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<DIV><FONT face=Arial size=2>Dear all,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>following the example about Feedback controller, I
have done a project ( enclosed ) in which the control function of a variable
speed pump</FONT></DIV>
<DIV><FONT face=Arial size=2>is controlled by Type 22. </FONT></DIV>
<DIV><FONT face=Arial size=2>I have followed the note about use of this type: I
have set the tolerance of convergence and the right ( I think)</FONT></DIV>
<DIV><FONT face=Arial size=2>component order </FONT><FONT face=Arial size=2>but
this type doesn't work (it doesn't calculate anything). </FONT></DIV>
<DIV><FONT face=Arial size=2>Besides this message appears in the list
file: </FONT><FONT face=Arial size=2>"The controller was stuck during 0
time steps. Note that you have set the Nstick < 1. In that</FONT></DIV>
<DIV><FONT face=Arial size=2>case the controller is stuck when further
oscillations would trigger the 'maximum number of iterations'
warnings."</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Could anybody tell me why this message appears? Do
I set anything wrong in the parameters or inputs of Type 22?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks a lot in advance.</FONT></DIV>
<DIV><FONT face=Arial
size=2>
Samuele.</FONT></DIV></BODY></HTML>