SW firmware REV's [RE-wrenches]

[Nick Nicholas]

Hi Nick Houser:
  On October 24, in a posting called "RE: SW Compatibility" I described what
problems the SW 4024 was having.  I have pasted the text below.

"Hello William
    I spent quite a bit of time last week trouble shooting a stack of
SW4024s that I installed in an off grid cabin.  The first SW was a 4.1 ( not
GTI enabled), and the second, installed later, was a 4.2 (GTI enabled.)  The
4.2 was responsible for starting the Kohler 10RY Generator.  Recently, every
morning that the generator was started for automatic battery charging, the
inverters would turn off after approximately two hours, the SWs would freeze
up, and the generator would also turn off.  When I first approached Xantrex
about the issue, 4 weeks ago, I was told that the inverters where not
compatible.  After the problem continued, I re-approached Xantrex and was
told that the inverters are compatible.  Ken Ripley (x703), at Xantrex,
assured me that the SWs were compatible.
    First, we went to the site and upgraded the software.  Then, after the
problems continued, Ante asked us to go to the site (1 hr away) and flip the
generator's Hot leg output wires between the two SWs and also that we join
the SWs battery terminals with 4/0 batt. cable.   We did it, and then we
forced the generator to start automatically by raising the LBCO.  This
resulted in another power outage as the generator turned off, 15 minutes
later.  When the power turned off, the inverters froze up.
    When the customer tapped on the 4.2 inverter housing, the inverters
un-froze, and he was able to restart them.
    After this, Xantrex authorized the replacement of the 4.2 SW inverter.
    We will be replacing the inverter next Wednesday, and will find out if
all the bugs have been worked out."

Nick Nicholas
Alternative Power Systems
www.alternativepowersystems.com
aps at sbcglobal.net
135 Colfax Ave.
Grass Valley, CA 95945
(530) 274-0588 phone
(530) 274-0589 fax
----- Original Message -----
From: "Nick Houser" <offgrid at prcn.org>
To: <RE-wrenches at topica.com>
Sent: Sunday, October 27, 2002 1:03 PM
Subject: Re: SW firmware REV's [RE-wrenches]

(530) 274-0589 fax
----- Original Message -----
From: "Nick Houser" <offgrid at prcn.org>
To: <RE-wrenches at topica.com>
Sent: Sunday, October 27, 2002 1:03 PM
Subject: Re: SW firmware REV's [RE-wrenches]


> Nick-  Could you please be more specific about the gen control problems
your
> customer is still having (after the software upgrade)
> I have upgraded -a "GTI enabled"  SW unit that I have on hand to install
> this Spring, and I would really like to know what "problems" to look out
> for.   Thanks--------Nick Houser  Off Grid Power---- Original
Message -----
> From: "Nick Nicholas" <APS at SBCGLOBAL.NET>
> To: <RE-wrenches at topica.com>
> Sent: Sunday, October 27, 2002 12:03 PM
> Subject: Re: SW firmware REV's [RE-wrenches]
>
>
> > Hi John at CV Solar:
> >     The new Rev 4.2 SWs need the newest software upgrade if they are
> having
> > problems with generator starting and stopping.  This software upgrade is
> > also called Rev 4.2 software.  However, It did not solve all of my
> customers
> > problems related to automatic generator controlling.  I would recommend
> > calling Xantrex.  They will supply the 4.2 software revision for free.
> >
> > Nick
> > Alternative Power Systems
> > www.alternativepowersystems.com
> > aps at sbcglobal.net
> > 135 Colfax Ave.
> > Grass Valley, CA 95945
> > (530) 274-0588 phone
> > (530) 274-0589 fax
> > ----- Original Message -----
> > From: "John Blittersdorf, Cent. VT Solar & Wind" <cvsolar at aol.com>
> > To: <RE-wrenches at topica.com>
> > Sent: Sunday, October 27, 2002 7:51 AM
> > Subject: SW firmware REV's [RE-wrenches]
> >
> >
> > > Wrenches,
> > >    I have been having problems with Rev 4.2 software on 2  off-grid
> SW's.
> > > I have a set of program chips REV 4.01 I purchased a while back to
> upgrade
> > my
> > > old SW4024 manufactured in 1995.  Does anyone know if these chips are
> the
> > > same as the 4.01 chips delivered in the more recent models delivered 2
> > years
> > > ago?  If they are the same, I can get one customer off my back with a
> > quick
> > > chip change using these that I already have on hand.
> > >
> > > John
> > > CVSolar
> > >
> > > --
> > > [Non-text portions of this message have been removed]
> > >
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