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<p class=MsoNormal><span style='color:#1F497D'>Christopher,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Yes Type 2b can do the job.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Connect your “collector outlet
temp” to “upper input temp” and “average tank temp” to “lower input temp”.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Then set your “upper dead band”
to 5 and “lower deadband” to 0 (although in reality, you’d rather put a “lower
dead band” above 0 degrees, to make your pumping worthwhile, something like 2
for example) <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Regards,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>François Badinier<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#C0504D'>Development Engineer<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#00B050'>ICAX Ltd<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#00B050'>1 Hatfield House
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#00B050'>Baltic Street
West<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#00B050'>London EC1Y OST<o:p></o:p></span></p>
<p class=MsoNormal><span lang=FR style='font-size:8.0pt;font-family:"Courier New";
color:black'><a href="mailto:alan.kiff@icax.co.uk"><span lang=EN-GB>francois.badinier@icax.co.uk</span></a></span><span
style='font-size:8.0pt;font-family:"Courier New";color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=FR style='font-size:8.0pt;font-family:"Courier New";
color:black'><a href="http://www.icax.co.uk"><span lang=EN-GB>www.icax.co.uk</span></a></span><span
style='font-size:8.0pt;font-family:"Courier New";color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Francois<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> Haluf, Christopher
[mailto:christopher.haluf@siemens.com] <br>
<b>Sent:</b> 25 November 2009 13:59<br>
<b>To:</b> 'Francois Badinier'; 'Besana Francesco'; trnsys-users@cae.wisc.edu<br>
<b>Subject:</b> AW: [TRNSYS-users] Type-2b??? (part2)<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Dear
all!</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>It's
good to see that you are discussing this topic concerning Type 2b, because I'm
also having some problems to make this type do what I want it to.</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I
have a solarthermal system which is using a water tank in order to save
the heat. What I want to do is to control the pump in my system via Type 2b. I
want the pump to work only if the difference between the average tank
temperature and the outlet fluid temperature of the evacuated tube collectors
is more than 5K. Of course, the outlet fluid temperature of the collectors has
to be the higher temperature.</span><span style='font-size:12.0pt;font-family:
"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Is
it possible to use Type 2b in order to solve this problem or should I use
another controller? In this case, which one would be the best one?</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Any
help would highly be appreciated!</span><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p>
</div>
<p style='mso-margin-top-alt:6.0pt;margin-right:0cm;margin-bottom:0cm;
margin-left:0cm;margin-bottom:.0001pt'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'>Mit freundlichen Grüßen<br>
Christopher Haluf (</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Intern)</span><o:p></o:p></p>
<p style='mso-margin-top-alt:6.0pt;margin-right:0cm;margin-bottom:0cm;
margin-left:0cm;margin-bottom:.0001pt'><br>
<span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Siemens
AG <br>
Corporate Technology <br>
CT PS 3 <br>
Günther-Scharowsky-Str. 1 <br>
91058 Erlangen, Deutschland <br>
Tel.: +49 (9131) 7-24724 <br>
Fax: +49 (9131) 7-21339 <br>
<a href="mailto:christopher.haluf@siemens.com">mailto:christopher.haluf@siemens.com</a>
<br>
</span><br>
<span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:black'>Siemens
Aktiengesellschaft: Vorsitzender des Aufsichtsrats: Gerhard Cromme; Vorstand:
Peter Löscher, Vorsitzender; Wolfgang Dehen, Heinrich Hiesinger, Joe Kaeser,
Barbara Kux, Hermann Requardt, Siegfried Russwurm, Peter Y. Solmssen; Sitz der
Gesellschaft: Berlin und München, Deutschland; Registergericht: Berlin
Charlottenburg, HRB 12300, München, HRB 6684; WEEE-Reg.-Nr. DE 23691322 <o:p></o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=DE
style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><b><span lang=DE
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Von:</span></b><span
lang=DE style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Francois
Badinier [mailto:francois.badinier@icax.co.uk] <br>
<b>Gesendet:</b> Mittwoch, 25. November 2009 14:37<br>
<b>An:</b> 'Besana Francesco'; trnsys-users@cae.wisc.edu<br>
<b>Betreff:</b> Re: [TRNSYS-users] Type-2b??? (part2)</span><span lang=DE
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#7030A0'>Francesco<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#7030A0'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#7030A0'>Sorry I just missed one thing:<o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:36.0pt;text-indent:-18.0pt'><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#7030A0'>-</span><span
style='font-size:7.0pt;font-family:"Times New Roman","serif";color:#7030A0'>
</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#7030A0'>You have to set your “lower input temperature” to 20.5, as it is
now your fixed temperature to compare with.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#7030A0'>I forgot to do that in the modified project... sorry my bad.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#7030A0'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#7030A0'>However, you’ll see that the signal won’t go to 0 when it
reaches 22 C (in your schedule), as it has to strictly go over 22 for the
signal to switch to 0. So if you put in your schedule 23C instead of 22C,
you’ll see the signal switching.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#7030A0'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#7030A0'>Regards,<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#7030A0'><o:p> </o:p></span></p>
<p class=MsoNormal>François Badinier<o:p></o:p></p>
<p class=MsoNormal><span style='color:#C0504D'>Development Engineer<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#00B050'>ICAX Ltd<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#00B050'>1 Hatfield House
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#00B050'>Baltic Street
West<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;color:#00B050'>London EC1Y OST<o:p></o:p></span></p>
<p class=MsoNormal><span lang=FR style='font-size:8.0pt;font-family:"Courier New";
color:black'><a href="mailto:alan.kiff@icax.co.uk"><span lang=EN-GB>francois.badinier@icax.co.uk</span></a></span><span
style='font-size:8.0pt;font-family:"Courier New";color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=FR style='font-size:8.0pt;font-family:"Courier New";
color:black'><a href="http://www.icax.co.uk"><span lang=EN-GB>www.icax.co.uk</span></a></span><span
style='font-size:8.0pt;font-family:"Courier New";color:black'><o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoPlainText><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#7030A0'><o:p> </o:p></span></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText><span lang=EN-US>-----Original Message-----<br>
From: Besana Francesco [mailto:Francesco.Besana@eurac.edu] <br>
Sent: 25 November 2009 11:06<br>
To: trnsys-users@cae.wisc.edu<br>
Subject: [TRNSYS-users] Type-2b???</span><o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>Dear Trnsys-colleague,<o:p></o:p></p>
<p class=MsoPlainText>It is unbelievable but I have spend more than one hour on
that and still doesn't work...the point is:<o:p></o:p></p>
<p class=MsoPlainText> <o:p></o:p></p>
<p class=MsoPlainText>I would like to switch off a signal when the difference
between the High Temp (fix to 22 ) and Low Temp is less than 0 and switch on
again when the difference is higher than 1.5..are you able to do that?<o:p></o:p></p>
<p class=MsoPlainText> <o:p></o:p></p>
<p class=MsoPlainText>At the moment in my deck (attached) it seems that instead
off an hysteresis loop I have just a value limit 1.5 where is ON and OFF around
it!!!<o:p></o:p></p>
<p class=MsoPlainText> <o:p></o:p></p>
<p class=MsoPlainText>Thanks a lot and suggestions are well accepted<o:p></o:p></p>
<p class=MsoPlainText> <o:p></o:p></p>
<p class=MsoPlainText>Francesco<o:p></o:p></p>
<p class=MsoPlainText> <o:p></o:p></p>
<p class=MsoPlainText><o:p> </o:p></p>
<p class=MsoPlainText>No virus found in this incoming message.<o:p></o:p></p>
<p class=MsoPlainText>Checked by AVG - www.avg.com <o:p></o:p></p>
<p class=MsoPlainText>Version: 9.0.709 / Virus Database: 270.14.80/2523 -
Release Date: 11/25/09 07:31:00<o:p></o:p></p>
<p><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>No virus
found in this incoming message.<br>
Checked by AVG - www.avg.com<br>
Version: 9.0.709 / Virus Database: 270.14.80/2523 - Release Date: 11/25/09
07:31:00</span><o:p></o:p></p>
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