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> 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> 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> 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> 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 >>>> >>>> List Address: RE-wrenches@lists.re-wrenches.org >>>> >>>> Change listserver email address & settings: >>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>>> >>>> There are two list archives for searching. When one doesn't work, try >>>> the other: >>>> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >>>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>>> >>>> List rules & etiquette: >>>> http://www.re-wrenches.org/etiquette.htm >>>> >>>> Check out or update participant bios: >>>> http://www.members.re-wrenches.org >>>> >>>> _______________________________________________ >>> List sponsored by Redwood Alliance >>> >>> Pay optional member dues here: http://re-wrenches.org >>> >>> List Address: RE-wrenches@lists.re-wrenches.org >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> There are two list archives for searching. When one doesn't work, try >>> the other: >>> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>> >>> List rules & etiquette: >>> http://www.re-wrenches.org/etiquette.htm >>> >>> Check out or update participant bios: >>> http://www.members.re-wrenches.org >>> >>> >> >> -- >> >> Michael Morningstar >> >> >> Morningstar Electric >> >> PO Box 1494 >> >> Mount Shasta, CA 96067 >> >> 530-921-0560 >> >> mjmornings...@gmail.com >> >> >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. When one doesn't work, try the >> other: >> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > >
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