You can find the temperature compensation voltage in the battery hot button. It might be a bad temp sensor
jay peltz power > On Nov 2, 2021, at 2:46 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 >
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