On Wednesday 04 February 2004 22:03, Roy Vegard Ovesen wrote:
> On Wed, 04 Feb 2004 15:44:15 -0600, Jon S Berndt <[EMAIL PROTECTED]> wrote:
> > I'm wondering if a PID controller is only marginally better than a PI
> > controller. What if you remove the "D" control altogether?
>
> That would crash the algorithm with a divide by zero. I've prepared a
> patch to make it possible to set Td to zero and completely remove the
> derivate action.
The tuning docs say
Eliminate integral and derivative action by setting the
derivative time, $T_{d}$, to its minimum value (zero) and the
integral time, $T_{i}$ to its maximum value."
I read that as saying that I should start by setting Td to zero.
error in the doc?
LeeE
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