Can someone please explain what the heck the UNITS are on the PID parameters?
For example, the post above mentions the P parameter being set to "3". Well, 3 what? 3%? 3 Seconds? 3 %/second?
I think if I knew what the numbers meant, it would be a lot easier to tune, because right now, there's no way I can get even the most basic estimation of what magnitude could be appropriate for the system in question.