Jesse,
The controller is supposed to limit the output current to 80 amps. But
the 80-amp GFDI breakers will trip anyway.
Kent Osterberg
Blue Mountain Solar, Inc.
www.bluemountainsolar.com
On 5/28/2013 9:01 PM, Jesse Dahl wrote:
When I was looking at the Outback Flexone setup today during some down time I
notice that they send that package out with an 80A PV breaker and an 80A GFDI
breaker. If a person had an array up at 2500W and a 24V battery bank, on some
occasions, wouldn't this lead to tripping of the 80A breaker on the output
side of the charge controller?
2500W/24V (just for math sakes)=104A
Jesse
Sent from my iPhone
On May 28, 2013, at 10:10 AM, "SunHarvest" <e...@harvesthesun.com> wrote:
Jesse,
I have an FM80 on an array of 2560 STC; all off-grid. The only issue I have is that when
my batteries are full, and I have essentially zero loads, and the sun is shining away, my
XW will disconnect and my house will lose power. I have to reset the system to get back
online. This, I'm pretty sure is not a malfunction of the FM80, but rather an issue with
the XW, just haven't had time yet to fully trouble-shoot. I think it's a matter of
reconfiguring the XW charging setpoints. I haven't had any direct issues with the FM80
with this STC "over power" set up.
Eric
SunHarvest
(530)98-3738
----- Original Message ----- From: "Jesse Dahl" <dahlso...@gmail.com>
To: "Wrenches" <RE-wrenches@lists.re-wrenches.org>
Sent: Friday, May 24, 2013 8:06 PM
Subject: [RE-wrenches] FM80
Hello,
I'm working on bid for a system using the FM80 controller. The specs for the controller
say the maximum STC wattage for a 24V system is 2500W. The array I want to use has a STC
wattage 2550. I called outback to ask if this was "close enough" today and
didn't get a reply (holiday weekend?!) I also called the distributor I buy my parts
through and they said it wouldn't be a problem.
I don't want to lose warranty of something happens. I don't want to use
different modules. I don't want to have to add another controller and split up
the array just for 50W.
Thoughts?
Have a good holiday weekend!
Jesse
_______________________________________________
List sponsored by Home Power magazine
List Address: RE-wrenches@lists.re-wrenches.org
Change email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
List rules & etiquette:
www.re-wrenches.org/etiquette.htm
Check out participant bios:
www.members.re-wrenches.org
