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<p class="MsoNormal">Hello Jason <o:p></o:p></p>
<p class="MsoNormal">I sent on off line email to you I would like to assist if you do not mind.<o:p></o:p></p>
<p class="MsoNormal">Lones<o:p></o:p></p>
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<p class="MsoNormal"><b>From:</b> RE-wrenches <re-wrenches-bounces@lists.re-wrenches.org>
<b>On Behalf Of </b>Jason Szumlanski<br>
<b>Sent:</b> Tuesday, November 2, 2021 1:47 PM<br>
<b>To:</b> RE-wrenches <re-wrenches@lists.re-wrenches.org><br>
<b>Subject:</b> Re: [RE-wrenches] Radian 8048's shutting down on generator stop<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Whoa! I just got access to his OpticsRE. It says battery voltage reached as high as 66V!!! (48V Nominal). I don't know if that's true yet or a acrtually voltage metering issue. But it appears
that when the generator stops the invert mode kicks in and immediately shuts down due to high battery voltage. I guess the inverters were coming back alive when the voltage settled to the normal range. But the homeowner reports that when he manually restarts
the system the battery is around 54V. I'm not sure how long after the shutdown this occurs.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">So at this point I told him he needs to be very careful and make sure he's not cooking the batteries by testing with a volt meter during charging to see what's really going on.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">I'm concerned because the FNDC, both GS8048s and both FM100s all report abnormally high battery voltage. That suggest that the voltage is actually that high. But the charger setpoints are clearly
set to defaults for absorb and float. I don't know why the voltage would blow past the setpoints. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">I misspoke in my initial email. He has AGS voltage start and SOC start set up. <o:p></o:p></span></p>
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<p class="MsoNormal">On Tue, Nov 2, 2021 at 3:09 PM Jason Szumlanski <<a href="mailto:jason@floridasolardesigngroup.com">jason@floridasolardesigngroup.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">I have a client (DIY) who has dual 8048's and he is starting the generator using both high load and low voltage settings with the AGS. It worked flawlessly for 9 months. Then for a couple of months when the generator shut down the lights
would flicker. Eventually it started shutting down his loads completely for a couple of minutes and it would start back up automatically. Now when the generator shuts down the inverters shut down and need to be restarted manually.
<o:p></o:p></p>
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<p class="MsoNormal">He said there is an error code but he never wrote it down.<o:p></o:p></p>
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<p class="MsoNormal">Any ideas given the sequence of events?<o:p></o:p></p>
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<p class="MsoNormal">Lead acid batteries. 20kW generator. Despite it being DIY from an online wholesaler, he did hire a licensed electrician and that electrician consulted with me a bit prior to installation, so it's a pretty good job. I'm thinking it's an
internal Radian setting or fault causing this. <o:p></o:p></p>
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<p class="MsoNormal">Jason Szumlanski<o:p></o:p></p>
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<p class="MsoNormal">Florida Solar Design Group<o:p></o:p></p>
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