SW4024 with control problems [RE-wrenches]

[Matt Tritt]

<x-flowed>
Your free subscription is supported by today's sponsor:
-------------------------------------------------------------------
Get a Free Sirius Satellite Package, don't pass on this!
http://click.topica.com/caadHlCbz8Qcsbz9JC9a/ProductTestPanel
-------------------------------------------------------------------

Drake,

Wow; is this de ja vu, or what? I just got back from an off-grid install 
I put in a number of years ago with very similar symptoms. In this case, 
however, I think I've traced all the problems back to a 4/0 cable 
connection (-) that managed to loosen-up over about 4 years. It wasn't 
so difficult to find the problem, seeing as how the DC bonding block got 
hot enough to fry some of the insulation off a controller lead connected 
to the same block. =(:-0 !!

The report from the owners (who never seem to check anything until it 
breaks) was that: in auto mode the generator would run for hours, stop 
for about 15 minutes, then run for hours, ad nauseum. Even with the 
genny going full-tilt the bad connection prevented a full charge from 
ever being accomplished (for very long). I am not a big fan of the 
bonding block arrangement in the Trace DC box for several reasons, not 
the least of which is it's deep location - way to one side, which can be 
a hassle in some installations.

So, even if your problem is not the negative connection, I suggest 
re-torquing all the connections within the DC enclosure to original 
spec's as a preventative measure. But you probably already did that!

Matt T

Drake Chamberlin wrote:

> Your free subscription is supported by today's sponsor:
> -------------------------------------------------------------------
> Need Emergency Cash? Get Up To $500 Now! No Credit Checks, Easy & Fast 
> Approval Cash in you account Overnight!
> http://click.topica.com/caadHk3bz8QcsbadqCja/911PaydayAdvance
> -------------------------------------------------------------------
>
> Hi Wrenches,
>
> I'm working on an SW4024 that is being used in as a grid back up, that 
> exhibited two strange malfunctions while on the wall.
>
> 1)  It would take several seconds to come on after the grid was shut off.
>
> 2) Whenever the generator was in the AUTO mode, it would run the 
> generator.   OFF turned the generator off, but AUTO works the same as 
> ON.  The battery bank is full and the generator goes on even with very 
> small loads, so it doesn't appear to be a load start issue.
>
> After cold starting the inverter, it would work normally for a short 
> time, then revert to its strange behavior.
>
> Now the inverter is in the shop, but they can't find anything wrong 
> with it.  Does anyone have any idea what is going on?
>
> Thanks,
>
> Drake
>
> Your free subscription is supported by today's sponsor:
> -------------------------------------------------------------------
> Get up to $1500.00 Fast and Easy!
> No Credit Checks! No Paper Hassles! Nothing To Fax!
> Apply Online and We'll Contact You Within the Hour!
> http://click.topica.com/caadHk7bz8QcsbadqCjf/911PaydayAdvance
> -------------------------------------------------------------------
>
> - - - -
> To send a message: RE-wrenches at topica.com
>
> Archive of previous messages: 
> http://lists.topica.com/lists/RE-wrenches/read
>
> List rules & etiquette: www.mrsharkey.com/wrenches/etiquette.php
>
> Check out participant bios: www.mrsharkey.com/wrenches/
>
> Hosted by Home Power magazine
>
> Moderator: michael.welch at homepower.com
>
>

Your free subscription is supported by today's sponsor:
-------------------------------------------------------------------
Need a Laptop? Get a Sony Vaio Laptop Free!
http://click.topica.com/caadHlxbz8Qcsbz9JC9f/ProductTestPanel
-------------------------------------------------------------------

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://lists.topica.com/lists/RE-wrenches/read

List rules & etiquette: www.mrsharkey.com/wrenches/etiquette.php

Check out participant bios: www.mrsharkey.com/wrenches/

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com
--^----------------------------------------------------------------
This email was sent to: michael.welch at homepower.com

EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9.bWljaGFl
Or send an email to: RE-wrenches-unsubscribe at topica.com

For Topica's complete suite of email marketing solutions visit:
http://www.topica.com/?p=TEXFOOTER
--^----------------------------------------------------------------



</x-flowed>