Yes it will.
You have to get the input voltage right to start. Usualy there is a transformer on the floor of the cabinet on Fanucs that is a multi-tap. It will also have the output voltage required printed on it.
The drive will control the motor w/a single pulse or 0 to 10 vdc.
The only feedback to the drive is the tachometer. So the drive knows that the motor has moved.
The encoder then will feed your read out in the NC.
So yes you can control it with your computer like a stepper motor.
Cant see pix too well but lookin at the screws on the bottom looks like 3 inputs, 3 output, 2 were the 0 to 10 + and -. OR! The tach. And the Speed control went somewhere else. Didnt see where the tach feed back goes.
You do know that is all 3 phase stuff?
Have fun... Jim