[RE-wrenches] Simpliphi with SW inverters

[Chris Sparadeo]

William,

I have paired a handful of Trace SW inverters with  SimpliPhi batteries. I
most often run into this with clients that have 24vdc systems and for
whatever reason can’t/won’t make the leap to 48vdc. In my opinion,
SimpliPhi’s 24 volt offering is the best in its class. With the older
versions of the SW, settings can sometimes be erased by looking at the unit
the wrong way. I don’t believe that SimpliPhi explicitly calls out the
Trace SW as a compatible inverter, but they mostly play nice together. Just
write your settings down and make sure the homeowner knows how to program
in a pinch. I have seen a generator fail to start, the inverter shut off
and when turned back on, charging voltages resets to 28.8vdc and LBCO to
22.0vdc, which isn’t a great change for these specific batteries.

-Chris



On Thu, Oct 13, 2022 at 12:15 PM Steve Higgins via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> With the Trace SW, you should be able to program it to charge LFP
> batteries. It'll probably take a bit of tinkering to make it work...  Most
> LFP BMSs work better if you can set the inverter/charger into a 2 Stage
> charging mode.  If I remember correctly, there isn't a setting that forces
> the inverter/charger into 2 stage charging.
>
> So you'll have to experiment with the Absorb timer and Float Voltage to
> keep the voltage high enough to charge.  The voltage based 3 stage chargers
> will sometime record voltage surge errors with Lithium batteries., so you
> may also see the surging of voltage from the inverter, especially when the
> batteries are above 90% SOC.
>
> You may want to talk with Simplify and see if they have done any testing
> with the older Trace Sinewave inverters.     They charge a lot like the
> Older Outback (VFX) inverters, so you use that as a comparison.
>
>
>
> On Thu, Oct 13, 2022 at 8:58 AM Jay via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>> I think we might have a naming issue
>>
>> I’m thinking William is talking about the Trace SW
>> And I think Dave is talking about the Schneider SW
>>
>> Very different critters
>>
>> To Williams question you should be able to program it
>> to meet their specifications.
>>
>> Jay
>>
>> On Oct 13, 2022, at 9:49 AM, Dave Angelini Offgrid Solar via RE-wrenches <
>> re-wrenches at lists.re-wrenches.org> wrote:
>>
>> 
>>
>>
>> Webinar tomorrow on SW inverters.
>>
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Chris Sparadeo


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