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

[Kirk Herander]

And can't you just wire up the new inverter as a "dumb" battery charger
only? If you don't need to double KW to loads, don't try to stack it, or
connect it to the hub. Just cable it to the batteries, and wire the genny
to it's AC in. NO AC out wiring. When genny is running, it should charge
fine. A last resort.

On Sun, Mar 20, 2022 at 10:14 AM John Blittersdorf <
john.blittersd...@gmail.com> 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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Re: [RE-wrenches] 2nd VFX3648 added to double charger rate

[jay]

HI John,

Yes Its my understanding that they are backwards compatible.

So put the newer inverter as master, older as slave should work.

Jay



> On Mar 20, 2022, at 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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Re: [RE-wrenches] 2nd VFX3648 added to double charger rate

[William Miller]

John:

I have operated FX inverters of different firmware in one system (not
FXRs).  I was told the newest firmware should be in a lower port but the
system worked more reliably with the newer firmware unit in the higher
port. May be worth experimenting. Good luck.

William Miller

On Sun, Mar 20, 2022 at 7:14 AM John Blittersdorf <
john.blittersd...@gmail.com> 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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Miller Solar.com
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Re: [RE-wrenches] 2nd VFX3648 added to double charger rate

[John Blittersdorf]

>
> The system is 120v only from the generator and the house is 120 only.
>

John

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

[Maverick Brown]

Is the wiring 120/240 and Series or Parallel stacking? If parallel, one of the 
stacking options assumes you have a x-240 transformer and the slave is silent 
unless power save is high enough. Pick the parallel that keeps both inverters 
on at the same time   This is kinda foggy since it has been a while. 

A video from the Mayan era. 

https://youtu.be/9k1afbsQrAA

The Mate3(s) is easier. 


Maverick Brown
Off-Grid Solar Commander since 2006
Maverick Solar Enterprises, Inc.
 • Solar Commander Remote Power
 • SunFlow Systems Cathodic Protection 
maver...@mavericksolar.com
512-460-9825


> On Mar 20, 2022, at 9:15 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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Re: [RE-wrenches] 2nd VFX3648 added to double charger rate

[John Blittersdorf]

   I just checked my stock of control boards and just happen to have a
new unopened in the box that is firmware #68, same as the new used inverter
I installed.  I guess to be sure Outback wont have any other suggestions, I
will install the new board.  I charged the customer enough for the used
inverter to cover a control board.  First I will set the newer one as
Master and his older one as slave to see if it makes any difference. In the
description of the stacking configurations, There was no mention of Hub
requirements. I assume with these older inverters the older Hub should be
fine.   We ran lots of inverters at SolarFest with the old equipment.  I
know we are not supposed to promote things on this list but SolarFest in
Vermont will be in Brandon July 16-17.  SolarFest.org

On Sun, Mar 20, 2022 at 11:22 AM Kirk Herander  wrote:

> Do you have the proper hub 10.3 installed? And are the jumpers set
> correctly? Mate3S? it almost sounds like the slave is set in the Mate not
> to charge. And if not plugged into the correct hub port, stuff like this
> happens also. And the Mate3 might not work properly with newer inverters,
> as I remember.
>
> On Sun, Mar 20, 2022 at 10:55 AM Sindelar Solar 
> 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*
>> al...@sindelarsolar.com
>> New Mexico EE98J Journeyman Electrician
>> Founder (Retired), Positive Energy, Inc.
>> *505 780-2738 cell*
>>
>>
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>
> --
>
> *Kirk Herander / **kirkh@vermont.solar *
>
> *Owner|Principal, VT Solar, LLC*
>
> *Celebrating our 31st Anniversary 1991-2022!!*
>
> *www.vermont.solar*
> 
>
> dba Vermont Solar Engineering
>
> 802.863.1202
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Re: [RE-wrenches] 2nd VFX3648 added to double charger rate

[Kirk Herander]

Do you have the proper hub 10.3 installed? And are the jumpers set
correctly? Mate3S? it almost sounds like the slave is set in the Mate not
to charge. And if not plugged into the correct hub port, stuff like this
happens also. And the Mate3 might not work properly with newer inverters,
as I remember.

On Sun, Mar 20, 2022 at 10:55 AM Sindelar Solar 
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*
> al...@sindelarsolar.com
> New Mexico EE98J Journeyman Electrician
> Founder (Retired), Positive Energy, Inc.
> *505 780-2738 cell*
>
>
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*Kirk Herander / **kirkh@vermont.solar *

*Owner|Principal, VT Solar, LLC*

*Celebrating our 31st Anniversary 1991-2022!!*

*www.vermont.solar*


dba Vermont Solar Engineering

802.863.1202
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Re: [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 
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
>
>
> ___
> List sponsored by Redwood Alliance
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> --
>
> *Allan Sindelar*
> al...@sindelarsolar.com
> New Mexico EE98J Journeyman Electrician
> Founder (Retired), Positive Energy, Inc.
> *505 780-2738 cell*
>
>
> ___
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Re: [RE-wrenches] 2nd VFX3648 added to double charger rate

[Sindelar Solar]

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*
al...@sindelarsolar.com 
New Mexico EE98J Journeyman Electrician
Founder (Retired), Positive Energy, Inc.
*505 780-2738 cell*
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[RE-wrenches] 2nd VFX3648 added to double charger rate

[John Blittersdorf]

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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