If you disconnect the wires from A01 and 5V0, then measure the output between those terminals on the AXBB unit with a volt meter what happens? Typing different S values into the MDI window such as S500 S10000 S24000 should show different voltages which relate to the speed requested. If this is not working it must be the software configuration?
I think this needs to be right first then you know that is working and you just need to connect to the VFD.