It seems that RF to FE power converters are not recognized as RF machines, would be nice to use this

have you got RedstoneFlux mod in the pack? Because the only way AW RF compatibility will work is when that mod is loaded. If you do then I guess the converters don't use RF capability which would be pretty puzzling to me how they would be RF compatible

actually just checked and they use the capabilities as expected as well as they only load rf blocks when redstoneflux is loaded. Are you actually connecting rf consumer to aw generators or rf producer to aw machines?

Oh, yeah, I didn't have Redstone Flux, it works now, thanks for the tip!