[RE-wrenches] Xantrex XW 6048A unregulated during charging

Thu May 4 15:05:05 PDT 2017

Its a pretty small battery bank what do you have the charge rate set to 10%?100%?  how large is your generator? I will usually start with a lower set point, w 3 inverters charging at even 15% thats quite a bit of charging for that BB. Make sure your AC input priority is set for AC2 and the Max current is what your get can reasonably can handle. but if you are seeing brief disconnects then these settings should be checked. Is there a load unknown to you after the genre connects say additional loads on the generator feeding somewhere else?
I would not swap the AC1 as the settings while are adjustable, there are some differences in AC1 & AC2.
T
> On May 4, 2017, at 4:57 PM, Dave Angelini Offgrid Solar <offgridsolar at sti.net> wrote:
> 
> On Schneider gear if you program the bat capacity to zero, the unit will
> run the full absorb time. If you had a 1000 AH bank programmed, at 2% of
> the 1000 ah or 20 amps into the battery the unit will go to float. I do
> not see this as your problem though!
> --Dave
> 
>> Hello Kevin,
>> 
>> I have actual battery capacity of 670 ahâ€™s programmed in.  Do you have
>> any theories on why 0 ahâ€™s was helpful??
>> 
>> Swapping AC1 and AC2 is a really good idea.  The only problem is since I
>> put in a micro SD card to the Combox, to do extended logging,  I have not
>> been able to reproduce the problem that was easy to reproduce a month ago.
>> Only thing that has changed is the weather has warmed up.
>> 
>> Schneider tech support has been helpful with suggestions,  but they will
>> not pay to replace the battery bankâ€¦..
>> 
>> Jason
>> 
>>> On May 4, 2017, at 9:42 AM, Kevin Pegg <kpegg at energyalternatives.ca>
>>> wrote:
>>> 
>>> This is a good one. What battery capacity have you programmed into the
>>> XW system? We have had a few issues, though not this one specifically,
>>> but similar head-scratchers that were resolved by setting the battery
>>> capacity to 0 Ah.
>>> 
>>> Have you tried swapping AC1 and AC2 and does the problem follow the
>>> source or the input?
>>> 
>>> I recently had an odd issue with generator automation on AC1 on an XW+
>>> and Schneider tech support was helpful in replicating the issue in their
>>> lab and issuing a fix. Might be worth engaging them if you haven't
>>> already.
>>> 
>>> Kevin
>>> 
>>> -----Original Message-----
>>> From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On
>>> Behalf Of Jason Lerner
>>> Sent: May-03-17 3:18 PM
>>> To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
>>> Subject: [RE-wrenches] Xantrex XW 6048A unregulated during charging
>>> 
>>> Hello All,
>>> 
>>> Iâ€™m working on a system with 3 Xantrex XW 6048â€™s that has grid on
>>> AC1 and a 20 kw generator on AC2.  When charging from grid it regulates
>>> during an absorption charge at 58.2 where it should.  When charging from
>>> AC 2 - generator, the battery Voltage rises above 62 VDC,  but not every
>>> single time.  All the settings are correct, EQ is turned off, and if it
>>> accidentally got turned on is set at the same Voltage as the absorption
>>> setting.  Customer has a brand new 33 kWh AGM battery bank,  that I
>>> would rather not fry.  This is a battery backup system with no PV.
>>> 
>>> I have checked all the temperature sensors (they seem good) and tried
>>> charging with them plugged in,  and with them unplugged and it doesnâ€™t
>>> seem to change the situation.
>>> 
>>> Has anybody else seen this happen before?  Any suggestions?
>>> 
>>> Thanks very much,
>>> 
>>> Jason Lerner
>>> Waldron Power and Light Co.
>>> (888) 927-2526
>>> 
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> 
> 
> Dave Angelini Offgrid Solar
> "we go where powerlines don't"
> http://members.sti.net/offgridsolar/
> e-mail  offgridsolar at sti.net
> text 209 813 0060
> 
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