This is totally normal w/ the displays. There IS an emergency charge setting…. You put AC into the AC out essentially AC coupling w/ the genset. Page 222 section 20.10. This works only w/ FLA batteries. What was the issue w/ the generator battery? I install a small AC charger for the generator battery. There are “ auto start functions” 234.07 Auto gen start is also 235.01 Is there internet/ cell at the site? > On Dec 17, 2020, at 1:51 PM, William Miller <will...@millersolar.com> wrote: > > Friends: > > I have a client living off-grid with a Sunny Island system AC coupled to > Sunny Boy inverters. They returned from being away to find the system > entirely shutdown due to cloudy weather, a dead generator cranking battery > and a water leak which ran two booster pumps continuously over a period of > time. The displays on the Sunny Islands were blank and therefore the > inverters would not start. > > We put a new cranking battery into the generator and got it started, but with > no life in the Sunny Islands, neither the generator nor the Sunny Boys had > any possibility of reviving the discharged 6,000 amp-hour lead acid battery > array. Fortunately after disconnecting the batteries for ten minutes, the > voltage rebounded just enough to start the Sunny Islands which allowed the > generator to connect and we were back in operation. > > I am not sure why the displays went dead on the Sunny Islands. I am on my > way back out to download and examine the SD card logs. I have developed an > Excel tool to help me tabulate the data. Maybe there is some clue in those > files. > > In the meantime I have these questions that those of you with more Sunny > Island experience might be able to answer: > > 1. Is it normal for the display screens on the Sunny Islands to go blank > after shutting off due to low battery voltage? > > 2. Is there an up-to-date option for remote monitoring that will send an > email if certain error conditions occur? > > 3. What would you do with a 6k AH battery bank with a voltage too low to > start a battery inverter or solar charge controller? > > Thanks in advance. The wrenches hive-mind is a huge asset. > > William Miller > Miller Solar > 17395 Oak Road, Atascadero, CA 93422 > 805-438-5600 > www.millersolar.com <http://www.millersolar.com/> > CA Lic. 773985 > > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > <mailto:RE-wrenches@lists.re-wrenches.org> > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <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/re-wrenches@lists.re-wrenches.org/ > <https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/> > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org> > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > <http://www.re-wrenches.org/etiquette.htm> > > Check out or update participant bios: > http://www.members.re-wrenches.org <http://www.members.re-wrenches.org/> > t...@swnl.net > <blocked::mailto:t...@swnl.net%22%20%5Co%20%22blocked::mailto:t...@swnl.net> > 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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