Let's say I buy a Fadal machine and I want to replace the controller with something modern. Not sure if this machine will have AC or DC drives. Haven't bought it yet.

Let's just focus on driving the axis motors for now.

Most modern controllers output step and direction signals and either expect the motors/drives to follow that, one way or another. Is there any place in the Fadal control system that would accept step/direction signals from a new controller system ?

I think I read that Fadal motors have either resolvers (DC motors) or encoders ("AC" motors). Is it possible to replace the Fadal motor driver boards with aftermarket drivers like a Gecko, or something similar ?

Another question... Are Fadal DC motors are brushed DC motors ? Are Fadal "AC" motors really brushless DC motors or are they something different ?

Thank you.