I'm trying to do a fatigue analysis in Abaqus. For my problem it seems a displacement controlled loading step and a load controlled unloading step (both static general, non linear) works best. My problem is that the solution differs in the displacement. As an example:

I would like my tip displacment to go from 0.1 to 1, to 0.1, to 1 etc.
Sometimes however, the tip displacement goes from 0.1, to 0, to 1, to 0, to 0.1, to 0 etc.
I understand this example is unclear, so please see my attached sketch for clarification.

I think this is due to all my loads being applied as a ramp. Is there any way to enforce my load to go straight from one step, to another without first going to 0 as an intermediate step?