Stacked Xantrex Inverters Throwing Fault / Warning Codes

[markpj23]

Very few search results for this and the owners manual is not much better...

I have two Xantrex SW-3012 model 815 inverters in a stacked configuration. Both are connected to a Xanbus System Control Panel (SCP). Both connect to one large house battery bank.
After some recent storms, I got to the boat today and found one of the units throwing a warning message "W72 AC OUT ASSOC MISMATCHED." Of course that warning is not listed anywhere in the manuals I have aboard.

Further investigation shows that my #1 unit seems to have completely wiped its configuration and lost its brains. I can see the Device Info fields all blank and/or showing "[]" on the SCP. The #2 unit has all the correct parameters in the Device Info fields.

I tried to re-program unit #1 but it will not take any inputs. I also rebooted / reset both units, checked my shore power connection (everything works on the boat including all my AC units), and have cycled both units ON/OFF using the SCP.

Unit #2 seems just fine. It is charging the way it should. I have not tried to run AC loads off of the inverter however since I don't want to make the issue worse.

For some strange reason Xantrex tech support is not working this Labor Day weekend.. Wondering if anyone here has dealt with this problem before?

 

[pjtemplin]

I'm no expert, but I'm guessing unit #1 flaked out, and unit #2 won't be happy that its peer is out to lunch. You may want or need to reprogram unit #2 to tell it that it's NOT in a pair for it to work properly (and likely take unit 1 offline completely) until you can get further guidance.

 

[HTurner]

Your error code is found here on page 114:


https://www.manualslib.com/manual/1663247/Xantrex-Freedom-Sw-Series.html?page=114


Change the AC In setting of both units in the stacking
configuration to be the same. See "Stacking Configuration
Menu" on page 68

 

[markpj23]

Your error code is found here on page 114:

https://www.manualslib.com/manual/1663247/Xantrex-Freedom-Sw-Series.html?page=114

...

Thanks for this - I had no luck finding it online.
Unfortunately, I cannot get Unit #1 to accept any programming at all.

 

[HTurner]

Thanks for this - I had no luck finding it online.
Unfortunately, I cannot get Unit #1 to accept any programming at all.

You may have to do a hard reset to the unit then redo programming.

 

[twistedtree]

I would try a hard reset, assuming there is a way to do that.


It's a somewhat different product family and has been part of Schneider for years, but I have an SW6548 at home, also using a Xanbus, SCP and some other stuff. I had lightening come in over a DSL line that shared a conduit with the xanbus and it took out everything on the xanbus except the two MPPT chargers. Hopefully yours will be easier to fix.

 

[markpj23]

Thanks for all the replies. I plan to wait until tech support is open, then try a hard reset & reconfiguration to see if I can get this resolved.

They must have updated the online Owners Guide as it has much more detail than my hard copy (now 101 pages vs 86).