Announcement

Collapse
No announcement yet.

TIG Pedal acts like on/off switch... no amp control

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • TIG Pedal acts like on/off switch... no amp control

    hey all,

    i have a syncrowave 180 sd, six years old... as the title says, the pedal acts like an on/off button instead of amp control... just checking to see if anyone else has had this problem before. i'm working around it by turning the dial down after the work material heats up. no other problems with the machine... except having to replace the hf unit earlier this year... a few months after the warrantee ran out! thanks in advance!
    chris

  • #2
    Originally posted by sculptor666 View Post
    hey all,

    i have a syncrowave 180 sd, six years old... as the title says, the pedal acts like an on/off button instead of amp control... just checking to see if anyone else has had this problem before. i'm working around it by turning the dial down after the work material heats up. no other problems with the machine... except having to replace the hf unit earlier this year... a few months after the warrantee ran out! thanks in advance!
    chris
    Are you certain of your panel settings? Sounds like the machine is set to panel control.

    Griff

    Comment


    • #3
      Originally posted by griff01 View Post
      Are you certain of your panel settings? Sounds like the machine is set to panel control.

      Griff
      Yea sounds like a program setting, standard remote should be on for the petal.
      Mountain Metal
      Dynasty 200 DX
      Coolmate 1
      Miller Trailblazer 302 W/ Kohler
      Miller Suitcase 12VS Wire feeder
      Weldcraft 26 TIG Torch
      Miller 210
      Spoolmate 3035
      Thermal Dynamics 51 Plasma
      Victor O/A
      Jet 7x12 L Cooled Band Saw
      Delta Drill Press
      Dewalt Chop

      Comment


      • #4
        thanks for the replies, but it's not a panel setting. i took the pedal apart, nothing loose there.... took the left cover panel off of the welder, nothing loose there where the pedal cord screws in. sometimes, out of nowhere it starts acting like it should for a few minutes, then back to on/off. is there one wire in the pedal cord that would cause this to happen if it failed? or is it something in the panel?

        Comment


        • #5
          Ran into this problem too many times, you likely have a failed opamp on the circuit board, not allowing the remote path to operate, thus you are stuck in local.

          Comment


          • #6
            I just fixed the same problem with my Syncrowave 250....failed op-amp. Pedal works great now!
            --Anthony--
            Syncrowave 250
            Millermatic 200
            Millermatic 141
            Hypertherm Powermax 350

            Comment


            • #7
              the board in the machine or the pedal (i think there's one in the pedal?) thanks!

              Comment


              • #8
                The board in the machine.
                --Anthony--
                Syncrowave 250
                Millermatic 200
                Millermatic 141
                Hypertherm Powermax 350

                Comment


                • #9
                  is there a part # or is this something i can get from a place like mouser? thanks again!

                  Comment


                  • #10
                    You kinda have to know how to proper read a wiring diagram, how to do finite soldering and desoldering. If you haven't done it many times before, it is not a good idea to bother attempting it. Because you are asking for a part #, I'd guess this is the case.

                    Comment


                    • #11
                      I have a syncrowave 250 that does the same thing. I've read that the op amp is a likely culprit. Does anyone know how to determine which op amp on the board is the control for the remote?

                      Comment


                      • #12
                        Originally posted by ambulance tech View Post
                        I have a syncrowave 250 that does the same thing. I've read that the op amp is a likely culprit. Does anyone know how to determine which op amp on the board is the control for the remote?
                        You are probably better starting a new thread since this is 12 years old, and about a different machine. If you do, you'll want to provide the serial number so folks will know which manual and diagrams to reference.

                        I had this happen with a Syncrowave 250 a while ago after cleaning the inside with compressed air...one of the wires that goes from the shunt to the filter fell off so there was no amperage control....all of nothing.

                        Comment


                        • #13
                          As G Man mentioned, it could be a lot of things. His issue was on the current feedback (shunt or HD current sensor), but it could be on the user control side.

                          Comment

                          Working...
                          X