Hi Larry,
I'd be more than happy to.If you associate the abbreviations for the different polarity settings with the actual connections it may be of help to you. DC reverse or DC+ as it is called is also referred to as DCEP. (DC electrode positive) DC straight or DC- is referred to as DCEN. (DC electrode negative) When distinguishing between the two polarity settings this is what you must bear in mind. With DC+ settings, the heat generated by the arc is divided in the following way between the electrode and the work. A full 2/3rds of the heat is in the electrode and 1/3rd in the work. DC- results in exactly the opposite effect. You will place 1/3rd of the heat in the electrode and 2/3rds in the work. On AC polarity, the heat generated is equally divided. A full 1/2 of the heat is placed in the electrode and 1/2 in the work. It helped me to remember the correct placement of the welding cables in their respective configurations by thinking of their arrangements in terms of the DCEP and DCEN descriptions. I hope it will do the same for you. Someone else may have a better idea that will work for you. I tell people that I'm not smart enough to keep things truly simple. If I had invented the wheel, it wouldn't be just round and roll. It would have at least 30 moving parts.
Steve
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