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

[Kirk Herander]

The 4x reduction (30 to 7.5A max sell change) makes perfect sense now.

On Mon, Sep 16, 2024 at 8:03 PM Maverick Brown <maverick at mavericksolar.com>
wrote:

> Here’s the app note about that when you upgrade the software above 1.6.63
> on the inverter.
>
> I use a label maker or a sharps to write the installer password on the
> back of the Mate3S.
>
> [image: preview.png]
>
> upgrading_1_6_63_app_note
> <https://www.outbackpower.com/downloads/documents/appnotes/upgrading_1_6_63_app_note.pdf>
> PDF Document · 200 KB
> <https://www.outbackpower.com/downloads/documents/appnotes/upgrading_1_6_63_app_note.pdf>
>
> <https://www.outbackpower.com/downloads/documents/appnotes/upgrading_1_6_63_app_note.pdf>
>
> Thank you,
>
> Maverick
>
> Maverick Brown
> Off-Grid Solar Commander since 2006
> Maverick Solar Enterprises, Inc.
>  • Solar Commander Remote Power
>  • SunFlow Systems Cathodic Protection
> maverick at mavericksolar.com
> 512-460-9825
>
>
>
> On Sep 16, 2024, at 6:31 PM, Kirk Herander via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
> 
> Solved the problem.
>
> Somehow the  "sell current limit" in the grid interface protection menu,
> a hidden menu only accessed by creating a new installer login code, was set
> to 7.5 a.
>
> I reset it to the max of 30a, and the system sells normally again.
>
> I read on an outback forum this parameter can change as a result of a
> GS8048 firmware upgrade. Go figure.
>
> On Sun, Aug 18, 2024 at 1:11 PM Kirk Herander <kirkh at vermont.solar> 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
>>
>
>
> --
>
> *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
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-- 

*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
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