Very useful video, It's a shame that official Siemens videos are just useless as their manuals. The "Nuts&Bolts" as you call it from 29:00 were the cause for 3 days of mad guessing. It was only solved upon watching this video. Still, I am struggling with acceptance test, I can't figure out how it can be skipped, or why you say "not needed in V15". The inverters keep outputing the error: acceptance test needed.