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<div class="moz-cite-prefix"><br>
This is probably not the breaker at fault. Could be, but just
doesn't seem like the only thing<br>
I would suspect.<br>
<br>
Do you know if the generator might be turning on and charging the
battery through the<br>
inverters at this time in the morning ? Since you were talking
about the AGS it makes<br>
me wonder... That would be a good clue.<br>
<br>
There is a possibility that a simple (you know how "simple" goes
sometimes !) adjustment that<br>
can be done on the Classic if it turns out to be, say, a surge in
battery voltage from the generator<br>
starting up and causing a reverse current through the battery
terminals... The inherent circuit design of<br>
higher efficiency converters can cause this. Send me / us an
email if you would like to try that. <br>
This is done through a special communications mode using the MNGP
display.<br>
<br>
Also, is this a new system or has it been running for a while and
just now seeing this problem ?<br>
<br>
boB<br>
<br>
<br>
<br>
<br>
<br>
On 10/29/2015 11:13 AM, <a class="moz-txt-link-abbreviated" href="mailto:boB@midnitesolar.com">boB@midnitesolar.com</a> wrote:<br>
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<blockquote cite="mid:563261B4.3070908@midnitesolar.com" type="cite">
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You don't want to drive for hours and hours to do something that
might not fix the problem.<br>
<br>
Without knowing exactly what is happening, I would bring a spare
Classic and also a new breaker<br>
which I think I heard we were sending you....<br>
<br>
If the Classic is plugged into the internet, there is the
possibility of monitoring it to see what is<br>
going on just before the breaker trips. I would just bring
another one in this case if you have one...<br>
Otherwise, call our support and see if there is something they
can do to help in this regard.<br>
<br>
Strange things do happen in this industry ! Troubleshooting
isn't so bad as long as you don't have<br>
drive or take a helicopter a long ways just to find that the
unit is turned off.<br>
<br>
boB<br>
<br>
<br>
<br>
On 10/29/2015 9:55 AM, Brian Teitelbaum wrote:<br>
</div>
<blockquote
cite="mid:b34310cefd3944842e1001f1326665a4@mail.gmail.com"
type="cite">
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Daniel,</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Very
strange problem.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">While
I agree that you should try replacing the 100A breaker, I
doubt that it’s the problem. Why would a breaker trip at
low amperage in the morning, but not trip at noon when the
amperage is higher? </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">At
early morning turn-on, the voltage might be too high, but
high voltage is not going to trip a breaker. Current trips
a breaker, not voltage.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">My
guess is that something is going on inside the Classic
controller. Larry’s “wild guess” might be on the mark. Do
you have another Classic to swap out with?</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Brian
Teitelbaum</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">AEE
Solar</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
RE-wrenches [mailto:<a moz-do-not-send="true"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Daniel Tittmann<br>
<b>Sent:</b> Wednesday, October 28, 2015 3:05 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Classic 150 100 amp
utput breaker tripping?????</span></p>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">An update on this issue:</p>
<div>
<p class="MsoNormal">On my initial visit to diagnose this
problem I changed the AGS settings higher volt start and
% state of charge start. The report from the client is
that this has fixed the AGS issue. So now I am just
dealing with the 100 amp breaker tripping. </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">The trip time from the client is when
the sun hits the panels and once reset for the day it
will not trip until the next morning. What could cause
this? </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">You are all right that the first step
it changing out that breaker that will be the first on
the list when I am back on site. I hope that is the
only issue because as usual this system is 2 Hrs from
the shop with no cell or internet coverage.</p>
</div>
<div>
<p class="MsoNormal">Thanks for your input.</p>
</div>
<div>
<p class="MsoNormal">Cheers-</p>
</div>
<div>
<p class="MsoNormal">Daniel</p>
</div>
</div>
<div>
<p class="MsoNormal"><br clear="all">
</p>
<div>
<div>
<div>
<p class="MsoNormal">Daniel Tittmann </p>
<div>
<p class="MsoNormal">CTO</p>
</div>
<div>
<p class="MsoNormal">Greenwired</p>
</div>
<div>
<p class="MsoNormal"><a moz-do-not-send="true"
href="http://www.greenwired.com" target="_blank">www.greenwired.com</a></p>
</div>
<div>
<p class="MsoNormal"><a moz-do-not-send="true"
href="mailto:daniel@greenwired.com"
target="_blank">daniel@greenwired.com</a></p>
</div>
<div>
<p class="MsoNormal">707-923-2001 (office)</p>
</div>
<div>
<p class="MsoNormal">707-206-5088 (Cell)</p>
</div>
</div>
</div>
</div>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">On Mon, Oct 26, 2015 at 10:25 PM, Mac
Lewis <<a moz-do-not-send="true"
href="mailto:maclewis1@gmail.com" target="_blank">maclewis1@gmail.com</a>>
wrote:</p>
<p>Hi Daniel,</p>
<p>Do you know what the error is on the AGS? What are the
start set points that you have? Jay could be on to
something if the battery voltage is collapsing before
the generator can start, the cc current could be high.
Do you know specifically what time of day the breaker is
tripping?</p>
<p>I'd check the Midnite logs and consider starting the
generator sooner. Is there large voltage swings (this
could indicate bad battery or large load)? Make sure the
wire is cleaned and torqued properly onto that breaker.
</p>
<p>How big is the battery bank and what is the tilt and
azimuth of the panels?</p>
<div>
<div>
<div>
<p class="MsoNormal">On Oct 26, 2015 11:05 PM, "Jay"
<<a moz-do-not-send="true"
href="mailto:jay.peltz@gmail.com"
target="_blank">jay.peltz@gmail.com</a>>
wrote:</p>
<div>
<div>
<p class="MsoNormal">Hi Daniel</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Is this a new classic with
OCP? Or maybe they don't have it anymore?</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">What it sure sounds like
like is a big load on the batteries, it hits
faster than the AGS can start, and the caps in
the classic are dumping into the super low
battery voltage. If this is happening in the
AM, guessing with enough light to get the CC
alive </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">If there is a trimetric,
you can measure the lowest voltage which
should give you some good info. Super low
volts might mean a bad battery or too big a
load or both. </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">But I don't believe it's
the other way around that the classic is
causing any issues with the AGS/inverter</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">You could always try
another CC and see what happens</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Jay</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Peltz power</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"
style="margin-bottom:12.0pt"> </p>
<div>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal"> </p>
</div>
</div>
</div>
<div>
<p class="MsoNormal"
style="margin-bottom:12.0pt"><br>
On Oct 26, 2015, at 6:30 PM, Daniel Tittmann
<<a moz-do-not-send="true"
href="mailto:daniel@greenwired.com"
target="_blank">daniel@greenwired.com</a>>
wrote:</p>
</div>
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style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<div>
<p class="MsoNormal">Hive mind-</p>
<div>
<p class="MsoNormal">hoping you all can
help me solve this mystery issue.</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">System:</p>
</div>
<div>
<p class="MsoNormal">Magnum double panel
with Parallel stacked 2x4448 pae
inverters.</p>
</div>
<div>
<p class="MsoNormal">Classic 150 charge
controller wired with an NMEPV 50 (din
rail) and NMEPV100 </p>
</div>
<div>
<p class="MsoNormal">18 - 245 watt solar
modules (6x3). (not over powered)</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Issue:</p>
</div>
<div>
<p class="MsoNormal">every morning the 100
amp din rail breaker is tripping. from
what I can gather simultaneously the
magnum RTR shows the AGS go into error.
Re set the breaker and the solar works
fine for the rest of the day. </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Not 100% sure the AGS
has worked (under normal operation) at
all other than at commissioning and
recent testing. </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Of course on site i
cant get it to fail.</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Tested the AGS by
setting start voltage to 48.2 vdc and
put the system under load....... voltage
drops and generator turned on with no
pv-> Batt breaker issue. </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">last visit, chasing
one theory, I re routed the battery +
from the mnpv100 directly to the battery
+ terminal as opposed to the battery +
bus bar in the inverter panel still
didn't solve the problem.</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">I cant figure out if
it the classic causing the issue or if
it is the inverters and the AGS.</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Any input would be
appreciated.</p>
</div>
<div>
<p class="MsoNormal">Thanks</p>
</div>
<div>
<p class="MsoNormal">Daniel</p>
</div>
<div>
<p class="MsoNormal"><br clear="all">
</p>
<div>
<div>
<div>
<p class="MsoNormal">Daniel
Tittmann </p>
<div>
<p class="MsoNormal">CTO</p>
</div>
<div>
<p class="MsoNormal">Greenwired</p>
</div>
<div>
<p class="MsoNormal"><a
moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="http://www.greenwired.com"><a class="moz-txt-link-abbreviated" href="http://www.greenwired.com">www.greenwired.com</a></a></p>
</div>
<div>
<p class="MsoNormal"><a
moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:daniel@greenwired.com"><a class="moz-txt-link-abbreviated" href="mailto:daniel@greenwired.com">daniel@greenwired.com</a></a></p>
</div>
<div>
<p class="MsoNormal"><a
moz-do-not-send="true"
href="tel:707-923-2001"
target="_blank">707-923-2001</a>
(office)</p>
</div>
<div>
<p class="MsoNormal"><a
moz-do-not-send="true"
href="tel:707-206-5088"
target="_blank">707-206-5088</a>
(Cell)</p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
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<p class="MsoNormal"
style="margin-bottom:12.0pt">_______________________________________________<br>
List sponsored by Redwood Alliance<br>
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