[RE-wrenches] sol ark AGS question

[Chris Sparadeo]

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 at 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 at 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 at 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 at 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
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
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>>
>> --
>>
>> Michael Morningstar
>>
>>
>> Morningstar Electric
>>
>> PO Box 1494
>>
>> Mount Shasta, CA 96067
>>
>> 530-921-0560
>>
>> mjmorningstar at gmail.com
>>
>>
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