Hi Lou,

I might suggest a relay that switches with the signal for ags start/stop. 
It'll disconnect the AC from the genset with a lot shorter delay. 

Jay

Peltz power. 



Sent from my iPhone

> On Dec 29, 2016, at 11:27 AM, Lou Russo <l...@spreesolarsystems.com> wrote:
> 
> Wrenches,
> 
> I recently installed a Schneider Conext SW 4024, Schnieder's DC Distribution 
> panel, AC Distribution panel, SCP, and the AGS. It was to be a 
> straightforward inverter swap, Xantrex 4024 to the Conext SW setup. The 
> actual installation went fine. I did switch over the house wiring from 120 to 
> 240  as well as the diesel genset. 
> 
> After a steep learning curve with the client all seemed well. 1 week later 
> she called and says the power behaves oddly as the generator is shutting 
> down. Symptoms are some arc fault breakers trip and the compressor on her 
> fridge sounds like its bogging down. I make the 45 minute drive out and 
> started my search. This is a site with 3 buildings on 3 acres. I double 
> checked all my wiring at the inverter, then moved onto the various buildings 
> checking for redundant neutral to grounds, proper bonding, etc… Surprisingly 
> although not great workmanship everything is where it is supposed to be. I 
> decided to give the AC input on the inverter it's own dedicated neutral as at 
> this point I was reaching for straws and the installation manual was unclear 
> about this detail. Still nothing. A call to Schnieder confirmed that there 
> was no setting I was missing. 
> 
> I placed another call to Schnieder tech support. They did and have continued 
> to answer the phone promptly. It did take a bit of chasing them but I finally 
> got a answer that there Level 3 folks can reproduce the error. The inverter 
> is following the frequency of the genset as it winds down down to 40hrtz. 
> This is after the AC transfer inside the inverter has happened. During the 
> cool down period everything is fine. This happens as the genset is actual 
> shutting off and spinning down to a stop. They say this a firmware issue and 
> that it will take months to push out as is needs to be UL listed. In the 
> meantime I have a pissed off client, her oven went belly up on the low 
> frequency voltage, there is concern about possible unseen damage to her new 
> water pump, and I  wasted countless hours of my own time attempting to make 
> the situation right. All of this due to a firmware that was released with a 
> fatal flaw and can not be changed for months. 
> 
> I am extremely disappointed in Schneider. I have been hesitant use them over 
> the years as I was still scarred from the Xantrex days. My “beta” test went 
> will with a early version I installed 2 years ago so I figured it was a safe 
> move. Obviously I was wrong. Lesson learned stick with Outback and SMA. 
> 
> So I have 2 questions for the list.
> 
> 1.Has anybody else on the list seen this issue and corrected it regardless of 
> the firmware? I have installed one other conext sw about 2 years ago when it 
> first came out. The setup is very similar except that it is 48V and has a 
> very old firmware. I went out to this old site to confirm all is well and it 
> is fine.
> 
> 2.Does anybody have a good contact at Schneider that could be of help? I 
> tried to contact Sandra Herrera as she was a great help years ago, but her 
> phone number no longer works. 
> 
> 3.Does anybody have an old version of the Conext firmware lying around they 
> could point me to? The website does not seem to have old versions.   
> 
> Any input is greatly appreciated!
> 
> Schnieder, if you have a presence here contact me. 
> 
> 
> Aloha,
> 
> Lou Russo
> l...@spreesolarsystems.com
> 440 345 6762
> Spree Solar Systems LLC 
> CT-34322
> 
> _______________________________________________
> 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
> 
_______________________________________________
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

Reply via email to