i push the pedal down. thanks again
Demented
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    Sun May 06, 2018 11:51 pm
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Wired up in reverse.
"Your welds should sound like bacon. If your welds smell like bacon, you're on fire." - Uncle Bumblefuck (AvE)
bikekat
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    Fri May 25, 2018 1:44 pm

thanks. a little concerned that i could damage to the welder if i get it wrong. attached pic of pedal insides. appreciate any suggestions
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pedal inside
pedal inside
20180610_110514~01.jpg (59.9 KiB) Viewed 3200 times
Demented
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This is what they're saying is for your welder, but it looks like you have the wire colors of the 7-pin style foot pedal.
Image
Blau = Blue
Rot = Red
Schwarz = Black

Image
"Your welds should sound like bacon. If your welds smell like bacon, you're on fire." - Uncle Bumblefuck (AvE)
bikekat
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    Fri May 25, 2018 1:44 pm

many thanks. yes my welder is 2 + 3pin (AC/DC TIG-200PM). The pedal is also a 2+3pin. Will hopefully get it sorted. Thanks again
bikekat
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    Fri May 25, 2018 1:44 pm

Got it sorted. Swapped the two outer wires on the pot.
Poland308
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Nice work
I have more questions than answers

Josh
Demented
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Awesome!
"Your welds should sound like bacon. If your welds smell like bacon, you're on fire." - Uncle Bumblefuck (AvE)
bikekat
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    Fri May 25, 2018 1:44 pm

thanks for the help
Robinsgarage89
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    Thu Apr 29, 2021 8:51 am

Hi bikecat can you send me the diagram for your tig pedal? i think we have the same issue with the tig pedal. If i insert the 3 pins to my welder it just goes to 160 amps,pressing the pedal goes to max,cannot set the ideal amps i want to use , i check the the 2 10k pots it works well.can you help me?
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