Martin.
It has nothing to do with air cooled or water cooled only the make of the inverter.
I can't comment on what gets set first, those instructions I posted came off CNC zone on a rather long thread about getting these running and it seemed to be the concencus that they worked.

I do have a couple of the Chinese ones here but boxed up and not fitted to anything. The ones I am using are IMO's which only date back to when we used to fit them on a range of machines we used to make and totally different on parameters.

If you fine PD013 has to work this way can you post it and I'll amment my text file as I often give it out.
So far no one has queried it but then again just because you publish something you don't know if anyone follows thru.