[RE-wrenches] SMA Rapid Shutdown and Secure Power Supply

Thu Apr 28 12:41:54 EDT 2022

Chalk it up as another reason Rapid Shutdown is a bummer.

Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049

On 4/28/2022 9:11 AM, Harry Mahon via RE-wrenches wrote:
>
> Dave – Unfortunately the SPS feature is not “back” fully.  Choosing 
> “yes” during commissioning for the SPS feature allows for it to work 
> (with switch and outlet installed) but ONLY for the same solar day as 
> an outage occurs.
>
> When the Sunny Boy goes to sleep, the sunspec transmitter will stop 
> and the array will be in shutdown the next day.
>
> Apologies for any confusion, as this is not the “same” SPS that we 
> have been talking about since 2013….
>
> Please also note that choosing “yes” for the SPS feature during 
> commissioning means the DC disconnect must be the Rapid Shutdown 
> initiator, as the SunSpec signal must be disconnected from the array 
> when the grid fails to trigger shutdown.  If the AC breaker or other 
> AC disconnect is to be used as the RSI, “no” should be chosen for that 
> second menu choice after “Sunspec” is chosen for shutdown method on 
> tab 4 of the Install Assistant.
>
> It is unlikely that this generation of Sunny Boy will improve the SPS 
> situation, but SMA is working to fully reintroduce the SPS feature 
> with the next gen Sunny Boy.  Stay tuned…
>
> Best regards –
>
> Mike
>
>
> Michael Mahon
> Senior Technical Trainer, Solar Academy
> *SMA America*
>
> 3925 Atherton Rd
>
> Rocklin, CA 95765
> Mobile:   +1 916 918 9412_
> www.SMA-America.com 
> <https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.sma-america.com%2F&data=04%7C01%7CMichael.Mahon%40sma-america.com%7C7c37bb11c19143be244508d8c4708123%7Ca059b96c28294d1188374cc1ff84735d%7C0%7C0%7C637475334767665428%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Y%2FbXqYrd%2FX9hYC3%2BKsO%2Fn15XWX%2BoatBsL0IwlBOMjBA%3D&reserved=0>_
>
> Solar Academy website 
> <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsolaracademy.sma.de%2Fen.html&data=04%7C01%7CMichael.Mahon%40sma-america.com%7C7c37bb11c19143be244508d8c4708123%7Ca059b96c28294d1188374cc1ff84735d%7C0%7C0%7C637475334767675424%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=rEzoRJ8HjvBTPJKWI9zqi7e0VkiuRyd9FQalgtOLrdI%3D&reserved=0>
>
> Upcoming SMA America Solar Academy webinars: English 
> <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsolaracademy.sma.de%2Fen%2Fcourses.html%3Ffilter%255b1%255d%3DEnglish%26filter%255b2%255d%3DUnited%2520States&data=04%7C01%7CMichael.Mahon%40sma-america.com%7C7c37bb11c19143be244508d8c4708123%7Ca059b96c28294d1188374cc1ff84735d%7C0%7C0%7C637475334767685417%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=qwU%2FexGKNX4XJrvnBi6D5ijuK0qarJyghtBVWKQH2iE%3D&reserved=0> 
> and Spanish 
> <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsolaracademy.sma.de%2Fen%2Fcourses.html%3Ffilter%255b1%255d%3DSpanish%26filter%255b2%255d%3DUnited%2520States&data=04%7C01%7CMichael.Mahon%40sma-america.com%7C7c37bb11c19143be244508d8c4708123%7Ca059b96c28294d1188374cc1ff84735d%7C0%7C0%7C637475334767685417%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=kjV6E58mxunLvJr2%2BTPS6fSd%2BQlPZm8WqQIbtIeGOGI%3D&reserved=0>
>
> <https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.smainverted.com%2F&data=04%7C01%7CMichael.Mahon%40sma-america.com%7C90309a1470fd4699686008d9514294c8%7Ca059b96c28294d1188374cc1ff84735d%7C0%7C0%7C637630168696828295%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=%2BX8GAkfFNXxAxM565oOXOcNt3DnrrE7RzPccsQM2pzs%3D&reserved=0> 
> Linkedin Logo 
> <https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.linkedin.com%2Fcompany%2F364675&data=04%7C01%7CMichael.Mahon%40sma-america.com%7C90309a1470fd4699686008d9514294c8%7Ca059b96c28294d1188374cc1ff84735d%7C0%7C0%7C637630168696838290%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ywOykswEt%2FvRYn7N7JQ5510g0r7Avp%2FKlBVxcpy9NlY%3D&reserved=0> 
> <https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.youtube.com%2Fplaylist%3Flist%3DPL840A5336CAC32332&data=04%7C01%7CMichael.Mahon%40sma-america.com%7C90309a1470fd4699686008d9514294c8%7Ca059b96c28294d1188374cc1ff84735d%7C0%7C0%7C637630168696848287%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=z2mRFQr9f4oVyMhg0Bh02ooRf6UwOH3HET%2FczH2Upko%3D&reserved=0> 
>
>
> Graphical user interface, text, website Description automatically 
> generated 
> <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.sma-america.com%2Fshadefix.html&data=04%7C01%7CMichael.Mahon%40sma-america.com%7C6a5e9a55c13f4be16cda08d9e6643a9a%7Ca059b96c28294d1188374cc1ff84735d%7C0%7C0%7C637794140412323660%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=xiZdVY8duMb8z87LYBOpuMluD%2FHLrHDGMNXEtWT5QNk%3D&reserved=0>
>
> This email and any attachments thereto may contain SMA America, LLC 
> confidential, privileged and private material for the sole use of the 
> intended recipient. Any review, copying, or distribution of this email 
> (or any attachments thereto) by others is strictly prohibited. If you 
> are not the intended recipient, please contact the sender immediately 
> and permanently delete the original and any copies of this email and 
> any attachments thereto. Thank you.
>
> *From:* RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> *On 
> Behalf Of *Dave Tedeyan via RE-wrenches
> *Sent:* Wednesday, April 27, 2022 10:08 AM
> *To:* RE-wrenches <re-wrenches at lists.re-wrenches.org>
> *Cc:* Dave Tedeyan <dave at sungineersolar.com>
> *Subject:* [RE-wrenches] SMA Rapid Shutdown and Secure Power Supply
>
> Hi All,
>
> The last SMA-41 inverter I commissioned, had the option for SunSpec 
> rapid shutdown with Secure Power Supply. I just talked to a level one 
> tech who was not particularly familiar, but told me that with a 
> sunspec rapid shutdown device like the JMS-F, you can still use the 
> Secure Power Supply as if there was no rapid shutdown. I had stopped 
> installing the SPS on rooftop systems, because if losing grid power 
> initiates rapid shutdown, then you clearly do not have the power to 
> run a SPS. But it sounds like maybe the inverter has the smarts to 
> wake the solar back up once you flip the switch to activate the SPS. 
> Can anyone here verify this? Have you done this, and does it work as 
> expected with no extra hardware needed?
>
> Cheers,
>
> Dave
>
> -- 
>
> Logo 
> <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.sungineersolar.com%2F&data=05%7C01%7Cmichael.mahon%40sma-america.com%7C577c331425984a024c5408da286833f3%7Ca059b96c28294d1188374cc1ff84735d%7C0%7C1%7C637866725271115343%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7C&sdata=oiFM0QROF07HaZENjW%2BGUVdF6m8o1%2BnQ2Aa%2F1rxmVyo%3D&reserved=0>
>
> 	
>
> *Dave Tedeyan, P.E.
> Owner | Sungineer Solar*
>
> *p: *he | him | his*
> a: *1653 Slaterville Rd.| Ithaca, NY 14850
> *w:* www.sungineersolar.com 
> <https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.sungineersolar.com%2F&data=05%7C01%7Cmichael.mahon%40sma-america.com%7C577c331425984a024c5408da286833f3%7Ca059b96c28294d1188374cc1ff84735d%7C0%7C1%7C637866725271115343%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7C&sdata=YZNvqxQmoUs4AKKOBGhLlgrPcrhmZTqItwa81TsZhB0%3D&reserved=0>
> *c:* (607) 288-2898
>
>
>
> _______________________________________________
> L

-- 
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20220428/8defc239/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 717 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20220428/8defc239/attachment.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image002.jpg
Type: image/jpeg
Size: 731 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20220428/8defc239/attachment-0001.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image003.jpg
Type: image/jpeg
Size: 480 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20220428/8defc239/attachment-0002.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image004.jpg
Type: image/jpeg
Size: 19823 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20220428/8defc239/attachment-0003.jpg>