<div dir="ltr"><img width="0" height="0" class="mailtrack-img" alt="" style="display:flex" src="https://mailtrack.io/trace/mail/d7bc25db4f164ae881240ad93a40c92110f964f8.png?u=1613865"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">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.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">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.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">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.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Jason Szumlanski</div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><table border="0" cellpadding="0" cellspacing="0" style="font-family:"helvetica neue",helvetica,arial,sans-serif"><tbody><tr><td rowspan="2"><br></td><td rowspan="2"></td></tr></tbody></table><b><div style="text-align:center"><br></div></b></div></div></div></div></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, May 23, 2019 at 5:55 PM Drake <<a href="mailto:drake.chamberlin@redwoodalliance.org">drake.chamberlin@redwoodalliance.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
Hello Wrenches,<br><br>
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.<br><br>
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. <br><br>
Thanks,<br><br>
Drake<br><br>
<a name="m_2252129285196619483__MailAutoSig"></a>Drake Chamberlin<br>
<i>Athens Electric LLC<br>
OH License 44810<br>
CO License 3773<br>
NABCEP Certified Solar PV <br>
740-448-7328<br>
</i><a href="https://mailtrack.io/trace/link/ae5718564ab0ad98cc8e5e3a6b1b15daca9f5e73?url=http%3A%2F%2Fathens-electric.com%2F&userId=1613865&signature=ddda0dd5ee348438" target="_blank">http://athens-electric.com/</a>
<br><br>
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