I can say that if CamSoft was controlling the Galil, which in turn was controlling the drives and motors and accepting feedback from the drives, that Mach will do the same thing. Resolvers or not, it would make no difference.
Here is the best part... It will cost you nothing to try it.
Or do you not have these motors/drives on the machine currently?
I know you have the PMA24C motors. What is the drive amp model? Give me some specifics and I'll see if I can find out if the combo will work for sure. Tell me what is on the machine and/or what you want to put on the machine. Also, if you have some hardware compatibility questions, give Galil a call. Their tech guys are second to none.
Steve