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<DIV>Kevin,</DIV>
<DIV> </DIV>
<DIV> Not to add any confusion but I
recently had to re-program the slave in a 2 VFX with Xfrmr system as it was
doing the same thing...the 2 pole xfrmr breaker was tripping when a moderate
load was on. Granted this was not happening during charging though.
I think I changed the slave from OB slave L1 to OB slave L2 and all was
good. It doesn't seem likely the programming in your case would have been
messed with having been working well for years prior. Curious to hear
though of a solution eventually.</DIV>
<DIV> </DIV>
<DIV>Bill</DIV>
<DIV> </DIV>
<DIV>Feather River Solar Electric<BR>4291 Nelson St.<BR>Taylorsville, CA
95983<BR>530.284.7849 / 6544 fax</DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=tump@swnl.net href="mailto:tump@swnl.net">Tump</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=re-wrenches@lists.re-wrenches.org
href="mailto:re-wrenches@lists.re-wrenches.org">RE-wrenches</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, March 16, 2015 5:39
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [RE-wrenches] Outback quad
stack X240 breaker tripping</DIV>
<DIV><BR></DIV>Have you turned the breaker on the t240 to the off position?
One does NOT have to have that operational for the system to operate
correctly.The old t240 has about the same parasitic draw as an inverter.
Isolate, Isolate, Isolate. If the system functions correctly w/ the t240 off
and the stacking is correct on this q stack disconnect it(the t240). Otherwise
I would remove the inverter com cables and only connect 1 pair of inverters at
a time, reset the mate with the correct com cables connected to P1& P2.
Sometimes something so simple as disconnecting & reconnection the mate can
have quite a benefit. Again I would, if you are really stuck on having the
t240 operational, then try it with each inverter as a single unit then try the
second set of inverters. Disconnect the #s1&2 inverters and do the same;
connect #s 3&4 P1 & P2, to see exactly which component may be your
problem.
<DIV>You are more then happy to contact me off list if you choose. contact
info below. Tump<BR>
<DIV>
<DIV>
<DIV>On Mar 15, 2015, at 5:04 PM, Jerry Shafer wrote:</DIV><BR
class=Apple-interchange-newline>
<BLOCKQUOTE type="cite">
<DIV dir=ltr>
<DIV> Wrenches<BR>OK if the X240 blows the fuse which is on the output
of the inverter while the inverter is charging, excessive current must be
passing through from one inverter and back to the output of another inverter
( a form of AC coupling gone bad). The time delay fits as the inverter ramps
up, I would look at the contactors in each slave as one may be hanging or
ther may be a bad board, easy way to test is to isolate each inverter and
with a amp meter connected at the X240 see if current goes away in the X240
as it should not be doing much with light loads on the "House" side of the
inverters. The X240 is 25 amps while the inverters are 50 amps. Sounds like
a interesting one to diagnose.<BR></DIV>Jerry<BR></DIV>
<DIV class=gmail_extra><BR>
<DIV class=gmail_quote>On Wed, Mar 11, 2015 at 11:59 AM, Chris Worcester
<SPAN dir=ltr><<A href="mailto:chris@solarwindworks.com"
target=_blank>chris@solarwindworks.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV>
<DIV>Hi Kevin, </DIV>
<DIV>I have seen the X240's trip off like this when theyare
over loaded. When this was happening to us the slave inverters had blown
AC boards and some times Control and FET boards too. We had a hard
time diagnosing this as their green lights were on. Using a
clamp on amp meter on each inverter's AC IN conductor while charging
with the gen set allowed us to compare their charging currents to each
other. Typically the ones with blown AC boards output would be close
to zero amps. So the X240's were doing double duty and they will smoke too
if the inverters aren't delta with. </DIV>
<DIV><BR></DIV>
<DIV><BR></DIV>Sincerely, <SPAN class=HOEnZb><FONT color=#888888>
<DIV>Chris Worcester</DIV>
<DIV><A href="tel:530-448-9692" target=_blank
value="+15304489692">530-448-9692</A>
<DIV> Sent from my Galaxy S®III</DIV></DIV></FONT></SPAN><SPAN
class=""><BR><BR>
<DIV>-------- Original message --------</DIV>
<DIV>From: Kevin Pegg <U></U></DIV>
<DIV>Date:03/11/2015 1:19 PM (GMT-08:00) </DIV>
<DIV>To: RE-wrenches <U></U></DIV>
<DIV>Subject: [RE-wrenches] Outback quad stack X240 breaker tripping
</DIV>
<DIV><BR></DIV>Hello Wrenches, <BR><BR>Customer in remote location has a
strange situation come up on an existing system installed (by others) 6 or
so years go. Quad stack VFX3648. <BR><BR>Last night gen start was
triggered by low voltage - a normal system operation. <BR><BR>Approx 1h
into charge, they lost 1/2 the circuits in house - L2 de-energized.
Caretaker went to check power system and noticed the X240 breakers
tripped. Tried to reset but it tripped out right away. So he left it as is
and called me in the morning. <BR><BR>Here's what I've been able to
determine today: <BR><BR>- The x240 is installed to bridge L1 & L2 on
the load side. <BR>- with master inverter on, 3 slaves off, both L1 and L2
energized so suggests x240 is working. <BR>- within 10 seconds of
generator on and charging, x240 breaker trips (and makes L2 go dark).
<BR>- loads are minor, ~1,000 w of misc lights and such, isn't all loaded
up on one leg. <BR><BR>Appreciate any thoughts to remedy. I'm not as
familiar with this config as others. <BR><BR>Kevin Pegg<BR>EA Energy
Alternatives Ltd. <BR>37471 Hwy 16 E<BR>Telkwa, BC V0J 2X2<BR><A
href="tel:250-846-9888" target=_blank
value="+12508469888">250-846-9888</A><BR><A
href="http://www.EnergyAlternatives.ca/"
target=_blank>Http://www.EnergyAlternatives.ca</A>
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