I would check at what voltage the Generator AC input set points are at. If the generator AC disconnect voltage is set to low say 100V then the inverters stay connected to that voltage then unlatch. Perhaps you are seeing a voltage spike at that time. Meters will show spikes not averages. > On Nov 2, 2021, at 4:46 PM, Jason Szumlanski > <[email protected]> wrote: > > 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. > > 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. > > 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. > > I misspoke in my initial email. He has AGS voltage start and SOC start set > up. > > > > > On Tue, Nov 2, 2021 at 3:09 PM Jason Szumlanski > <[email protected] > <mailto:[email protected]>> wrote: > 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. > > He said there is an error code but he never wrote it down. > > Any ideas given the sequence of events? > > 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. > > Jason Szumlanski > Florida Solar Design Group > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org >
> Tump > <blocked::mailto:[email protected]%22%20%5Co%20%22blocked::mailto:[email protected]>[email protected] > www.SWNL.net > <blocked::http://www.swnl.net/%22%20%5Co%20%22blocked::http://www.swnl.net/> > Solarwinds Northernlights > Serving Mid Coast Maine & Northern California > 207-832-7574 Cl. 610-517-8401 > > Blair "TUMP" May > ******** MAINE'S CHARTER ******** > NABCEP "Certified PV Installer" > > ******** MAINE'S CHARTER ******** > Trace Xantrex "Certified" Dealer / Installer" >
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