At a data sample rate of 133 kHz, a backstepping effect is too small to be noticed! Consequentially, we state that the backstepping effect does not influence the constancy and smoothness of velocity. However, there are other factors that directly influence the velocity.
Constancy of Velocity at a Microscopic Level
With the entry level E-871.1A1 motion controller, the selected velocity is reached by adjusting the operating frequency. Adjusting the frequency means that the voltage profile of a single step remains constant with pauses in between. The E-873 controller offers more sophisticated velocity control.