Hi Jay, here are my guesses: 1) Customer is using all the power (3.5 is not a large array) 2) Per William Miller, the batteries are shot. 3) combination of 1 &2 4) Bulk voltage is too high, daily trying to go to bulk voltage drives the batteries to the grave. Float voltage is too high, acting as a low charge, holding off sell. The return amps never drop to an acceptable level. 5) What is the sell voltage? Is it too high? I feel insecure in telling you my settings as I look to you as one of the top people in the field.
On Mon, Jul 19, 2021 at 6:25 PM Jay <jay.pe...@gmail.com> wrote: > I’ve had someone from application engineering at Outback check the > settings. > > All appear normal and correct. > > I’m going to be checking the deep setting on grid sell which is most > likely the culprit. > > Thanks for all the advice and I’ll let you all know what find. > > Jay > > On Jul 19, 2021, at 4:11 PM, Jerry Shafer <jerrysgarag...@gmail.com> > wrote: > > > Jay > In Optics RE > Mate 3S verify that the firmware is 1.4.6 > under global charge are all switches "disabled" > in the GS AC Input "Grid", > Charger "Off", > "Grid Tie" set > Offset enable "Yes" > sell is up to you and battery manufacture > Jerry > > On Sun, Jul 18, 2021 at 1:44 PM jay <jay.pe...@gmail.com> wrote: > >> HI All, >> >> I”m trying to diagnose the following system I didn’t install. >> >> 4 year old system grid tie battery back up. >> >> Radian 4048 >> flexmax 80 >> 3500 watts PV >> fndc >> it is on opticsRE >> >> The symptoms are that its not selling much at all. Mostly when it is >> about 1kw max PV production and .8kw selling. I have disconnected the FNDC >> and after that it did seem to work better. >> >> Usually it will sell a bit, then buy a bit then sell and so on. Grid >> voltage is very constant at around 246vac. >> >> I’ve been through the settings a few times with tech support, made >> adjustments and for a while it was selling pretty normally, but again today >> 0 production, CC is at float. >> >> I have not been to the site, I was just trying to do this all by optics. >> But I’m going to have to go. I think there are 3 possible issues. >> >> 1. the customer has always thought the production is low. And from what >> I’ve seen that is true. This is in a very sunny place, no shade so with >> 3.5kw, 1kw is very low which I think they may have a few strings of the >> array are not connected. However why that bothers me is that the VOC/VMP >> voltages are too close in looking at the CC. Which leads me to think its >> been told to back off to the 1.0kw, by some setting, see #2. And its always >> around .8 selling and around 1kw output from the array. >> >> 2. There is a programing issue. >> >> 3. There is a hardware issue. >> >> >> If someone wants to look at the site, I have the info and they can log >> in. >> Or if they want to provide settings for me to triple check, that would be >> great >> and >> if they have any ideas as to why its acting like it is, very much >> appreciated >> So far even though tech support has viewed in on Optics and have had some >> recommendations as to settings, its not fixed the issue. >> >> thanks in advance, >> >> jay >> >> peltz power >> >> >> >> >> >> >> >> _______________________________________________ >> 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 >> >> _______________________________________________ > 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 > > _______________________________________________ > 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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