William, good morning. I live off grid w/ these things please feel free to contact me off list. Without knowing your familiarity w/ the SMASI, I may be repeating things you already know. Anytime the SOC is above 70% your frequency is shifted to reduce array input, (German engineers) so this is probably the most frustrating issues w/ the SIs. Beautiful sunny day at 73% little recharge, next day cloudy for a week starting w/ a BB that isn’t fully charged, customers & installers don’t like this too much.
First; Anytime there is a generator fault one needs to clear that fault. This is found menu 540/2“Gen Ackn”. Also check that the gen in 540 01 is set to “auto”, if not then check menu 235/01 “Generator Start" default is “on". Menu # 235/02 “ Gn autoStr”, I will always increase the # of start attempts usually to 5or 6, default is 3. If the generator is running, charging batteries while there is good production from the array you will get “reverse current” if this happens, it will disable charging from genset which needs to be reset also in Menu 540/02. One can also In Menu "Generator control" 234 /13 GnRVPwr, Try setting this up to 150W Bottom line, off grid living that 500 menu is my go to for both my clients that have these things & myself. Clearing gen faults, Menu 520/01 to start battery EQing. Fla batteries, one can set voltage set points higher than the Bulk set point, but this leads to additional watering. For AGMs I will set this to my absorb voltage setpoints. If one uses this menu while its sunny this will prevent the Frequency shift and you will usually get a decent charge from the array. I usually do this once a week or so this time of year. This system has worked well in the past, sounds like the generator starter battery was the fault issue that cascaded into additional issues. I use a Victron BVM712 that enables me to watch the “House BB voltage” AND monitor the "generator starter BV". You can also remotely actuate the relay for alarms etc. Tump > On Dec 19, 2020, at 2:19 AM, William Miller <will...@millersolar.com> wrote: > > Wrenches: > > I found some time to review the .evt and .log files from the primary Sunny > Island inverter. > > Prior to 12/8/20 the system was running normally with a generator run > averaging 6 hours about every other day. > > On 12/8 at 06:00 the system tried to start the generator. There was no > indication the generator delivered voltage to the system. The system tried > to start the generator 168 times between 12/18 at 06:00 and 12/13 at 15:00. > 168 times the system closed relay 1 and then opened it about 2 minutes later. > Maybe the generator ran, maybe it didn’t, but no voltage was delivered. On > 12/15 the client started the generator and it produced voltage into the > inverter system. On 12/18 I started the generator and it produced voltage. > > Why this generator start cycle kept recurring is a mystery to me. There may > be a setting within the bowels of the menu system that I have overlooked that > limits the start attempts and I will be investigating that. To me, > navigating the Sunny Island menu system is like trying to remember the DOS > command-line interface. I need something much more ergonomic. > > Thanks for all of your priceless knowledge. I feel like we are a little nerd > family. > > 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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