AC Submerged Arc Process

[Soccer Man]

We've invested in an AC sub arc machine and having trouble using it? We've used DC for years without trouble. Is there some tips someone can share? We run a Lincoln N5A feeder / 1000 amp. AC/DC power source and single wire typically 5/32" size. We are mfg. pressure vessels.

[cruizer]

And what is it doing, running backwards or what exactly

[cruizer]

You do know that the logic and voltage boards have dip switches that have to be set for ac, usually I work on the ad/dc setups, few just run ac only

[charliehill]

as i know, many of the submerged arc welding flux could be used on DC and AC. that's means submerged arc welding process could adapt to both AC/DC. but there would be some difference on the parameter settings. Did you set suitable parameters for AC?