Yes, these are very high end (expensive) motors and drives. I have three Ultra 100 series 2KW drives for each of these and they will take step/dir as inputs for getting your system up an running fast. They also accept +/-10V analog (16bit) inputs and have encoder outputs so you can hook them up to a motion control card later on down the road.
Here is the PDF for the F-Series motors:
http://www.ab.com/motion/ec/f_series.pdf
Here is the PDF for the Ultra 100 series drive:
http://www.ab.com/motion/drives/1398-1.0.pdf