Forgive my ignorance but why won't the vfx lbco work for lithium?
On Thu, Jan 2, 2025, 8:19 AM Bill Battagin via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > I am trying to use the "low battery disconnect" in aux mode in a newly > installed OB FM80 CC for Li battery low voltage protection. I can't use > the 19 year old OB VFX inverters for obvious reasons. The plan is to run > the 12 volt output from the aux output to a NC relay to open it at 50 > VDC of the bank of SimpliPhi 3.8M batteries. 50 VDC is SimpliPhi's > recommendation for LVD. The "output" of the relay would be connected to > the VFX's ON-OFF landings of that little green terminal block in the AC > side of the inverter and just act as a simple switch for the inverter to > turn it off to save the batteries. > > I'm using one of my newer FM80's as a test run and have > programmed the voltages in Low Battery Disconnect mode and then put it > in auto mode. However, as the CC goes below the voltage set point, the > AUX output does not turn on (time set for 5 seconds), as evidence in the > CC's home screen and by checking for 12V at the AUX terminal block. > > Any ideas of what I'm missing here to make this work? I > know the other solution, thousands of $$ for new inverters which would > be great but these folks have already invested quite a chuck on array > replacement and charge controllers. > > Thanks for any experience with this. > > Bill > > Feather River Solar Electric > Bill Battagin, owner > 4291 Nelson St. (Shipping) > 5575 Genesee Rd > <https://www.google.com/maps/search/5575+Genesee+Rd?entry=gmail&source=g>. > (USPS, UPS) > Taylorsville, CA 95983 > 530-284-7849, 258-1641(cell) > CA. C10 Lic # 874049 > Solar Powered since 1982 > Home of the Sunny Side Up > > > -- > This email has been checked for viruses by Avast antivirus software. > www.avast.com > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > 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/re-wrenches@lists.re-wrenches.org/ > 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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