[RE-wrenches] Schneider MPPT Nominal Voltage Won't Stick

[Jason Szumlanski]

It's much easier to use Insight, but I didn't have the password initially,
and resetting the InsightHome device always seems to give me issues with
creating a new password. I eventually got into it.

I can't even get the SCP to change the generator AGS mode from manual on to
automatic. That is problematic because the homeowner can't change the
setting with the SCP.


Jason Szumlanski
Principal Solar Designer | Florida Solar Design Group
NABCEP Certified Solar Professional (PVIP)
Florida State Certified Solar Contractor CVC56956
Florida Certified Electrical Contractor EC13013208


On Wed, Jan 14, 2026 at 10:01 AM Glenn <glenn.burt at glbcc.com> wrote:

> I have had this experience as well with a couple of Schneider systems. The
> SCP doesn't seem to be the master when an Insight or gateway is on the
> Xanbus.
>
> Generator settings and charge controller settings have not stuck.
>
> -Glenn
>
> On Jan 14, 2026 08:46, Jason Szumlanski via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
> I updated the settings for all devices via InsightLocal and the settings
> are sticking now. I think there was some sort of conflict. When I changed
> settings via the SCP, they would not be reflected in InsightLocal, but when
> I changed settings in InsightLocal the settings would instantly change on
> the SCP.
>
> I think the source of the high DC voltage issue was something else,
> however. I discovered that all of the charge controllers were set to
> Flooded rather than Custom battery type (for LFP), and some of the charge
> controllers had equalization enabled.
>
> It was cloudy yesterday, so I have to wait until solar gets the batteries
> to 100%, hopefully today, to see if the high DC voltage issue comes back.
>
>
> Jason Szumlanski
> Principal Solar Designer | Florida Solar Design Group
> NABCEP Certified Solar Professional (PVIP)
> Florida State Certified Solar Contractor CVC56956
> Florida Certified Electrical Contractor EC13013208
>
>
> On Tue, Jan 13, 2026 at 6:33 PM Dave Angelini Offgrid Solar via
> RE-wrenches <re-wrenches at lists.re-wrenches.org> wrote:
>
> A guess is too many devices on the xanbus. Are you using Facility?  The
> -60 reverting is a new one for me. Maybe isolate each one seperately in
> case one is malo.
>
> buenas suerte!
>
>
>
> *Dave Angelini Offgrid Solar
> "we go where powerlines don't"
>    <http://members.sti.net/offgridsolar/>https://offgridsolar1.com/ <https://offgridsolar1.com/>  <http://members.sti.net/offgridsolar/>
> e-mail  offgridsolar at sti.net <offgridsolar at sti.net>
> text 209 813 0060*
>
>
> On 2026-01-13 4:29 am, Jason Szumlanski via RE-wrenches wrote:
>
> I have a new client with an existing Schneider dual XW Pro system with
> four MPPT 100 and two MPPT 60 charge controllers. They have a SCP, AGS, and
> Insight.
>
> The system is reporting DC over voltage faults on the two inverters
> (viewable via SCP. The battery voltage is not high. It's a bank of EG4 LL
> batteries that would hit their high battery cutoff well before the XW
> detects a high battery condition.
>
> I went through all of the setting and discovered that the two MPPT 60 were
> set to a nominal voltage of 36V. I fixed that by changing them to 48V and
> cleared the faults and all was well. I did this though the SCP.
>
> By the time I came home, however, the faults returned and the MPPT 60 both
> reverted to 36V nominal.
>
> I'm not sure why the DC over voltage faults are showing up on the XWs, but
> it seems related to the nominal voltage issue on the MPPT 60s.
>
> Any ideas?
>
> Schneider tech support has me wasting time today going for a boat ride to
> the site to put a meter on the battery terminals, when I know it's
> obviously not an actual battery voltage issue. I'm hoping to steer them in
> a different direction.
>
>
> Jason Szumlanski
> Florida Solar Design Group
>
>
>
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