Nope, it's a static setting that does not even require a motor to be connected. Look at the Pololu schematic - it's a pot from logic power to ground, with the wiper providing the VRef to the chip. Nothing in the circuit onthe output side whatsover.
They were likely showing the measurements of the output to show how it tracked, but that is not necessary.
- Tim
Edited 1 time(s). Last edit at 06/24/2015 11:20PM by tadawson.