Converting character to configurable joints

Hey there,

as you might guess from the title I'm having some trouble understanding the relation between character joints and configurable joints. Essentially, I'm trying to convert all character joints on a ragdoll to configurable joints to have more control over it. Of course I want to keep the rotation limits during this. Now back to my question: How can I "translate" the limits I set up on the character joint using Twist and Swing limits to the configurable joints using X, Y and Z limits?

Thanks in advance,

Chelmney