[bikekat]

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]

Sounds like a bad resistance pot.

[bikekat]

thanks - is there a way of confirming or replacing? or is it a new pedal required?

[Poland308]

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.

[bikekat]

many thanks - will look into it (have ordered a new pot also)

[bikekat]

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]

Wired up in reverse.

[bikekat]

thanks. a little concerned that i could damage to the welder if i get it wrong. attached pic of pedal insides. appreciate any suggestions

[Demented]

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.

Blau = Blue
Rot = Red
Schwarz = Black

[bikekat]

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]

Got it sorted. Swapped the two outer wires on the pot.

[Poland308]

Nice work

[Demented]

Awesome!

[bikekat]

thanks for the help

[Robinsgarage89]

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?