The way to make it work with a pulse reference is by acting as a follower. You make it act as a follower by invoking the gearing features. I haven't used this particular drive myself, so I can't give you any ladder logic.
The analog signal is a velocity command. When the drive is commanded to run, it will do so at a velocity proportional to the signal level of the analog command. When you interface the drive to a motion controller, the motion controller generates the analog velocity signal. As the axis approaches the target position, the motion controller decreases the velocity command. Once you get to the target position, the drive is commanded to run at zero velocity so it can maintain enough torque resist being pushed out of position.
When you make it act as a follower, it will generate its own velocity command based on the magnitude of the difference between its current position and the position of the master axis (the error).
If you have the hardware available, I suggest you try it out. If you don't have it, get in touch with your supplier to see if you can try your ideas on whatever demo equipment they have available.