Battery charging with XW series equipment [RE-wrenches]

[William Miller]

<x-flowed>

Colleagues:

We installed our first XW system recently and it has caused some questions 
and consternation.  The client is very technically inclined (he owns a 
small telephone company) and has graciously agreed to work with us to 
familiarize with the equipment.  Here is a list of question/concerns:

1.      The 24 IBE batteries we have do not appear to be receiving a full 
charge.  At-rest voltage caves quickly at sundown to 48 or less.  I have 
observed the two-stage charge cycle performed by the XW charge controllers 
and I wonder if this is really superior to three stage charging.  Comments?

2.      The charge routine performed by the XW inverter is also 
suspect.  Apparently there is no way to require a specific absorption 
duration.  According to tech support, the absorption timer is simply a 
maximum timer and that absorption ends when the charge tapers down to 2% of 
the battery AH value.  We see the generator auto start and then shut off in 
about an hour.  For a 1600 AH battery bank, this seem too short a time 
frame to really get a full charge.  Should we increase the absorption 
voltage?? Comments?

3.      The programmed variables for a number of the functions were 
blank.   For example, the generator voltage start numbers (for 24 hour, 2 
hour, etc) were not empty.  This puts a lot of pressure on the installer to 
insert parameters where one would usually find them already 
programmed.  The possibility is high that the installer might miss an 
important parameter and have to drive back just for programming.  I thought 
that the default parameters for the SW were excellent and I encourage 
Xantrex to pre-program with these values.  It may be also that I have older 
software and the new software has these values?

4.      What is the difference between newer version of the software and 
the older versions?

Your replies are much appreciated.



-- _________________________________
William Miller
Miller Power and Communications
Voice :805-438-5600     Fax: 805-438-4607
email: wrmiller at mpandc.com
http://mpandc.com
License No. C-10-773985

--
[Non-text portions of this message have been removed]


- - - -
Hosted by Home Power magazine

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

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

List rules & how to change your email address: www.mrsharkey.com/wrenches/etiquette.php

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

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

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>