I am interested to know as well. I have an old quad XW system I am working with and two of the four inverters are WAY off on DC voltage reading. I don't think there is any "sync" capability, but they can be calibrated using the config tool. In the end I gave up hope and abandoned the inverters for purposes of AGS and I'm charging with just two of the four that have values that closely correspond to the actual battery voltage. It became a problem when the inverters and XW charge controllers couldn't play nice with a LiPO BMS so I just rigged the charge control settings to work and abandoned the XW components that were not playing nice. Sadly this client will never be able to charge with all four XW inverters unless the DC parameters get fixed because they throw the BMS into disarray and cause shutdowns.
I think this is going to be an ongoing issue with new BMS systems that come out and are paired by contractors with a variety of inverter/chargers. They may not play nice. That is the appeal of a system in a box approach that some battery manufacturers are taking. Of course, there are downsides to that approach as well. As an aside, the battery/BMS manufacturer blamed a welded shut BMS contactor on the inverter manufacturer for not including pre-charge devices in the inverter. I'm sure the inverter manufacturer would blame the BMS manufacturer for not making the BMS failsafe from this condition. May the finger-pointing begin! On a good note the BMS manufacturer replaced them at no charge. Jason Szumlanski On Thu, May 23, 2019 at 5:55 PM Drake <drake.chamber...@redwoodalliance.org> wrote: > Hello Wrenches, > > Does anyone know how to synchronize the DC voltage readings on Schneider > inverters using the configuration tool? I don't think that information is > in the manual. > > My information is that the configuration tool is required to synchronize > the DC readings on the inverters, in order for two or three paralleled > inverters all be able to sell to the grid. One of two is selling now, and > we plan to add a 3rd. > > Thanks, > > Drake > > Drake Chamberlin > > > > > > *Athens Electric LLC OH License 44810 CO License 3773 NABCEP Certified > Solar PV 740-448-7328 *http://athens-electric.com/ > <https://mailtrack.io/trace/link/ae5718564ab0ad98cc8e5e3a6b1b15daca9f5e73?url=http%3A%2F%2Fathens-electric.com%2F&userId=1613865&signature=ddda0dd5ee348438> > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <https://mailtrack.io/trace/link/8ca098c55b02475cdc778f8a183f79ba394e211b?url=http%3A%2F%2Flists.re-wrenches.org%2Foptions.cgi%2Fre-wrenches-re-wrenches.org&userId=1613865&signature=8bb4c4a0b0365b65> > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > <https://mailtrack.io/trace/link/af0754112bc54a35b211e84fd8b12c54e6273cbf?url=http%3A%2F%2Fwww.mail-archive.com%2Fre-wrenches%40lists.re-wrenches.org%2Fmaillist.html&userId=1613865&signature=36bf2cbfeb42cf4e> > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > <https://mailtrack.io/trace/link/d70424cfcdca882155c50bf7625d655e77f9d53c?url=http%3A%2F%2Fwww.re-wrenches.org%2Fetiquette.htm&userId=1613865&signature=1e7a2b53836fcbed> > > Check out or update participant bios: > www.members.re-wrenches.org > <https://mailtrack.io/trace/link/8db1a00328a4f9dd4b9b0619fdf73e76e464e933?url=http%3A%2F%2Fwww.members.re-wrenches.org&userId=1613865&signature=240d40b67485ec40> > >
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