As I’ve been researching this, the Atkinson GSCM can do this when coupled to an external relay.
If I understand correctly. Jay The warm up ( on delay ) is 0- 60 seconds, the cool down ( off delay) is 0-120 seconds https://thesolarstore.com/manuals/GSCM.pdf > On Sep 16, 2023, at 9:20 AM, Chris Sparadeo via RE-wrenches > <re-wrenches@lists.re-wrenches.org> wrote: > > Michael, > > Sol Ark does not have an explicit or adjustable cool down setting, but it has > fixed the problem of dropping the AGS signal under full load. > > dus...@sol-ark.com <mailto:dus...@sol-ark.com> can you confirm this? > > On Fri, Sep 15, 2023 at 5:41 PM Michael Morningstar via RE-wrenches > <re-wrenches@lists.re-wrenches.org > <mailto:re-wrenches@lists.re-wrenches.org>> wrote: > Chris, > Just so that I understand correctly, are you saying that new firmware allows > for generator cool down? > > > On Fri, Sep 15, 2023 at 2:33 PM Jason Szumlanski via RE-wrenches > <re-wrenches@lists.re-wrenches.org > <mailto:re-wrenches@lists.re-wrenches.org>> wrote: > I saw that setting. I didn't have a chance to look it up today, but I'm going > back to the site tomorrow. I'm going to play with that and try to get rid of > the ancillary equipment that is no longer necessary. Thanks for the tip. > > On Fri, Sep 15, 2023, 5:26 PM Chris Sparadeo <sparadeo.ch...@gmail.com > <mailto:sparadeo.ch...@gmail.com>> wrote: > In an off-grid scenario I would suggest utilizing the grid connect timer as a > Gen warm up. I typically set this qualification time to 30 or 60 seconds. Sol > Ark fixed the problem with dropping the 2 wire start under full load, so if > this is an issue for you, I would update the firmware. > > On Fri, Sep 15, 2023 at 4:56 PM Jason Szumlanski via RE-wrenches > <re-wrenches@lists.re-wrenches.org > <mailto:re-wrenches@lists.re-wrenches.org>> wrote: > I just replaced two Sunny Islands and one Sunny Boy that I did not install > with a single Sol-Ark 15k today. The generator installer (not me) had already > installed a custom but simple time delay relay. I didn't get into the logic > of it, but from what I understand the generator already had a cool-down > period when remote start signal is lost, but no warm up delay. > > Major deficiency? I think that is actually pretty accurate and Sol-Ark should > fix it, but it isn't too hard to take care of it another way. > > I wonder if this has something with the distinction of accepting generator > input on the grid input as well. You would not want a grid delay if it were a > utility. Still, they should be able to build in that logic I would think. > > Jason Szumlanski > Principal Solar Designer | Florida Solar Design Group > NABCEP Certified Solar Professional (PVIP) > Florida State Certified Solar Contractor CVC56956 > > > > On Fri, Sep 15, 2023 at 8:28 AM Michael Morningstar via RE-wrenches > <re-wrenches@lists.re-wrenches.org > <mailto:re-wrenches@lists.re-wrenches.org>> wrote: > We learned of this major deficiency after an eight unit install. No cool down > is disastrous to modern diesels. Our work around was installing a 400amp > contactor and macromatic programmable relay. > > On Thu, Sep 14, 2023 at 10:05 PM Jerry Shafer via RE-wrenches > <re-wrenches@lists.re-wrenches.org > <mailto:re-wrenches@lists.re-wrenches.org>> wrote: > Jay, wrenches > ASCO makes multiple ATS controls that can manage delays latching up and for > cool down. Most of the gensets have are programmed cool down after relay > opens so its not an issue. Generally on start up the genny connects as soon > as it's voltage and freq are within range. > fun times > > > > On Thu, Sep 14, 2023, 2:26 PM jay via RE-wrenches > <re-wrenches@lists.re-wrenches.org > <mailto:re-wrenches@lists.re-wrenches.org>> wrote: > Hi All, > > I have a client with a sol ark and it doesn’t have warm up or cool down, kind > of amazing companies are going backwards in their tech. > > > Has anyone come up with external fix for this? > > I am guessing the internal relay on the sol ark switches closed when it sees > the correct volts/hz and opens the sol ark relay when it sends the off signal. > > If thats correct I can pretty easily use a delay relay on the off cycle > assuming the on signal has a time window to allow for this delay in sending > power to the inverter. > > The on delay I don’t see anyway unless I use a contactor with on delay relay. > > Maybe there is a off the shelf generator transfer switch that has this built > in? > > Thanks in advance > > Jay > > > > > > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > <http://re-wrenches.org/> > > List Address: RE-wrenches@lists.re-wrenches.org > <mailto:RE-wrenches@lists.re-wrenches.org> > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> > > There are two list archives for searching. 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When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > <https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/> > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org> > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > <http://www.re-wrenches.org/etiquette.htm> > > Check out or update participant bios: > http://www.members.re-wrenches.org <http://www.members.re-wrenches.org/> > > > > -- > > Michael Morningstar > > Morningstar Electric > PO Box 1494 > Mount Shasta, CA 96067 > 530-921-0560 > mjmornings...@gmail.com <mailto:mjmornings...@gmail.com> > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > <http://re-wrenches.org/> > > List Address: RE-wrenches@lists.re-wrenches.org > <mailto:RE-wrenches@lists.re-wrenches.org> > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> > > There are two list archives for searching. 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