[Equest-users] CAUTION: Variable Speed Drive FPLR???

Nick Caton ncaton at smithboucher.com
Thu May 6 10:32:13 PDT 2010


Thanks Carol!

 

I'm glad to see some supporting information to assure me this CAUTION is
likely not a big deal, but it still kinda irks me that this is message
is often the only thing between me and a perfectly blank ATTN report in
my models...

 

If anyone can offer some insight regarding this VSD curve message's
meaning and/or root-causes, I'd be very grateful to either figure out a
way to eliminate these CAUTIONS, or to otherwise be able to sleep at
night knowing I can provide an in-depth response regarding its meaning
and why it's not a big deal and ignore-able.

 

~Nick

 

 

 

NICK CATON, E.I.T.

PROJECT ENGINEER

25501 west valley parkway

olathe ks 66061

direct 913 344.0036

fax 913 345.0617

Check out our new web-site @ www.smithboucher.com 

 

From: Carol Gardner [mailto:cmg750 at gmail.com] 
Sent: Thursday, May 06, 2010 12:25 PM
To: Nick Caton
Cc: eQUEST Users List
Subject: Re: [Equest-users] CAUTION: Variable Speed Drive FPLR???

 

Here you go Nick. This is in your 3-63 data area as DOE-2.chm. There is
tons of info there. Cautions are the least of your worries.

ERRORS                      Diagnostics deal with problems in the input
that must be corrected before the simulation will execute. 

WARNINGS                 Diagnostics are concerned with input data that
can be used in the simulation but are probably erroneous (such as a
temperature input of 700 instead of 70.0). 

CAUTIONS                   Diagnostics are much less severe than
WARNINGS messages and deal with questionable input value that do not
significantly affect the results of the simulation. This is the default
level.

Regards,

Carol

 

On Thu, May 6, 2010 at 9:32 AM, Nick Caton <ncaton at smithboucher.com>
wrote:

On many projects, I've run into the following typical CAUTION in my SIM
ATTN report:

 

 

 
**CAUTION***************************************************************
*******

             In curve: Variable Speed Drive FPLR        the dependent
value

             is exceeding the limits.

             Value/Min/Max/First time:          1.257          0.100
1.000  12/31/24

 

 

It's always referencing this specific library VSD curve, and it always
occurs in the last hours of the very last day of the modeled year.  I've
seen it so much I'm pretty certain that particular value 1.257 is always
present too.

 

What are the implications here to the modeled behavior?  Is this caution
something of concern?  Is something off with the library curve?

 

I've always assumed that if something is only off in the last hours of
the modeled year, it shouldn't be a big deal - but it's bugging me that
I'm seeing this come up again and again and I don't know what it really
means...

 

~Nick

 

 



 

NICK CATON, E.I.T.

PROJECT ENGINEER

25501 west valley parkway

olathe ks 66061

direct 913 344.0036

fax 913 345.0617

Check out our new web-site @ www.smithboucher.com
<http://www.smithboucher.com>  

 


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