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Howdy folks, forum newbie here.
I have intermediate welding skills and am good with electrical circuits, good with trouble shooting and following given advice and/or instructions.
I've run into a pair of problems.
Both of my welders have working for 8 years on 3 phase w/o any issues.
I recently moved and now have single phase 248V at my new shop. (yea, odd 248 V and each leg is 124V)
----------------
First issue:
My Millermatic 350 gives me a Help 7 code when I fire it up.
Code 7 reads:
Indicates input voltage malfunction (voltage
too high or too low) causing unit to
automatically shut down. Turn off input
primary power and check input voltage per
primary voltage rating of welder. Unit will
operate once input voltage is within
specification and power to unit is turned off
and back on.
I've checked voltage and I'm getting 248V across the main legs and 124 between the main legs and the neutral (which is correct as far as the wiring goes)
I've gone through troubleshooting - the voltage selection is on 230V, not 480.
So my question is: Is 248V out of range for the 230 setting? Is there some sort of issue running 248V and what can I do about this?
-----------------------
Second issue:
My Dynasty 350 fires right up on the same 248V single phase circuit that makes the MIG mad. No issues as far as turning it on and getting any sort of error. BUT, when I tried to lay a test bead, it acts as if the polarity is reversed. The arc was a funky yellow and the electrode melted to a nice round ball almost instantly. - sort of like when I used to set up TIG welding with an older unit (can't recall what it was 280? maybe?). I remember being taught to reverse polarity to make the tungsten a round ball and then reversing the polarity again to weld.
I'm 90% sure it's a setting on the Dynasty that I'm just overlooking, so a heads up on this would be great.
Thanks in advance for any advice or direction.
I have intermediate welding skills and am good with electrical circuits, good with trouble shooting and following given advice and/or instructions.
I've run into a pair of problems.
Both of my welders have working for 8 years on 3 phase w/o any issues.
I recently moved and now have single phase 248V at my new shop. (yea, odd 248 V and each leg is 124V)
----------------
First issue:
My Millermatic 350 gives me a Help 7 code when I fire it up.
Code 7 reads:
Indicates input voltage malfunction (voltage
too high or too low) causing unit to
automatically shut down. Turn off input
primary power and check input voltage per
primary voltage rating of welder. Unit will
operate once input voltage is within
specification and power to unit is turned off
and back on.
I've checked voltage and I'm getting 248V across the main legs and 124 between the main legs and the neutral (which is correct as far as the wiring goes)
I've gone through troubleshooting - the voltage selection is on 230V, not 480.
So my question is: Is 248V out of range for the 230 setting? Is there some sort of issue running 248V and what can I do about this?
-----------------------
Second issue:
My Dynasty 350 fires right up on the same 248V single phase circuit that makes the MIG mad. No issues as far as turning it on and getting any sort of error. BUT, when I tried to lay a test bead, it acts as if the polarity is reversed. The arc was a funky yellow and the electrode melted to a nice round ball almost instantly. - sort of like when I used to set up TIG welding with an older unit (can't recall what it was 280? maybe?). I remember being taught to reverse polarity to make the tungsten a round ball and then reversing the polarity again to weld.
I'm 90% sure it's a setting on the Dynasty that I'm just overlooking, so a heads up on this would be great.
Thanks in advance for any advice or direction.
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