<div dir="ltr">Brian, <div>I had tried lowering the EQ voltage by 0.4V. The batteries still get up to the EQ voltage, but then fluctuate right at or 0.1V below. </div><div><br></div><div>Dave, </div><div>The EQ countdown timer does not count down when the battery voltage is below the EQ setpoint (even if by 0.1V). And since the timer never gets to 0, the system just stays in EQ.</div><div><br></div><div>Also, we have found that the issue is somewhat intermittent. At one point Outback had me reset the CC and FNDC back to factory settings and reprogram them. It seemed that it helped, but then a month or two later it showed the same issue. So this does not happen with every EQ cycle, it just happens for most of them. </div><div><br></div><div>I also received another suggestion that the battery bank has a couple bad cells which will lead to higher temps and so with the temperature compensation the bank is just not getting to a high enough voltage. </div><div><br></div><div>Cheers, </div><div>Dave</div><div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><br></div><div><b><font face="tahoma, sans-serif">Dave Tedeyan, PE</font></b></div><div><font face="tahoma, sans-serif">Senior Engineer | Taitem Engineering, PC</font></div><div><font face="tahoma, sans-serif"><img src="https://www.taitem.com/signatures/logo.png"><br></font></div><div><font face="tahoma, sans-serif">110 South Albany Street</font><span style="font-family:tahoma,sans-serif"> | Ithaca, NY 14850</span></div><div><font face="tahoma, sans-serif">o. <u>607.277.1118 x121</u> f. 607.277.2119</font></div><div><font face="tahoma, sans-serif"><a href="http://www.taitem.com" target="_blank">www.taitem.com</a></font></div><div><br></div><div><span style="font-family:tahoma,sans-serif;font-size:10pt;line-height:14.2667px">Solar </span><span style="font-family:tahoma,sans-serif;font-size:10pt;line-height:14.2667px">\u2022</span><span style="font-family:tahoma,sans-serif;font-size:12.5pt;line-height:17.8333px"> </span><span style="font-family:tahoma,sans-serif;font-size:10pt;line-height:14.2667px">Sustainability </span><span style="font-family:tahoma,sans-serif;font-size:10pt;line-height:14.2667px">\u2022 </span><span style="font-family:tahoma,sans-serif;font-size:10pt;line-height:14.2667px">Energy </span><span style="font-family:tahoma,sans-serif;font-size:10pt;line-height:14.2667px">\u2022 </span><span style="font-family:tahoma,sans-serif;font-size:10pt;line-height:14.2667px">Design</span><br></div><div><span style="font-family:tahoma,sans-serif;font-size:10pt;line-height:14.2667px"><span style="font-family:Tahoma,sans-serif;font-size:13.3333px">Certified B-Corporation since 2013</span><span style="font-size:13.3333px"><br></span></span></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 28, 2020 at 11:08 AM Dave Angelini Offgrid Solar <<a href="mailto:offgridsolar@sti.net">offgridsolar@sti.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><p>Does not sound right to me. Usually both Outback and Schneider protect against uncontrolled EQ time and end EQ.</p>
<p>I think I would remove the network after the battery is full and test one controller at a time. Might have been damaged by lightning or gen glitching. Since you say it does this from the inverter charger on genset (only no fm80's) is even weirder. Eliminate the network.</p>
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<pre><strong><span style="font-size:small">Dave Angelini Offgrid Solar
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<p>On Tue, 28 Apr 2020 07:00:21 -0700, Brian Mehalic <<a href="mailto:brian@solarenergy.org" target="_blank">brian@solarenergy.org</a>> wrote:</p>
<blockquote type="cite" style="padding-left:5px;border-left:2px solid rgb(16,16,255);margin-left:5px;width:100%">Sorry you had already answered the first two questions :) What about the others?<br><br>
<div dir="ltr">Brian</div>
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<blockquote type="cite" style="padding-left:5px;border-left:2px solid rgb(16,16,255);margin-left:5px;width:100%">On Apr 28, 2020, at 6:50 AM, Dave Tedeyan <<a href="mailto:dtedeyan@taitem.com" target="_blank">dtedeyan@taitem.com</a>> wrote:<br><br></blockquote>
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<div dir="ltr">Hi All,
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<div>I've got an outback system (Radian 8048A, 2 FM80, 16 Trojan L16RE-B) where when the customer equalizes, the batteries hover right around the EQ voltage, but will often dip to 0.1v less. Because of this, the EQ timer does not count down properly, and so left to its own devices the system would equalize for way longer than it should, potentially forever. This will happen when doing an EQ from the solar on a bright sunny day, or the generator, or both. The customer can manually keep track of the time and manually stop the EQ after 3 hours, but that is not ideal. Has anyone dealt with this before and have any suggestions on how they fixed it? </div>
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<div>This system is 3-4 years old, and the issue only started in the past year or so.</div>
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<div>Cheers, </div>
<div>Dave</div>
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<div><strong><span style="font-family:tahoma,sans-serif">Dave Tedeyan, PE</span></strong></div>
<div><span style="font-family:tahoma,sans-serif">Senior Engineer | Taitem Engineering, PC</span></div>
<div><span style="font-family:tahoma,sans-serif"><img src="cid:171c1579b38527484c21" alt=""><br></span></div>
<div><span style="font-family:tahoma,sans-serif">110 South Albany Street</span><span style="font-family:tahoma,sans-serif"> | Ithaca, NY 14850</span></div>
<div><span style="font-family:tahoma,sans-serif">o. <span style="text-decoration:underline">607.277.1118 x121</span> f. 607.277.2119</span></div>
<div><span style="font-family:tahoma,sans-serif"><a href="http://www.taitem.com" target="_blank">www.taitem.com</a></span></div>
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