Most controllers will display the anticipated position, not the actual servo position, if this applies to this controller, then if the display decreases rate and reaches zero before the axis has stopped moving slow, then this could be a load/friction problem causing a following error, if the axis moves slow and the display arrives at zero as the same time as the servo stops, then this would indicate that the controller was actually commanding this slow stop.
One way to test if the display is the anticipated position.
Remove a servo power connector, turn the handwheel on low increments for that axis and see if the display runs, at some point it should go into following error alarm.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.