Announcement

Collapse
No announcement yet.

AC frequency harm 280DX?

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

  • AC frequency harm 280DX?

    Soon after I bought my Dynasty 280 DX I read something from a source I can't remember. The gist was using 400 HZ will damage boards in the welder. I've played conservative, not exceeding 250HZ. What's the truth? Will it damage the welder?
    Dynasty 280DX
    Bobcat 250
    MM252
    Spool gun
    Twentieth Century 295
    Twentieth Century 295 AC
    Marquette spot welder
    Smith torches

  • #2
    I am not sure why it would have a feature that is self destructive.

    Try googling and find that source and post it.
    Stainless process piping - welder & fitter

    Miller Dynasty 280DX
    Jet band saw
    Dewalt chop saw
    Assorted IR air tools and Metabos

    Comment


    • #3
      I can't seem to find it tonight. It was someone on one of the forums. Maybe while it is still under warranty I should try it. Would it put undue stress on the machine?
      Dynasty 280DX
      Bobcat 250
      MM252
      Spool gun
      Twentieth Century 295
      Twentieth Century 295 AC
      Marquette spot welder
      Smith torches

      Comment


      • #4
        Maybe incomming frequency, certainly not outgoing completely isolated hf freq

        Comment


        • #5
          Originally posted by cruizer View Post
          Maybe incomming frequency, certainly not outgoing completely isolated hf freq
          I don't remember the individual talking of HF. He was talking of turning the welding frequency to 400.
          Dynasty 280DX
          Bobcat 250
          MM252
          Spool gun
          Twentieth Century 295
          Twentieth Century 295 AC
          Marquette spot welder
          Smith torches

          Comment


          • #6
            Originally posted by cruizer View Post
            Maybe incomming frequency, certainly not outgoing completely isolated hf freq
            Just what i needed....

            Does that mean that using HF in reverse polarity could harm a machine ????

            Can it be done HF RP ? i have never tried it, is it used in some applications?

            Does it apply to old "dinausorus" like dialarc 250 ac dc hf ???

            needless to mention that i'm a tig noob

            Comment


            • #7
              Again, I ask, why would using a machine's features cause it to self destruct?
              Stainless process piping - welder & fitter

              Miller Dynasty 280DX
              Jet band saw
              Dewalt chop saw
              Assorted IR air tools and Metabos

              Comment


              • #8
                Might have been me...

                On Weldingtipsandtricks... I briefly related the experience of a customer who bought one when they were initially offered. He ran 400HZ and fried a board... Ran 400HZ again and fired the new board. Miller took the machine back and did indeed agree that it was a design issue. Never heard anything about it again. Perhaps they have solved the issue?

                Comment


                • #9
                  Jody has been running his at 400 Hz with no problem. I haven't ventured up there myself.
                  Mike Zanconato
                  Zanconato Custom Cycles
                  @mzank on Instagram
                  Dynasty 280DX
                  Meco Midget

                  Comment


                  • #10
                    Very possible. Like I said, they may have the issue fixed, OR they saw a defect in his machine ONLY. But the message to him was clear: Your machine cannot do 400hz. He is now a happy owner of a 350...

                    Comment


                    • #11
                      not a bad compromise
                      Mike Zanconato
                      Zanconato Custom Cycles
                      @mzank on Instagram
                      Dynasty 280DX
                      Meco Midget

                      Comment


                      • #12
                        I'll leave the question of HF on reverse polarity to greater minds than mine. The question of when you would use reverse polarity with TIG I pose to you. Reverse polarity would have limited application in TIG. It heats the tungsten real hot except at very low current. With SMAW or stick I doubt you want HF.
                        Dynasty 280DX
                        Bobcat 250
                        MM252
                        Spool gun
                        Twentieth Century 295
                        Twentieth Century 295 AC
                        Marquette spot welder
                        Smith torches

                        Comment


                        • #13
                          Originally posted by johnnyg340 View Post
                          On Weldingtipsandtricks... I briefly related the experience of a customer who bought one when they were initially offered. He ran 400HZ and fried a board... Ran 400HZ again and fired the new board. Miller took the machine back and did indeed agree that it was a design issue. Never heard anything about it again. Perhaps they have solved the issue?
                          Thanks for responding, I tried every search I could think of, but couldn't find it.


                          Jody says not much Earth shaking changes above 200 HZ but I wanted to see for myself. Logic says anything I can do to narrow the arc, concentrating the heat will give better penetration, melt what needs melting, and get me moved along quicker. Anything that shortens the time on the metal reduces HAZ and subsequently distortion.

                          As for the sound, I wear ear plugs, and I'm already quite deaf to high frequency sounds anyway. Still it's awful! I never knew what a happy, gentle sound I had from my 60 HZ Dialarc.
                          Dynasty 280DX
                          Bobcat 250
                          MM252
                          Spool gun
                          Twentieth Century 295
                          Twentieth Century 295 AC
                          Marquette spot welder
                          Smith torches

                          Comment


                          • #14
                            Link..???

                            Originally posted by johnnyg340 View Post
                            On Weldingtipsandtricks... I briefly related the experience of a customer who bought one when they were initially offered. He ran 400HZ and fried a board... Ran 400HZ again and fired the new board. Miller took the machine back and did indeed agree that it was a design issue. Never heard anything about it again. Perhaps they have solved the issue?
                            while interesting... that reference is not very useful without a link to the original posts on WeldingTipsandTricks... to understand the context...

                            pls post that link...
                            .

                            *******************************************
                            The more you know, The better you know, How little you know

                            “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

                            Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

                            My Blue Stuff:
                            Dynasty 350DX Tigrunner
                            Dynasty 200DX
                            Millermatic 350P w/25ft Alumapro & 30A
                            Millermatic 200

                            TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

                            Comment


                            • #15
                              Who's Jody?

                              Originally posted by WillieB View Post

                              Jody says not much Earth shaking changes above 200 HZ but I wanted to see for myself.
                              ???
                              Richard

                              Comment

                              Working...
                              X