The DM556 stepper drivers have opto-isolator step , direction & enable inputs are designed for 5V logic signals
( by adding external 2K resistors they can be connected to 24V outputs from a PLC )
which motion controller would you like to use ?
As long as it outputs 5V step ,direction & enable signals you only need to provide a low power DC supply for the motion controller
( the DM556 stepper drivers being powered the 48V DC supply )
John