[RE-wrenches] OB Radian / FM60 grid tie mystery

[Kirk Herander]

Looks like its only programmable directly on the Mate3s, not in optics RE.
Or maybe I haven;t found it yet.

On Sun, Aug 18, 2024 at 3:22 PM Jay <jay.peltz at gmail.com> wrote:

> There is a setting called
>
> FLEXnet dc advanced control.
>
> Default is Y
>
> I always set it to N
>
> Pg 128 in my manual.
>
> Jay
>
> On Aug 18, 2024, at 11:11 AM, Kirk Herander via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
> 
> Hello All,
> .
> I have a Radian 8048 system in service for over 10 years now. It sold back
> quite normally until the last several months -3.- FM60 CC's are set to grid
> tie mode and  viewable and programmed from the Mate3s / OpticsRE. This
> issue loosely correlates to replacing one of the CCs several months ago.
>
> Trouble is all -3- charge controllers are almost always in a float mode.
> The radian does sell, but at a small KW compared to what it used to before
> the frequent float mode started popping up. If I remember correctly,
> ideally the CCs should always be in bulk charge when sellback occurs.
>
> I have the CC and inverter charger float set to about 1 vdc higher then
> the inverter's sell volts, as I believe was recommended way back when. Hard
> to understand what changed, but something did. I've checked the relevant
> setpoints many times and can't find anything obviously amiss.
>
> Does a sell mode tech note paper exist still for the Radian system? Did it
> ever? Any ideas would be greatly appreciated.
>
>
>
>
> --
>
> *Kirk Herander / **kirkh at vermont.solar <kirkh at vermont.solar>*
>
> *Owner|Principal, VT Solar, LLC*
>
> *Celebrating our 33st Anniversary 1991-2024!!*
>
> dba Vermont Solar Engineering
>
> 802.559.1225
> _______________________________________________
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
> List Address: RE-wrenches at 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
>
>

-- 

*Kirk Herander / **kirkh at vermont.solar <kirkh at vermont.solar>*

*Owner|Principal, VT Solar, LLC*

*Celebrating our 33st Anniversary 1991-2024!!*

dba Vermont Solar Engineering

802.559.1225
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20240818/e1eb45b4/attachment.htm>