help with ea1400 with 2 axis positioner, positioner point are not getting saved.

Hi i am new to this forum. So i just got a used ea1400 xrc 2001 robot with a 2 axis positioner (MPD500-A03). this is also my first time working with a robot with a positioner. The problem i am having is i can move the positioned and the robot. But when i run my program back the positioner does nothing, it just stays where ever it was last moved to. i need to robot and the positioner moments to be synchronized as i am welding automotive suspension control arms and i need the robot and the positioner to move together as i need it to wrap the arms with one continuous weld all the way around the tubes. Is something not set up correctly or is it user error. Any help would be much appreciated.

How do i do this? I have seen this before searching through menus but not sure how to switch to it.

i got it figured out. next question, does anyone have the manual for this positioner. its a MPD500-A03 on a xrc2001 control. Motomans website only has the manual for the nx100 version and not the xrc version.