<p dir="ltr">Wrenches,<br>
Regarding inaccurate voltage, now that you have cycled the connections at the ribbons, you may want to very closely inspect the boards as cracked solder joints can be temporarily corrected by just touching the ribbons, your phone camera can get real close and zoom in to look at each solder joint and verify a good connection,<br>
Fun times to all</p>
<br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Wed, Apr 9, 2025, 10:04 AM Drake Chamberlin via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="font-size:10pt;font-family:Verdana,Geneva,sans-serif">
<p><span style="font-size:12pt">For a followup, it appears that the problem was in a ribbon cable connection. After checking the power wiring and starting the inverter again, the problem still remained. </span></p>
<p><span style="font-size:12pt">Then, I disconnected and reconnected the ribbon cables at both ends. On restart, the voltage was with 6 V of the multi meter reading. I adjusted this out with the offset in the calibration menu. The voltage has read steady for a day now.</span></p>
<p><span style="font-size:12pt">Thank you!</span></p>
<p><span style="font-size:12pt">Drake </span></p>
<p>Drake Chamberlin<br><em>Athens Electric LLC<br>OH Electrical Contractor License 44810<br>NABCEP Certified Solar PV Installation Professional<br>740-856-9648<br><br></em></p>
<div id="m_3843317726132138649signature">---<br>
<div style="margin:0;padding:0;font-family:monospace"> </div>
</div>
<p><br></p>
<p id="m_3843317726132138649reply-intro">On 2025-04-06 09:25, Mac Lewis via RE-wrenches wrote:</p>
<blockquote type="cite" style="padding:0 0.4em;border-left:#1010ff 2px solid;margin:0">
<div id="m_3843317726132138649replybody1">
<div dir="ltr">Also look for loose connections and corrosion.  If it tries to push current and the voltage rapidly rises, it can indicate resistance somewhere.  
<div> </div>
<div>Good luck!</div>
</div>
<br>
<div>
<div dir="ltr">On Sun, Apr 6, 2025 at 7:20 AM Maverick Brown via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer noreferrer" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:</div>
<blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid #cccccc;padding-left:1ex">
<div dir="auto">Maybe the Calibrate setting got changed somehow. 
<div> </div>
<div>OpticsRE: Device Map, Inverter, Calibrate. </div>
<div> </div>
<div>From the Mate: Lock, 141, Settings, Inverter, Calibrate. </div>
<div> </div>
<div><span style="color:#000000">Make sure the settings are Zero offset or at least appropriate. </span></div>
<div> </div>
<div>
<div dir="ltr">Thank you,
<div> </div>
<div>Maverick</div>
<div>
<div id="m_3843317726132138649v1m_1990907044263795720AppleMailSignature" style="color:#000000;font-family:Helvetica;font-size:12px">
<div> </div>
<div>Maverick Brown<br>Off-Grid Solar Commander since 2006<br>Maverick Solar Enterprises, Inc.<br> • Solar Commander Remote Power<br> • SunFlow Systems Cathodic Protection <br><a href="mailto:maverick@mavericksolar.com" rel="noreferrer noreferrer" target="_blank">maverick@mavericksolar.com</a><br>512-460-9825</div>
<div> </div>
</div>
</div>
<div> </div>
</div>
<div dir="ltr"><br>
<blockquote type="cite" style="padding:0 0.4em;border-left:#1010ff 2px solid;margin:0">On Apr 5, 2025, at 1:22 PM, Drake Chamberlin via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer noreferrer" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br><br></blockquote>
</div>
<blockquote type="cite" style="padding:0 0.4em;border-left:#1010ff 2px solid;margin:0">
<div dir="ltr">
<p><span style="font-size:11pt">A Radian 4048 disconnected from the grid with a high grid voltage error showing on the Mate 3. The Mate 3 was displaying a voltage of 279 - 280 V. The Mate 3 was replaced with another Mate 3, and the high voltage reading remained. </span></p>
<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:11pt">When the voltage was checked with two separate multi meters, the readings came out to 249 - 250 V. I believe that the 249 - 250 volt reading is correct. <br></span></div>
<div style="margin:0px;padding:0px;font-family:monospace"> </div>
<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:11pt">The incorrect, high voltage reading seems to be coming for the inverter, not the Mate 3, since two Mates were used. </span></div>
<div style="margin:0px;padding:0px;font-family:monospace"> </div>
<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:11pt">Has anyone experienced this?  </span></div>
<div style="margin:0px;padding:0px;font-family:monospace"> </div>
<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:11pt">What could be the cause and solution to the problem?</span></div>
<div style="margin:0px;padding:0px;font-family:monospace"> </div>
<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:11pt">Thank you,</span></div>
<div style="margin:0px;padding:0px;font-family:monospace"> </div>
<div style="margin:0px;padding:0px;font-family:monospace"><span style="font-size:11pt">Drake </span></div>
<div style="margin:0px;padding:0px;font-family:monospace"> </div>
<div style="margin:0px;padding:0px;font-family:monospace">
<p>Drake Chamberlin<br><em>Athens Electric LLC<br>OH Electrical Contractor License 44810<br>NABCEP Certified Solar PV Installation Professional<br>740-856-9648<br><br></em></p>
</div>
<div style="margin:0px;padding:0px;font-family:monospace"><br><br>
<div id="m_3843317726132138649v1m_1990907044263795720signature">-- <br>
<div style="margin:0px;padding:0px;font-family:monospace"> </div>
</div>
</div>
<span>_______________________________________________</span><br><span>List sponsored by Redwood Alliance</span><br><span></span><br><span>Pay optional member dues here: <a href="http://re-wrenches.org" rel="noopener noreferrer noreferrer" target="_blank">http://re-wrenches.org</a></span><br><span></span><br><span>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" rel="noreferrer noreferrer" target="_blank">RE-wrenches@lists.re-wrenches.org</a></span><br><span></span><br><span>Change listserver email address & settings:</span><br><span><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" rel="noopener noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a></span><br><span></span><br><span>There are two list archives for searching. When one doesn't work, try the other:</span><br><span><a href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" rel="noopener noreferrer noreferrer" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a></span><br><span><a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" rel="noopener noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a></span><br><span></span><br><span>List rules & etiquette:</span><br><span><a href="http://www.re-wrenches.org/etiquette.htm" rel="noopener noreferrer noreferrer" target="_blank">http://www.re-wrenches.org/etiquette.htm</a></span><br><span></span><br><span>Check out or update participant bios:</span><br><span><a href="http://www.members.re-wrenches.org" rel="noopener noreferrer noreferrer" target="_blank">http://www.members.re-wrenches.org</a></span><br><span></span></div>
</blockquote>
</div>
</div>
_______________________________________________<br>List sponsored by Redwood Alliance<br><br>Pay optional member dues here: <a href="http://re-wrenches.org" rel="noopener noreferrer noreferrer" target="_blank">http://re-wrenches.org</a><br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" rel="noreferrer noreferrer" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br><br>Change listserver email address & settings:<br><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" rel="noopener noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>There are two list archives for searching. When one doesn't work, try the other:<br><a href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" rel="noopener noreferrer noreferrer" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br><a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" rel="noopener noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br><br>List rules & etiquette:<br><a href="http://www.re-wrenches.org/etiquette.htm" rel="noopener noreferrer noreferrer" target="_blank">http://www.re-wrenches.org/etiquette.htm</a><br><br>Check out or update participant bios:<br><a href="http://www.members.re-wrenches.org" rel="noopener noreferrer noreferrer" target="_blank">http://www.members.re-wrenches.org</a><br><br></blockquote>
</div>
<div> </div>
<div> </div>
<span>-- </span><br>
<div dir="ltr">
<div> </div>
<div><span style="color:#305a78;font-family:'times new roman',serif"> </span></div>
<div> </div>
Mac Lewis<br><br>
<p align="left"><span style="color:#000000;font-family:Verdana,Arial,Helvetica,sans-serif"><span style="font-size:small"><span style="font-family:arial;font-weight:normal;color:#305a78"><span style="font-family:'times new roman',serif">"Yo solo sé que no sé nada." </span><span style="font-weight:bold;color:#686868"><span style="font-family:'times new roman',serif">-Sócrates</span></span></span></span></span></p>
</div>
</div>
<br>
<div style="margin:0;padding:0;font-family:monospace">_______________________________________________<br>List sponsored by Redwood Alliance<br><br>Pay optional member dues here: <a href="http://re-wrenches.org" rel="noopener noreferrer noreferrer" target="_blank">http://re-wrenches.org</a><br><br>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank" rel="noreferrer">RE-wrenches@lists.re-wrenches.org</a><br><br>Change listserver email address & settings:<br><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" rel="noopener noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br><br>There are two list archives for searching. When one doesn't work, try the other:<br><a href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" rel="noopener noreferrer noreferrer" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br><a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" rel="noopener noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br><br>List rules & etiquette:<br><a href="http://www.re-wrenches.org/etiquette.htm" rel="noopener noreferrer noreferrer" target="_blank">http://www.re-wrenches.org/etiquette.htm</a><br><br>Check out or update participant bios:<br><a href="http://www.members.re-wrenches.org" rel="noopener noreferrer noreferrer" target="_blank">http://www.members.re-wrenches.org</a><br><br></div>
</blockquote>
</div>
_______________________________________________<br>
List sponsored by Redwood Alliance<br>
<br>
Pay optional member dues here: <a href="http://re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://re-wrenches.org</a><br>
<br>
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank" rel="noreferrer">RE-wrenches@lists.re-wrenches.org</a><br>
<br>
Change listserver email address & settings:<br>
<a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br>
<br>
There are two list archives for searching. When one doesn't work, try the other:<br>
<a href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" rel="noreferrer noreferrer" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br>
<a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br>
<br>
List rules & etiquette:<br>
<a href="http://www.re-wrenches.org/etiquette.htm" rel="noreferrer noreferrer" target="_blank">http://www.re-wrenches.org/etiquette.htm</a><br>
<br>
Check out or update participant bios:<br>
<a href="http://www.members.re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://www.members.re-wrenches.org</a><br>
<br>
</blockquote></div>