Jay,
Do you mean: use the Aux relay to activate the Remote Power Off? What is
the low battery setting range for the Aux relay? I don't see it in the
manual.
Kent Osterberg
Blue Mountain Solar
On 3/22/2020 4:04 PM, Jay wrote:
Ray,
Have you heard bought about using the Aux relay to control the AC
output at what ever voltage you want?
Jay
On Mar 22, 2020, at 3:13 PM, Ray <r...@solarray.com> wrote:
That's the whole point: we need the LBCO to be higher than 48v to
catch the beginning of that steep drop off, so that there is still
enough reserve left to keep the monitoring and solar charge
controllers in operation, and avoid the dreaded dark start. With
Simpliphi, we don't have the dark start, but it still requires manual
reset. This isn't theoretical, we have been having serious trouble
with a system because of Schneider's inability to set the LVD above
48 v. Also setting the voltage higher (lower DOD) extends the cycle
life of these batteries. Otherwise, I love the stable 51 volts of
Li+, even under load.
Ray Walters
Remote Solar
303 505-8760
On 3/22/20 4:15 PM, Jerry Shafer wrote:
Wrenches
Don't let the LBCU scare you as this battery has such a flat SOC
line that when it falls off there is not much left in the tank. In
addition set the flex net to low SOC at 15% and critical to 10%.
On Sun, Mar 22, 2020, 12:15 PM Sindelar Solar
<al...@sindelarsolar.com <mailto:al...@sindelarsolar.com>> wrote:
Specifically with Blue Ion, the installation manual recommends
48V as LBCO, but also recommends setting it a bit higher:
"Recommended Low Voltage Disconnect Setting: 48 VDC (~2-10%
State of Charge)
BMU will power down the Blue Ion 2.0 cabinet at 44 VDC (<1%
State of Charge)
Based on system discharge patterns, SoC and voltage correlations
will vary.
We recommend you err on the side of caution with a higher LVD
setting and adjust as necessary.
To prevent a dark start event, we recommend leaving a little
reserve “fuel in the tank”."
I have used 48VDC with success, and had one system indeed shut
down at 44V, leaving 1% left to reboot.
Allan
On 3/22/2020 12:44 PM, Ray wrote:
Blue Ion, and Simpliphi that I know of.
Ray Walters
Remote Solar
303 505-8760
On 3/21/20 2:48 PM, Dave Angelini Offgrid Solar wrote:
I see what you mean Ray. Sorry I misread your mail. There are
not too many batteries out there that need LBCO above 48V.
Which ones are you talking about please?
*Dave Angelini Offgrid Solar*
*"we go where powerlines don't"
http://members.sti.net/offgridsolar/ e-mail
offgridso...@sti.net <mailto:offgridso...@sti.net> text 209
813 0060*
On Sat, 21 Mar 2020 11:18:21 -0700, Dave Angelini Offgrid
Solar <offgridso...@sti.net> <mailto:offgridso...@sti.net> wrote:
Hi Ray,
Which XW? There are 3 now. The old graybox XW defaults at 44V
LBCO and the range is 40 to 48V. There also was firmware back
in its day that got older units updated. Schneider still has
the firmware under discontinued products.
XW+ is default 44V and adjustable 36 to 44 vdc.
XW pro is running downstairs and I will take a look. It would
be my guess that it is the same as XW+. I think one needs to
be sure they are in Advanced settings to tweak LBCO also.
I am not plugging Schneider and have done work for both
Outback and Schneider as well as my clients. Hope this helps.
*Dave Angelini Offgrid Solar "we go where powerlines don't"
http://members.sti.net/offgridsolar/ e-mail
offgridso...@sti.net <mailto:offgridso...@sti.net> text 209
813 0060*
On Sat, 21 Mar 2020 11:46:21 -0400, Ray <r...@solarray.com>
<mailto:r...@solarray.com> wrote:
We've been having good luck with SImpliphi, the pricing
has recently gotten much more competitive. As it's names
states, its simple. Each 3.8 kWh unit has an 80 amp
breaker built into the top, weigh about 75 lbs, and are a
bit smaller than an L16 but with carry handles. We use
an insulated 2 pole combiner block to run all the
parallel conductors to the main 2/0 cable. No
monitoring, but they do have an handy setup guide with
recommended settings, specific for each manufacturer
(including Outback).
Note to all: Schneider XW can still not set its LVD
above 48, which basically makes it incompatible with most
Li+ batteries. Their tech support has been abysmal as
well. We're looking forward to them as one of the
larger companies in the business, to put additional
resources into their engineering, and come out with at
least a firmware update to correct this problem.
Ray Walters
Remote Solar
303 505-8760
On 3/20/20 3:59 PM, David Katz wrote:
Hello Wrenches,
I am working with some people that want to use a 20
kw-hour to 30 kw-hour 48 volt lithium-ion battery
with an Outback Radian and Outback FM charge controllers.
They are considering using Discover, Blue-Ion, Battle
Born or SimpliPhi batteries.
Does any one have any recommendations of which
battery functions best with the Outback system.
Thanks,
David Katz
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NABCEP Certified PV Installation Professional
New Mexico EE98J Journeyman Electrician
Founder (Retired), Positive Energy, Inc.
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