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"
[1]https://offgridsolar1.com/ [2] [1]
e-mail [email protected]
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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