Ultra 205 foot pedal use

[docweathers]

I have just gotten around to learning to use the foot pedal on my ultra 205. I plug the pedal in, set amperage knob all the way down (left) and set the rocker switch to Remote. Even at the most minimal depression of the pedal the torch is full heat... like probably 200 amps. which just fries the 14 gauge I am trying to weld. I can weld this stuff just fine if I use a 10 or 15 amp panel setting, which produces a much smaller flame than the minimum I can get the pedal to give me.

What am I doing wrong?
How do I get the pedal to give me very low amps?

[brianscott]

Sounds like you have the same problem that I have with my LX225.
Mike from service told me it was a (4053) chip.
I'd contact service.

Brian

[performance]

Not sure that is the problem here. There are two different pedals for the 205 floating around out there. It is possible they got mismatched. Ray can help confirm (or deny ) which pedal you have. Little harder to figure out which one you should have. Its a transition thing and some may have gotten mixed up.

[Ray]

I haven’t been able to absolutely confirm this, but it lookslike some changes were made to the 205, 255LX and iTig200 that requires a different style pedal than was shipped with them.

It is wired reverse from the previous pedal. So stepping down with reduce the amperage rather than increase it, hence full output right out of the gate.



I’m still waiting for conformation and a way to identify the two or three different type pedals, and what goes with what, hopefully by serial number.

I thought I had relayed that to everyone affected. Sorry if I missed some.



As a note if you can control the amperage at all, even backwards it’s usually not the 4053.

[performance]

Mike can comment on this, but I believe a while back he ran into a couple of pedals that worked this way, but it was a reversed wire and switching the wire around fixed it.

[Tritium]

I better check my foot pedal, I haven't even tried it since I got my PU205P a few weeks ago.

Edit: Mine works fine.

Thurmond

[everlastsupport]

On the foot pedal pins 3 and 5 can be reversed on most pedals if for some reason it is working backwards. Like Mark said, we had a few many months ago. I have not had a call like this yet.

BrianScott's issue is not the same. His is something different that we have not seen before and I think it is related to the 4053 circuit.

I will get with Ray today and get caught up on the pedal issue. Could be wrong pedals in boxes OR the factory messed up on the wiring. I know Ray is working on it.

[worntorn]

Might want to make sure the rack is working properly with the gear on the POT.

I had the rack move away from the POT gear on the back stroke. The result is that rack slips on the gear and the POT stays turned up to some high amperage, which now becomes your starting amperage. In my case the starting amps went higher and higher on each depression of the pedal until the start amps were more or less full power.

Just take the base off the foot pedal, then spring the rack just clear of the plastic gear. See if the POT is fully rotated back to the zero position. If not then rotate it back, engage the rack and try welding.

If this is the problem it may be as simple as tightening the little screw that secures the rack, that is all that my foot pedal required.

Glen

[cavedweller29]

Hi all, I am having a similar problem with my PU205. When using the finger control with machine set on "panel" everything seems to work fine. When I attach the foot pedal and set the machine to "remote" it blows right through the 1/8" material no matter what the amp setting. Just for S & G's , I set the machine on panel while using the pedal. Using it that way, it seems to operate at the correct amperage but there is no ability to ramp down (or up), it just operates at the set amperage. I just noticed the problem recently as I normally use the finger control. Any suggestions?