EU conversion from RF to IC2 EU-energy is not working at all.

IC2 uses its own energy network, you must have an EU storage (like MFSU) to connect it with FluxNetworks plugs/points

Ah sorry, OK
Connecting to any IC2 block is working, even when plug is connected to RF, when point is connected directly to IC2 maschine. The plug is not working when connected to a IC2 cable...

I tested, plugs can receive energy from IC2 cables. but points can't transfer energy to them. btw it is best to use Mekanism universal cables, they can work as IC2's cables and also RF ones.