It's been a long time, but I'm quite certain it was landed on the Gen (AC2) input bus. It worked fine for many months, so I can't imagine this is the issue, but it's worth double checking.
This was a prewired dual Radian system from Wholesale Solar (or whatever they're called now). Jason On Tue, Nov 2, 2021, 6:41 PM Maverick Brown <[email protected]> wrote: > Sounds like the generator is connected to AC Out terminals (AC coupling). > This will ‘work’ to charge batteries. It will function but the Radian has > no way to regulate battery voltage. One would typically install an AUX > controlled AC relay on a grid tie inverter set up for AC coupling. In your > case, make sure the generator is landed on the generator terminals, AC2. > > Maverick Brown > Off-Grid Solar Commander since 2006 > *Maverick Solar Enterprises, Inc.* > * • Solar Commander Remote Power* > > * • SunFlow Systems Cathodic Protection *[email protected] > 512-460-9825 > > > On Nov 2, 2021, at 3:46 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]> 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 > > _______________________________________________ > 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 > >
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