[RE-wrenches] Sunny Island Two-Wire Start

[Ryan]

Jeff
First yes a 2 wire signal wire from the Sunny Island to the Genny, 
Second if this is off grid only the Sunny Boy will be programmed with a 
SMA service cable to be "Off Grid Only" and then it does not need the 
RS485 com cable between it and the Sunny Island. The RS485 cable is only 
needed when you want the Sunny Boy to switch between Off Grid and Grid tie.

Ryan

On 6/22/2013 10:26 PM, Jeff Clearwater wrote:
> Hi Esteemed Wrenchies,
>
> For a totally off-grid AC Coupled Sunny Island system to control an 
> off-grid Kohler two-wire start generator  I assume:
>
> 1) All I need to bring is control wire besides the genny and Sunny Island.
>
> 2) No external relays needed - all built in to the Sunny Island and genny.
>
> 3)  If no grid-tie (only generator)  then no need to program DIGIN 
> signal as per SMA's tech note on Gen and grid systems?
>
> Am I missing something here?
>
> Thanks!
>
> Jeff
> -- 
>
> Jeff Clearwater
> Ecovillage Network of the Americas
> The Visionary Commons
> Ecovillage Design Consultant
> www.visionarycommons.org <http://www.visionarycommons.org>
> skype - jclearwater
> cell - 413-559-9763
>
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> <http://www.youtube.com/user/clrwater>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> -- 
> Jeff Clearwater
> Village Power Design
> Renewable Energy Design & Installation
> Ecovillage Design Consultant
>
> NABCEP^(TM) Certified Solar PV Installer
> Licensed Solar Contractor in CA - C-46
> www.villagepower.com
> 413-559-9763
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>
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