Eric,
Part of the XW/SW confusion is that there has never been an
SW6048. There were only the SW4048 and SW5548. The XW is available
as XW4048 and XW6048. At this point it's not clear which you're
dealing with here, given that Eric appears to have talked with
your customer.
Allan
Allan Sindelar
al...@positiveenergysolar.com
NABCEP Certified PV
Installation Professional
NABCEP Certified Technical Sales Professional
New Mexico EE98J Journeyman Electrician
Founder and Chief Technology Officer
Positive Energy, Inc., a Certified B CorporationTM
3209 Richards Lane
Santa Fe, New Mexico 87507
505 424-1112 office 780-2738 cell
www.positiveenergysolar.com
On 8/7/2013 3:08 PM, SunHarvest wrote:
Sounds like you talked to the
right guy, that's his info...except that he has, according to
what he told me, an SW not an XW. I'm assuming he's maybe at
50% capacity on his original 1260Ah bank based on everything
he told me this morning. He did say that his bank will last
him through the night and that he has some pretty hefty air
conditioning loads. He also said he had equalized in the past
but not in the last 18 months. I'm just not convinced that his
batteries are shot. But all this battery talk may be beside
the point if he's not experiencing the same on/off cycling
problem when he manually starts the genny, right? That is,
assuming the disco settings remain in effect regardless of
start mechanism. Thanks for indulging me tocayo.
Eric
SunHarvest
001.530.798.3738 (Cell)
----- Original Message -----
Sent: Wednesday, August 07,
2013 12:54 PM
Subject: Re: [RE-wrenches]
SW AGS
Hi Eric,
Sounded like bad batteries to
me also (I think he called in this AM). He has (2) XW6048
units that are
capable of 200ADC between them,
and he also has 1260Ah of flooded capacity. DC Start V is set
for 46.5V, so if we assume he was close to 50%
discharge (depending on load),
it should take almost 2 hours to reach the bulk voltage (80%
replaced). His batteries were ramping up to bulk
in just a couple of minutes,
meaning the batteries were not absorbing the charge. I have
heard varying opinions on the symptoms of sulfation,
but it does sound like a
battery issue (5 yrs old). He was advised to equalize to try
and recover them (he has never done this), or replace them.
Rgds,
_____________________________________________________________________________________
Eric Bentsen | Schneider Electric | Solar Business | UNITED STATES
| Technical Support Representative
Phone: +(650) 351-8237 ext. 001# |
Email: eric.bent...@schneider-electric.com | Site:
www.schneider-electric.com/solar | Address: 250 South Vasco
Rd., Livermore, CA 94551
*** Please consider the environment before printing this
e-mail
I read through the archives on the
XW AGS thread but have a query on behalf of a customer with an
SW AGS issue. I'm heading out to the remote site tomorrow and
would like, if possible, to show up knowing what I might be up
against.
The customer recently replaced his
AGS for his two SW 6048s and then upgraded his firmware a week
later. He reported that his problem with the AGS began after
firmware upgrade. Here's the particular issue:
AGS will try to start the 15.8kW
Multi-Quip genny due to low battery voltage (event 306 DCV
start). After about 5 minutes the AGS will stop the genny due
to battery absorption level reached (event 313 ABS stop). The
AGS will go through this event 306/313 cycle on and off until
the homeowner shuts down the AGS. To me this sounds like bad
batteries. But, the homeowner says this cycling does not occur
when he manually starts the generator. This doesn't sound like
a complicated problem but so far I'm unfamiliar with the SW
AGS. So, I would greatly appreciate any insight you guys can
offer me.
Thanks!!
Eric
SunHarvest
001.530.798.3738 (Cell)
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