[RE-wrenches] Sunny Island no Longer Supports TLs - How about New Series?
Ray
ray at solarray.com
Sat Mar 25 19:04:39 PDT 2017
Not to muddy the waters, but how does the SMA system deal with 690.12
Rapid Shutdown requirements in OG and GTB arrangements? 690.12 has been
killing battery based projects left and right here in Colorado.
Thanks,
R. Ray Walters
Chief Technical Officer, RemoteSolar.com
BS Mech Engineering, 1988
Former NABCEP Certified, 2004-2016
Licensed Master ELectrician, Colorado
303 505-8760
On 3/25/17 6:46 PM, Jeff Clearwater wrote:
> Hi Howie,
>
> So Jay found this from previous posts (below). So apparently the -40
> series will work in Off-grid mode (as long as you program the SBs
> separately to be in OG) but won't do the switching of modes necessary
> for grid-tie backup. I plan on a call to SMA tech support Monday
> morning to get to the bottom of what exactly is lost without the RS485
> comm. And to see if TLs are still going to work as the new SIs tech
> sheet shows they are not supported. why I have no idea but I intend
> to find out.
>
> hope that helps.
>
> Best,
>
> Jeff
>
>> Begin forwarded message:
>>
>> *From: *Drake <drake.chamberlin at redwoodalliance.org
>> <mailto:drake.chamberlin at redwoodalliance.org>>
>> *Subject: **Re: [RE-wrenches] SMA US 40 & AC coupling*
>> *Date: *March 13, 2017 at 10:23:56 AM PDT
>> *To: *RE-wrenches <re-wrenches at lists.re-wrenches.org
>> <mailto:re-wrenches at lists.re-wrenches.org>>
>> *Reply-To: *RE-wrenches <re-wrenches at lists.re-wrenches.org
>> <mailto:re-wrenches at lists.re-wrenches.org>>
>>
>> I talked with Tim at SMA today, and the new Sunny Boy inverters
>> will provide taper charging with the Sunny Islands even though no RS
>> 485 communication is available. The Sunny Boys need to be programmed
>> in the off grid mode, and the Sunny Islands will take care of the UL
>> 1741 requirements.
>>
>> The graph below shows the relation between frequency shift and %
>> power produced by the Sunny Boy inverters.
>> Emacs!
>>
>> Drake Chamberlin
>> /Athens Electric LLC
>> OH License 44810
>> CO License 3773
>> NABCEP Certified Solar PV
>> 740-448-7328
>> /http://athens-electric.com/
>> At 11:36 AM 3/10/2017, you wrote:
>> I just checked with SMA and they do not have an RS485 card for the
>> -40 inverters. What this means is that you can set them up to be
>> permanently in off grid mode where the SB will follow the frequency
>> shift of the SI, ok for an off grid system. But for grid tie with
>> backup, the SB will not communicate with the SI and will not change
>> the SB to off grid mode. It will still work like other generic AC
>> coupled systems where the frequency shift will cause the SB inverter
>> to drop off line, but as far as I know no throttling back will happen.
>>
>> Brad
>
>
> Howie Michaelson wrote:
>> I'm confused. Does this mean the -40 series are not compatible with
>> SI off grid mode? Or they don't adjust output due to frequency shift?
>> Or?
>>
>> Howie
>> Howie Michaelson
>> NABCEP Certified Solar PV Installer™
>>
>> Sun Catcher
>> Renewable Energy Systems Sales and Service
>> VT Solar Electric Incentive Partner
>> 802-272-0004
>>
>> On Mar 25, 2017 7:59 PM, "Tump" <tump at swnl.net
>> <mailto:tump at swnl.net>> wrote:
>>
>> Jeff the bad news is yer outa luck BUT they "had a work around"
>> that was discussed on the list a few weeks ago. I looked quickly
>> but didn’t see it posted. You were going to install a RS 485
>> card/ module that had the soft ware to make it work. I found this
>> out just as these “Newest latest n greatest inverters" were just
>> coming out, looked at the manual, and much to my disappointment I
>> had to send it back and educate my salesperson to this. Lucky for
>> me I was able to get the TL series. Ill keep on looking, if you
>> don’t have any luck I do have a contact at SMA…. at least he was
>> there 2 weeks ago, contact me off list. Tump
>>> On Mar 25, 2017, at 12:10 PM, Jeff Clearwater
>>> <jeffc at villagepowerdesign.com
>>> <mailto:jeffc at villagepowerdesign.com>> wrote:
>>>
>>> All,
>>>
>>> Can anyone confirm for me that the SUNNY BOY 3.0-US / 3.8-US /
>>> 5.0-US / 6.0-US / 7.0-US / 7.7-US series is or is not supported
>>> by the Sunny Island in off-grid AC coupling mode? The technical
>>> paper on the subject here
>>> http://files.sma.de/dl/7910/SB-OffGrid-TI-US-en-18.pdf
>>> <http://files.sma.de/dl/7910/SB-OffGrid-TI-US-en-18.pdf> does
>>> not list them but I'm hoping it's cause that paper is dated Feb '16.
>>>
>>> I sure hope they are because that paper shows they discontinued
>>> support the the SUNNY BOY 3000TL-US / 3800TL-US / 4000TL-US /
>>> 5000TL-US / 6000TL-US / 7000TL-US / 7700TL-US series! Why!??
>>>
>>> Hope you have good news for me!
>>>
>>> Best,
>>>
>>> Jeff
>>>
>>> --
>>> Jeff Clearwater
>>> Village Power Design
>>> Renewable Energy Design & Installation
>>> Ecovillage Design Consultant
>>>
>>> Licensed Solar Contractor in CA - C-46
>>> www.villagepowerdesign.com <http://www.villagepower.com/>
>>> 413-559-9763 <tel:%28413%29%20559-9763>
>>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>
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>>
>>> *Tump at swnl.net**www.SWNL.net*
>>> Solarwinds Northernlights *//*
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>>
>>
>>
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>
>
> --
> Jeff Clearwater
> Village Power Design
> Renewable Energy Design & Installation
> Ecovillage Design Consultant
>
> NABCEP™ Certified Solar PV Installer
> Licensed Solar Contractor in CA - C-46
> www.villagepowerdesign.com
> 413-559-9763
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>
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