<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"></div><div dir="ltr">Hi Ray</div><div dir="ltr"><br></div><div dir="ltr">This house won’t have an AGS, manual start only. </div><div dir="ltr"><br></div><div dir="ltr">And your comments exactly, having to wait until the next day when hopefully there is enough sun to charge the battery is iffy. </div><div dir="ltr"><br></div><div dir="ltr">Or they could do the inverter bypass switch. </div><div dir="ltr"><br></div><div dir="ltr">Again I’m back to why is it a worse idea to install a relay on the AC? </div><div dir="ltr"><br></div><div dir="ltr">Thx</div><div dir="ltr"><br></div><div dir="ltr">Jay</div><div dir="ltr"><br></div><div dir="ltr">As to the sol ark which I never thought about it being in a sense an AC coupled system. IE if the inverter is off it won’t charge. </div><div dir="ltr">I guess you’ll have to install an external battery charger?</div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br><blockquote type="cite">On Jul 20, 2023, at 5:08 PM, Ray Walters via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
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<p>The aux off is only if the generator doesn't start. You need to
set the gen start voltage higher. Aux off is last ditch shut down,
set for 44v for lead acid, or 47 to 49v, depending on the battery
and inverter. Hopefully DC coupled PV will raise the voltage
enough to turn the inverters back on the next day. <br>
</p>
<p>This is my concern on Solark installs, I just noticed that the
inverter won't pass through PV, if it hits its LVD set point. <br>
</p>
<div class="moz-cite-prefix">On 7/20/2023 3:04 PM, jay via
RE-wrenches wrote:<br>
</div>
<blockquote type="cite" cite="mid:46047C41-C43E-4B10-BCDC-2222CB563147@gmail.com">
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HI All,
<div class=""><br class="">
</div>
<div class="">I wanted to revisit this thread for one reason.</div>
<div class=""><br class="">
</div>
<div class="">If you turn off the inverter at the remote on/off
with the AUX relay, then starting the generator won’t have any
impact as the inverter is off. </div>
<div class="">So someone will have to go and reset the AUX relay.</div>
<div class=""><br class="">
</div>
<div class="">Vs</div>
<div class=""><br class="">
</div>
<div class="">If you do a relay on the AC output, when you start
the generator, it will start charging, raising the battery
volts, causing the AUX relay to close AC output relay and you’ll
have power in the house.</div>
<div class=""><br class="">
</div>
<div class="">Am I missing something?</div>
<div class=""><br class="">
</div>
<div class="">thanks</div>
<div class=""><br class="">
</div>
<div class="">jay</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class="">Here is the last email I think:</div>
<div class=""><br class="">
</div>
<div class="">
<pre style="font-family: courier, "courier new", monospace; font-size: 14px; white-space: pre-wrap; overflow-wrap: break-word; margin: 0em;" class="">Mac,
</pre>
<tt style="margin: 0px; font-family: courier, "courier
new", monospace; font-size: 14px;" class="">I think
you've got an elegant solution to the problem. All you need
is </tt><tt style="margin: 0px; font-family: courier,
"courier new", monospace; font-size: 14px;" class="">an
inexpensive relay and to program the Aux output for loadshed.
I </tt><tt style="margin: 0px; font-family: courier,
"courier new", monospace; font-size: 14px;" class="">believe
shutting down the inverter with the remote on/off contacts is </tt><tt style="margin: 0px; font-family: courier, "courier
new", monospace; font-size: 14px;" class="">actually less
stressful on the inverter than opening a relay or </tt><tt style="margin: 0px; font-family: courier, "courier
new", monospace; font-size: 14px;" class="">contactor on
the load side.</tt>
<pre style="font-family: courier, "courier new", monospace; font-size: 14px; white-space: pre-wrap; overflow-wrap: break-word; margin-top: 0px; margin-bottom: 0px;" class="">Kent Osterberg
Blue Mountain Solar
On 7/11/2023 5:19 PM, Mac Lewis via RE-wrenches wrote:
</pre>
<blockquote style="margin: 0em; padding: 0px 0px 0px 0.85em;
color: rgb(160, 30, 30); border-left-width: 0.2em;
border-left-style: solid; border-left-color: rgb(85, 85, 238);
font-family: helvetica, arial, sans-serif; font-size: 14px;" class="">
<pre style="font-family: courier, "courier new", monospace; font-size: 1em; white-space: pre-wrap; overflow-wrap: break-word; margin: 0em;" class="">Hello Wrenches,
</pre>
<tt style="margin: 0px; font-family: courier, "courier
new", monospace; font-size: 1em;" class="">I'm trying
to solve an issue with an older Outback FX system. It's a </tt><tt style="margin: 0px; font-family: courier, "courier
new", monospace; font-size: 1em;" class="">quad stack
of Outback 3648 FX inverters and he has a couple of </tt><tt style="margin: 0px; font-family: courier, "courier
new", monospace; font-size: 1em;" class="">Fortress
eVault and an unreliable generator. The LBCO setting can't
go </tt><tt style="margin: 0px; font-family: courier,
"courier new", monospace; font-size: 1em;" class="">high enough to cut out before the eVaults cut out
so he </tt><tt style="margin: 0px; font-family: courier,
"courier new", monospace; font-size: 1em;" class="">occasionally will have to direct charge the eVault
to get things </tt><tt style="margin: 0px; font-family:
courier, "courier new", monospace; font-size:
1em;" class="">running again.</tt><tt style="margin: 0px;
font-family: courier, "courier new", monospace;
font-size: 1em;" class="">I'd like to use a 12V Aux relay
logic to trip the primary inverter </tt><tt style="margin:
0px; font-family: courier, "courier new",
monospace; font-size: 1em;" class="">on/off contacts before
we go into battery shutdown so the solar has a </tt><tt style="margin: 0px; font-family: courier, "courier
new", monospace; font-size: 1em;" class="">chance to
recover the system. Pretty simple overall but I wanted to </tt><tt style="margin: 0px; font-family: courier, "courier
new", monospace; font-size: 1em;" class="">see if there
are any known ill effects of doing this with substantial </tt><tt style="margin: 0px; font-family: courier, "courier
new", monospace; font-size: 1em;" class="">load on the
system. Of course, I can use a power relay but this may </tt><tt style="margin: 0px; font-family: courier, "courier
new", monospace; font-size: 1em;" class="">be better.</tt>
<pre style="font-family: courier, "courier new", monospace; font-size: 1em; white-space: pre-wrap; overflow-wrap: break-word; margin: 0em;" class="">Thanks for your input!
--</pre>
</blockquote>
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