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Dynasty 200DX A/C Pulse
Posted: Sun Jul 13, 2014 12:37 am
by GlenC
Just started playing with my recently acquired 200DX ....
I don't know if I am missing something or a faulty unit. I cannot seem to get any Pulse on A/C.
I have tried many settings:
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PPS: from .1 - 60
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PEAK t: from 5 - 75
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BKGND A: from 5% - 50%
(YES, the pulser light is on)
The only change in arc character seems to come from A/C Frequency and A/C Balance... Pulse seems to work on D/C...
Glen
Re: Dynasty 200DX A/C Pulse
Posted: Sun Jul 13, 2014 5:18 am
by AKmud
You may not notice much of a change in arc character. You should be able to see/hear the pulsing when your pulse rate is low (<50 or so). I don't notice a significant change in the arc, but I can hear it and it generally requires a few more amps to get things done.
Re: Dynasty 200DX A/C Pulse
Posted: Sun Jul 13, 2014 10:59 am
by GlenC
Correct, but I couldn't see or hear any on/off pulse in A/C mode, only D/C..
Re: Dynasty 200DX A/C Pulse
Posted: Sun Jul 13, 2014 11:07 am
by Dblcorona
to illustrate the pulse settings in my class, I have the students set up at:
1 pps
95 peak
5 background
this will tell you if the pulse is working. No way to miss it.
Re: Dynasty 200DX A/C Pulse
Posted: Mon Jul 14, 2014 9:43 pm
by GlenC
Update, since the "deal"I got on this used Dynasty 200DX included a 90-day, full Miller Factory warranty, I dropped off the unit at the local Miller Authorized Service center... (the torch assembly went too! It's covered also and there is a kink and slight deformation in the power hose at the torch handle) ...
I should hear something Wednesday as to the action Miller will be taking. It has already been confirmed the unit is under warranty
Way better than having to pay for a repair... apparently Miller doesn't send out test/diagnostic boards. You buy a board (no returns) and only hope it is the faulty one, otherwise, on to the next!!!
Re: Dynasty 200DX A/C Pulse
Posted: Wed Jul 16, 2014 11:01 pm
by GlenC
Well my pulse problems were my fault! System tested okay. On another note, Miller is going to replace the torch power cable under warranty (air-cooled hose is kinked at both ends from use)...
As I can best figure, I was not inputting enough welding current to be able to see any pulse (novice on a coke can! ...
) I did manage to get some beads on the bottom of a coke can (really ugly) and I can tell I have issues with rod feeding skills! Doesn't really help to have only 1/3 of my left index finger and not as much coordination with the right hand... Well, guess I should keep a piece of rod handy while watching TV...