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<DIV><FONT size=2>August</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2> We had something similar happen a few years ago on an
AC coupled application using a 5048 Sunny Island ( with transformer ) and a
Sunny Boy 7000. In a grid down scenario the Sunny boy dropped off
line. After a few calls with SMA sharing the error codes it
turned out the Sunny Island was not delivering 60 hertz, not even 59, so we had
to reprogram the Sunny Boy to recognize and run on 57 hertz.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2> SMA was gracious enough to share the "magic code " and
walk me through the programming. Once the Sunny Boy was reset to operate on the
lower hertz range everything worked great. You may have a similar situation, not
sure if the ABB folks will help with the hertz adjustment but you should give it
a try before springing for a sunny boy.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Peter Giroux</FONT></DIV>
<DIV><FONT size=2>ASAE</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=august@luminalt.com href="mailto:august@luminalt.com">August
Goers</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=re-wrenches@lists.re-wrenches.org
href="mailto:re-wrenches@lists.re-wrenches.org">RE-wrenches</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, September 18, 2017 5:48
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [RE-wrenches] Sunny Island grid
tie battery back and backup stability issues with ABB</DIV>
<DIV><BR></DIV>
<DIV dir=ltr>Hi Wrenches -
<DIV><BR></DIV>
<DIV>We have an ~3 year old grid tied battery backup system with a SMA Sunny
Island 4548 and Power-One (now ABB) PVI-5000 inverter. There is also an
Outback PSX-240 to boost the Sunny Island voltage to 240 volts. </DIV>
<DIV><BR></DIV>
<DIV>We recently returned to the site for an annual service call and tested
the system by simulating a power outage. The Sunny Island kicked in just fine
and provided stable voltage for the backup loads. However, the ABB tries to
connect and immediately we see that voltage and frequency of the Sunny Island
grid start to rapidly fluctuate. I have a feeling that my Fluke meter is not
capturing the fluctuations properly, but I was seeing voltage fluctuate in the
238 to 242 volt range and frequency rapidly fluctuate between 59 and 61
Hz. </DIV>
<DIV><BR></DIV>
<DIV>The ABB connects for a minute or two and then gives us a grid out of
range error. This occurs when we have lots of irradiance and also under
relatively low light conditions. I've already been on the phone with SMA tech
support several times and verified that all the Sunny Island settings are
good.</DIV>
<DIV><BR></DIV>
<DIV>Has anyone else seen this type of instability issue and did you find a
fix? We might need to install a Sunny Boy. <BR>
<DIV class=gmail_extra><BR></DIV>
<DIV class=gmail_extra><BR></DIV>
<DIV class=gmail_extra>Thanks,</DIV>
<DIV class=gmail_extra><BR></DIV>
<DIV class=gmail_extra>August<BR clear=all>
<DIV>
<DIV class=gmail_signature data-smartmail="gmail_signature">
<DIV dir=ltr>
<DIV dir=ltr>
<P><B><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 9pt">August
Goers</SPAN></B></P>
<P><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 8pt">Luminalt</SPAN></P>
<P><BR></P>
<P> </P></DIV></DIV></DIV></DIV><BR></DIV></DIV></DIV>
<P>
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