Jerry, Who is the maker of the Blue Planet/Outback SOC box interface you mention?
On Sat, Sep 16, 2023 at 9:30 AM Jerry Shafer via RE-wrenches < [email protected]> wrote: > Mac, wrenches > SMA and fortress can only open loop and with a fixed temp sender its fine. > Now on the blue planet and open loop with outback, you need a SOC box that > they can make for you, it will interface with the blue planet and command > the genny. > Fun times > > On Sat, Sep 16, 2023, 6:04 AM Mac Lewis <[email protected]> wrote: > >> Hi William, >> >> Are you doing open loop or closed loop communication? I'm not sure if >> Fortress can do a closed loop with SMA or not. >> >> We struggled to get the open loop to work well with some Blue Ion >> batteries, not from a charging sense but from a sense of getting the auto >> gen start to trigger correctly. Basically, the SOC algorithm was always >> way off. For a while we were using an external voltage trigger and we >> could get the generator to start OK before BMS shutdown. We have since >> added a Namaka box and are using the "Ext BMS" setting for battery type in >> the Sunny Island and it has been working very well. >> >> I think the difficulty arises because the Sunny Island is so >> State-of-Charge centric and you can't manipulate the SOC algorithm without >> that Ext-BMS setting (and solid communication). One weakness of the >> ext BMS setting is that it won't fall back on Voltage settings if battery >> communication goes down, but this is a weakness throughout closed loop >> communication for many manufacturers. >> >> Let us know if there is a Fortress to SMA communication solution. >> >> >> >> >> >> On Fri, Sep 15, 2023 at 11:11 PM Jerry Shafer via RE-wrenches < >> [email protected]> wrote: >> >>> William, Wrenches >>> Yes I do and it does require some basic electronics to make it work >>> correctly, you will need to remove the ttemp sender and make a >>> resistor pack to simulate the 77 degree reading otherwise it will not >>> charge properly, for the first one I used a breadboard to set the temp for >>> what I wanted to see then build a more solid state shrink wrap resistor. >>> Doing this will prevent undercharge by the SMA and your customer will be >>> happy to see the full state of charge at the batteries. >>> OldSchool fun times >>> >>> >>> >>> On Thu, Sep 14, 2023 at 2:12 PM William Miller via RE-wrenches < >>> [email protected]> wrote: >>> >>>> Friends: >>>> >>>> >>>> >>>> I am commissioning an E-vault battery array to an existing SMA Sunny >>>> Island System. Does anyone have any experience with this they could share? >>>> >>>> >>>> >>>> Thanks. >>>> >>>> >>>> >>>> William >>>> >>>> >>>> >>>> Miller Solar >>>> >>>> 17395 Oak Road, Atascadero, CA 93422 >>>> >>>> 805-438-5600 >>>> >>>> www.millersolar.com >>>> >>>> CA Lic. 773985 >>>> >>>> >>>> >>>> >>>> _______________________________________________ >>>> 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 >>> >>> >> >> -- >> >> >> >> Mac Lewis >> >> *"Yo solo sé que no sé nada." -Sócrates* >> > _______________________________________________ > 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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