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<DIV><SPAN class=873270700-26032015><FONT face=Arial color=#0000ff
size=2>Wrenches, </FONT></SPAN></DIV>
<DIV><SPAN class=873270700-26032015><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=873270700-26032015><FONT face=Arial color=#0000ff size=2>A site
visit discovered two of the AC input breakers on L2 inverters had tripped but
the handles didn't move. A forced reset of the breakers resolved the
issue. System back to proper operations and customer is
happy. </FONT></SPAN></DIV>
<DIV><SPAN class=873270700-26032015></SPAN> </DIV>
<DIV><SPAN class=873270700-26032015><FONT face=Arial color=#0000ff
size=2>Kevin</FONT></SPAN><SPAN class=873270700-26032015> </SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> RE-wrenches
[mailto:re-wrenches-bounces@lists.re-wrenches.org]<B>On Behalf Of </B>Phil
Undercuffler<BR><B>Sent:</B> March 18, 2015 3:46 PM<BR><B>To:</B>
RE-wrenches<BR><B>Subject:</B> Re: [RE-wrenches] Outback quad stack X240
breaker tripping<BR><BR></FONT></DIV>
<DIV dir=ltr>
<DIV class=gmail_default
style="FONT-SIZE: small; FONT-FAMILY: arial,helvetica,sans-serif">There was a
certification update the last year or so where UL standards on transformers
changed. If you have an X240 that came with a 25, then it was from the
old math. The X240s that ship under the new math have 20A
breakers. Like you, I've installed tons of X240s with 25A breakers, but
either one works.</DIV>
<DIV class=gmail_default
style="FONT-SIZE: small; FONT-FAMILY: arial,helvetica,sans-serif"><BR></DIV>
<DIV class=gmail_default
style="FONT-SIZE: small; FONT-FAMILY: arial,helvetica,sans-serif">Phil
</DIV></DIV>
<DIV class=gmail_extra><BR>
<DIV class=gmail_quote>On Wed, Mar 18, 2015 at 1:18 PM, Jerry Shafer <SPAN
dir=ltr><<A href="mailto:jerrysgarage01@gmail.com"
target=_blank>jerrysgarage01@gmail.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<P dir=ltr>Phil<BR>Please confirm i have built lots of ps2 and 4 seams to
always have 25's on the x240 not 20's<SPAN class=HOEnZb><FONT
color=#888888><BR>Jerry</FONT></SPAN></P>
<DIV class=HOEnZb>
<DIV class=h5>
<DIV class=gmail_quote>On Mar 18, 2015 10:04 AM, "Phil Undercuffler" <<A
href="mailto:solarphil@gmail.com" target=_blank>solarphil@gmail.com</A>>
wrote:<BR type="attribution">
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV dir=ltr>
<DIV class=gmail_default
style="FONT-SIZE: small; FONT-FAMILY: arial,helvetica,sans-serif">The
PSX-240 (independent unit in enclosure) has active cooling, so it has a
higher capacity and therefore the 25A breaker. The X-240 (bare
xformer) should have a 20A. The good news is, in OutBack Stacking
the xformer is balancing the phases, which since there are inverters on
both phases means that it typically is only processing 1-2kW or so,
usually much less. </DIV>
<DIV class=gmail_default
style="FONT-SIZE: small; FONT-FAMILY: arial,helvetica,sans-serif"><BR></DIV>
<DIV class=gmail_default
style="FONT-SIZE: small; FONT-FAMILY: arial,helvetica,sans-serif">Phil</DIV></DIV>
<DIV class=gmail_extra><BR>
<DIV class=gmail_quote>On Wed, Mar 18, 2015 at 10:34 AM, Allan Sindelar
<SPAN dir=ltr><<A href="mailto:allan@sindelarsolar.com"
target=_blank>allan@sindelarsolar.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 style="COLOR: rgb(0,0,0); BACKGROUND-COLOR: rgb(255,255,255)"
text="#000000" bgcolor="#FFFFFF">Kevin and Matt,<BR>Good advice from
Matt. Just one detail: On the Outback PSX-240 (the independent unit with
enclosure) the output breakers are 25A, not 20A. I suspect that the
2P<BR>breaker for the X-240 would be the same. As the unit often
operates at close to its capacity, this could make a
difference.<SPAN><BR>Allan<BR><BR>
<DIV>
<DIV>
<P class=MsoNormal><B>Allan Sindelar</B><BR><SPAN
style="FONT-SIZE: 10pt"><A href="mailto:allan@sindelarsolar.com"
target=_blank>allan@sindelarsolar.com</A></SPAN><BR><SPAN
style="FONT-SIZE: 10pt">NABCEP Certified PV Installation
Professional<BR>NABCEP Certified Technical Sales Professional<BR>New
Mexico EE98J Journeyman Electrician<BR>Founder (Retired), <SPAN>Positive
Energy, Inc.</SPAN><BR><B><A href="tel:505%20780-2738" target=_blank
value="+15057802738">505 780-2738</A>
cell</B><BR><BR><B><U></U><U></U></B></SPAN></P>
<P class=MsoNormal><U></U><U></U> </P></DIV></DIV></SPAN>
<DIV>
<DIV>
<DIV>On 3/17/2015 2:56 PM, Kevin Pegg wrote:<BR></DIV>
<BLOCKQUOTE type="cite">
<DIV><SPAN><FONT face=Arial color=#0000ff>Thanks, Matt for the details
here. </FONT></SPAN></DIV>
<DIV><SPAN></SPAN> </DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff>I will be heading out to the
site in the next little while and will report back what was found.
</FONT></SPAN></DIV>
<DIV><SPAN></SPAN> </DIV>
<DIV><SPAN><FONT face=Arial color=#0000ff>Kevin</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV dir=ltr align=left><FONT face=Tahoma>-----Original
Message-----<BR><B>From:</B> RE-wrenches [<A
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
target=_blank>mailto:re-wrenches-bounces@lists.re-wrenches.org</A>]<B>On
Behalf Of </B>Matt James<BR><B>Sent:</B> March 17, 2015 12:22
PM<BR><B>To:</B> RE-wrenches<BR><B>Subject:</B> Re: [RE-wrenches]
Outback quad stack X240 breaker tripping<BR><BR></FONT></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Kevin,<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Not
sure what happened on the dropped communication, but I had responded
to you last week with some possible answers and things to
check. I think I made the mistake of replying directly to your
email address and not sending to the entire Re-Wrenches forum, sorry
for that as I know this is information that could be helpful to
others as well.<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">In
any case, Tump is right -- on an existing system where everything
has been working fine for some time but now isn’t, the key is to
isolate, isolate, isolate. Turn off all AC input, output and
transformer breakers, then wake up each inverter by increasing the
Power Save Level Master Adjust one step at a time. Confirm
proper AC voltage line to neutral at the inverter’s AC output
terminals – all breakers are still open.
<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Close
the breaker to the X240 balancing transformer, then close the AC
output breakers of one inverter at a time, starting with the
Master. Confirm that all inverters are on and have proper
voltage and phasing by verifying proper AC voltage line to neutral,
line to line as measured at the AC output terminals and to the
output bus bars – all inverters should show 120 L-N, and any
inverters programmed as L1 Slaves should show 0v L-L to the Master
and 240v L-L to L2 Slaves. L2 slaves <U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">This
establishes a baseline to ensure that all the power electronics,
magnetics, wiring and programming are working properly.
<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Next,
start the generator and close all the input breakers. Measure
AC voltage at the inverter’s input terminals, confirm that each is
seeing the proper voltage and phasing. Verify that the
inverters sync to and connect to the generator, and begin to
charge. Measure the AC current on both phases of the
generator, and verify that they are balanced.
<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Some
potential issues are:<U></U><U></U></SPAN></P>
<P><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">1.</SPAN><SPAN
style="FONT-SIZE: 7pt; COLOR: #1f497d">
</SPAN><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Bad
X240 breaker. Take a spare, 20A 2 pole
DIN.<U></U><U></U></SPAN></P>
<P><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">2.</SPAN><SPAN
style="FONT-SIZE: 7pt; COLOR: #1f497d">
</SPAN><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Transformer
insulation damaged, typically by overheating. Rather unlikely,
but possible.<U></U><U></U></SPAN></P>
<P><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">3.</SPAN><SPAN
style="FONT-SIZE: 7pt; COLOR: #1f497d">
</SPAN><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Failed
or mis-wired or mis-programmed inverter, likely on L2. Due to
the distance to the site, consider taking a replacement board set
with you. Alternately, the system can operate on both legs
with the other inverters, even if it’s an uneven number, through
OutBack Stacking until you can schedule another
trip.<U></U><U></U></SPAN></P>
<P><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">4.</SPAN><SPAN
style="FONT-SIZE: 7pt; COLOR: #1f497d">
</SPAN><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Heavily
imbalanced load or generator.<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">If
the charging currents on the generator are imbalanced, one possible
solution is to disconnect the neutral from the generator at the
power system end. This presents a pure 240v load to the
genset, which will force the currents to be balanced on both
phases. <U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Feel
free to contact me directly if you have any problems or
questions.<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><U></U><U></U></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Best
Regards,<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><U></U><U></U></SPAN> </P>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Matt
James<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Applications
Engineering Manager<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">OutBack
Power Technologies Inc.<U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Direct:
<A href="tel:%28360%29%20618-4364" target=_blank
value="+13606184364">(360) 618-4364</A><U></U><U></U></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Cell:
<A href="tel:%28360%29%20618-2869" target=_blank
value="+13606182869">(360)
618-2869</A><U></U><U></U></SPAN></P></DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><U></U><U></U></SPAN> </P>
<DIV>
<DIV
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 3pt; BORDER-BOTTOM: medium none">
<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">From:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">
RE-wrenches [<A
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
target=_blank>mailto:re-wrenches-bounces@lists.re-wrenches.org</A>]
<B>On Behalf Of </B>Kevin Pegg<BR><B>Sent:</B> Monday, March 16,
2015 10:51 AM<BR><B>To:</B> RE-wrenches<BR><B>Subject:</B> Re:
[RE-wrenches] Outback quad stack X240 breaker
tripping<U></U><U></U></SPAN></P></DIV></DIV>
<P class=MsoNormal><U></U><U></U> </P>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Arial','sans-serif'">Thanks
for everyone's advise on this one. I've done as much as I can
working with the caretaker remotely and will need to attend myself
with some test gear to fully diagnose. This site is remote (10h
of driving then 1h boat ride). I generally make a point of avoiding
Outback product so feel much better informed to diagnose when onsite
- later in the week. Thanks. </SPAN><U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal><U></U><U></U> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Arial','sans-serif'">Curious
what is going on with Outback's tech support. I waited on hold for a
bit on Wednesday, then left a message for callback and am still
waiting for that callback 3 business days later.
</SPAN><U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal><U></U><U></U> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Arial','sans-serif'">My
client is most upset that Outback can't even bother to return a tech
call. His instructions to me are if we find multiple
failed components in the system and not simple fixes to remove
the gear and replace with "anything as long as it's not Outback".
</SPAN><U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal><U></U><U></U> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Arial','sans-serif'">Will
advise the list what was discovered once onsite.
</SPAN><U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal><U></U><U></U> </P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Arial','sans-serif'">Kevin</SPAN><U></U><U></U></P></DIV>
<BLOCKQUOTE
style="MARGIN-TOP: 5pt; MARGIN-BOTTOM: 5pt; MARGIN-RIGHT: 0in">
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">-----Original
Message-----<BR><B>From:</B> RE-wrenches [<A
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
target=_blank>mailto:re-wrenches-bounces@lists.re-wrenches.org</A>]<B>On
Behalf Of </B>frenergy<BR><B>Sent:</B> March 16, 2015 6:38
AM<BR><B>To:</B> RE-wrenches<BR><B>Subject:</B> Re: [RE-wrenches]
Outback quad stack X240 breaker tripping</SPAN><U></U><U></U></P>
<DIV>
<P class=MsoNormal>Kevin,<U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal><U></U><U></U> </P></DIV>
<DIV>
<P class=MsoNormal> 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.<U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal><U></U><U></U> </P></DIV>
<DIV>
<P class=MsoNormal>Bill<U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal><U></U><U></U> </P></DIV>
<DIV>
<P class=MsoNormal>Feather River Solar Electric<BR>4291 Nelson
St.<BR>Taylorsville, CA 95983<BR><A href="tel:530.284.7849"
target=_blank value="+15302847849">530.284.7849</A> / 6544
fax<U></U><U></U></P></DIV>
<BLOCKQUOTE
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 4pt; PADDING-BOTTOM: 0in; MARGIN: 5pt 0in 5pt 3.75pt; BORDER-LEFT: black 1.5pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">-----
Original Message ----- <U></U><U></U></SPAN></P></DIV>
<DIV>
<P class=MsoNormal style="BACKGROUND: #e4e4e4"><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">From:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'"> <A
title=tump@swnl.net href="mailto:tump@swnl.net"
target=_blank>Tump</A> <U></U><U></U></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">To:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'"> <A
title=re-wrenches@lists.re-wrenches.org
href="mailto:re-wrenches@lists.re-wrenches.org"
target=_blank>RE-wrenches</A> <U></U><U></U></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Sent:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">
Monday, March 16, 2015 5:39 AM<U></U><U></U></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Subject:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'"> Re:
[RE-wrenches] Outback quad stack X240 breaker
tripping<U></U><U></U></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><U></U><U></U> </P></DIV>
<P class=MsoNormal>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.
<U></U><U></U></P>
<DIV>
<P class=MsoNormal>You are more then happy to contact me off
list if you choose. contact info below. Tump<U></U><U></U></P>
<DIV>
<DIV>
<DIV>
<P class=MsoNormal>On Mar 15, 2015, at 5:04 PM, Jerry Shafer
wrote:<U></U><U></U></P></DIV>
<P class=MsoNormal><BR><BR><U></U><U></U></P>
<DIV>
<DIV>
<P class=MsoNormal> 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.<U></U><U></U></P></DIV>
<P class=MsoNormal>Jerry<U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal><U></U><U></U> </P>
<DIV>
<P class=MsoNormal>On Wed, Mar 11, 2015 at 11:59 AM, Chris
Worcester <<A href="mailto:chris@solarwindworks.com"
target=_blank>chris@solarwindworks.com</A>>
wrote:<U></U><U></U></P>
<DIV>
<DIV>
<P class=MsoNormal>Hi Kevin, <U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal>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. <U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal><U></U><U></U> </P></DIV>
<DIV>
<P class=MsoNormal><U></U><U></U> </P></DIV>
<P class=MsoNormal>Sincerely, <SPAN><SPAN
style="COLOR: #888888"> </SPAN></SPAN><SPAN><SPAN
style="COLOR: #888888"><U></U><U></U></SPAN></SPAN></P>
<DIV>
<P class=MsoNormal><SPAN style="COLOR: #888888">Chris
Worcester</SPAN><U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal><SPAN style="COLOR: #888888"><A
href="tel:530-448-9692" target=_blank>530-448-9692</A>
<U></U><U></U></SPAN></P>
<DIV>
<P class=MsoNormal><SPAN style="COLOR: #888888"> Sent from
my Galaxy S®III<U></U><U></U></SPAN></P></DIV></DIV>
<P class=MsoNormal
style="MARGIN-BOTTOM: 12pt"><U></U><U></U> </P>
<DIV>
<P class=MsoNormal>-------- Original message
--------<U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal>From: Kevin Pegg <U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal>Date:03/11/2015 1:19 PM (GMT-08:00)
<U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal>To: RE-wrenches <U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal>Subject: [RE-wrenches] Outback quad stack
X240 breaker tripping <U></U><U></U></P></DIV>
<DIV>
<P class=MsoNormal><U></U><U></U> </P></DIV>
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt">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>250-846-9888</A><BR><A
href="http://www.EnergyAlternatives.ca/"
target=_blank>Http://www.EnergyAlternatives.ca</A>
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