Greetings Drake, This is interesting. I have Grid-tied OutBack Radian GS8048A with MidNite Classic 200 systems in the field, but don't believe I've seen this issue before. (But certainly have seen many strange MATE3 & OpticsRE issues)
Here are a few questions that come to mind: What is the Radian "Sell" voltage set at? Has this setting been checked since this issue was reported? Have the Classic 200 settings been checked to make sure they are set where they should be? Does the system have any data monitoring on the charge controller and/or battery system independent of the Radian inverter? If so, any information similar to the Events logged on the MATE3? Does this system have the OutBack FLEXnet DC installed? There could be more data to review to try and get a sense of what the issue may be. (shunt data, historical VDC data, any battery charging via grid?) If the system has more than one Classic 200 are they connected and set up in "Follow Me" mode? Any chance the charge controller or inverter/charger tried to initiate an equalization charge? Does the system have any DC loads or generation sources (other than the charge controller and inverter/charger) connected directly to the battery system or anywhere on the DC bus? Best regards, ----MATT Matthew Sirum P.O. Box 1227 Greenfield, MA 01302-1227 USA phone: +1.413.773.0611 email: matthewsi...@gmail.com ---------- Original Message Below ---------- [RE-wrenches] Over voltage error message Drake drake.chamberlin at redwoodalliance.org Mon Jul 17 05:36:46 PDT 2017 Hello Wrenches, My client reported seeing an overvoltage error message on her Mate 3 on a Radian system. The Radian is selling to the grid and is being fed by a Midnite Classic 200. It has shown two spikes so far, the last one going to 67 volts and lasting 1 second. The batteries are Concorde AGM, 305 AH. Does this momentary spike seem like a problem or a warning of problems to come? Thanks, Drake _______________________________________________ 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 List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
