[RE-wrenches] Outback Charging Method

[Drake Chamberlin]

My system always drops the slave inverter, mounted at the bottom, 
when the charge backs off.  It is a FW 500 setup.

At 10:09 PM 6/21/2010, you wrote:
>The inverters are mounted in a vertical orientation.
>
>Mark Frye
>Berkeley Solar Electric Systems
>303 Redbud Way
>Nevada City,  CA 95959
>(530) 401-8024
><http://www.berkeleysolar.com/>www.berkeleysolar.com
>
>
>
>----------
>From: re-wrenches-bounces at lists.re-wrenches.org 
>[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of jay peltz
>Sent: Monday, June 21, 2010 5:31 PM
>To: RE-wrenches
>Subject: Re: [RE-wrenches] Outback Charging Method
>
>Hi Mark,
>
>In stacked systems I've usually seen the inverters not charging the 
>same amount.
>Seems like they should share the charge as well as load, but doesn't 
>seem to be the case.
>
>Was the unloaded one above the other?
>
>jay
>
>peltz power
>On Jun 21, 2010, at 2:39 PM, Mark Frye wrote:
>
>>Thanks Jay,
>>
>>This came up because I was looking at the summary on the Mate 
>>during charging and it showed that one of the stacked slaves had 
>>0.0kw charge power. Strangely enough, the ac charge current showed 
>>16 AAC. This is how I got on the subject with tech support. They 
>>said that the 0.0 kw charge power was perfectly normal because the 
>>charge controller was trying to reduce the charge current by drop 
>>operation of one of the stacked inverters.
>>
>>I always figured that the slaved stack would rise and fall in 
>>unison to meet the current demand.
>>
>>I do have them running at variuos "power save" levels so I suppose 
>>it is possible that entire chargers are being dropped, but I 
>>thought that was only for managing the on/search mode on larger stacks.
>>
>>I am guessing that this is more a matter of reporting errors in the mate.
>>
>>Mark Frye
>>Berkeley Solar Electric Systems
>>303 Redbud Way
>>Nevada City,  CA 95959
>>(530) 401-8024
>><http://www.berkeleysolar.com/>www.berkeleysolar.com
>>
>>
>>
>>----------
>
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Drake Chamberlin
Athens Electric
OH License 44810
CO License 3773
NABCEP TM  Certified PV Installer
Office - 740-448-7328
Mobile - 740-856-9648  
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