[RE-wrenches] 2nd VFX3648 added to double charger rate

[John Blittersdorf]

Allan,
   The new VFXR has updatable firmware through the MATE3 but the old series
has firmware on the control board but not updatable.  I have run into this
before but lucked out that both older inverters had the same firmware.

John

On Sun, Mar 20, 2022 at 10:55 AM Sindelar Solar <Allan at sindelarsolar.com>
wrote:

> John,
> I've never faced your situation so can't address it directly. However, I
> don't think matching firmware requires replacing a control board. Can't you
> just update the firmware to the latest for that legacy product using a
> Mate3?
> The firware for these should be available at
> https://www.outbackpower.com/resources-mobile/technical-support/firmware-updates/item/fxr-vfxr-series-firmware-archive
> Allan
>
> On 3/20/2022 8:14 AM, John Blittersdorf wrote:
>
> Wrenches, I just added a 2nd VFX3648 stacked as SLAVE L1 to increase
> charging of his new eVault 18.5 from 12kw Kohler gen. It connects to the
> generator but doesn’t charge.  I read in the manual that both inverters
> must be the same firmware revision.  Once hooked up I found that the added
> inverter was rev #68 and the original one rev 61.  Would it be possible to
> switch which inverter is the master and have the newer one recognize the
> older one.? Otherwise is my only option to put a new control board in the
> original inverter? And possibly also in the new one.  Anyone know what the
> latest rev or last one was?
>
> John Blittersdorf
>
>
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> --
>
> *Allan Sindelar*
> allan at sindelarsolar.com
> New Mexico EE98J Journeyman Electrician
> Founder (Retired), Positive Energy, Inc.
> *505 780-2738 cell*
>
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