Check your listing file (Clculate - Open - List file) to be sure that all of your inputs have converged at every time step during your simulation.
If there's no warning, your simulation seems to be numericaly right. If not, check your model to catch the problem or increase the number of interation before warning in control card to see if inputs converged.
Best regards
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Adrien
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Le 07/07/2010 17:21, caria.roberto@tiscali.it a écrit :
dear Trnsys users,
I'm simulating a solar assisted heat pump system; the simulation
stops at the beginning and writes a lot of messages like this:
Warning TRNSYS Message 441 : The inputs to the listed units have
not converged at this timestep. The values at the last iteration will
be used and the simulation will proceed. Reported information :
UNITS: 27 16 22 23 34 17.
Error TRNSYS Message 450 : The maximum number of warnings
allowed per simulation has been exceeded. Please fix these warnings or
increase the limit on the number of warnings allowed per simulation
(LIMITS command) Reported information : Not available
If I change the parameters 14 in the Control Card ("BEFORE ERROR -
new value: 900 instead of 30) the simulation goes on.
Are results still correct?
Thanks
Roberto
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