[RE-wrenches] Magnum problem

[Mac Lewis]

Have you checked those little pop out breakers up near the wiring
compartment?

Have you tried "force bulk"?



On Tue, Oct 31, 2023, 10:56 AM Dan Fink via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> I have had issues before with Magnum inverter/chargers not accepting AC
> input from certain generators. In one case, it would not charge from a
> Honda 3kw cube, but worked fine with camp’s Honda 2kw. Magnum said it was a
> Honda problem, Honda said it was a Magnum problem. We ended up just
> rearranging generators and inverters between camps. Weird, we never
> detected anything odd in voltage or frequency from any of the generators.
>
> Dan Fink
> Owner, Buckville Energy Consulting LLC
> IREC Certified Instructor for PV and Small Wind Installation
> NABCEP Certified PV System Inspector
> NABCEP PV Associate
> danbob88 at gmail.com
> 970-672-4342
>
>
>
>
> On Tue, Oct 31, 2023 at 11:39 AM Ron Young via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>> Hello Wrenches,
>>
>> I am completely stumped. I built a Magnum 4448 panel for a client and it
>> was installed by an electrician. It was thoroughly tested before going out
>> the door on all functions and pre-programmed for the off-grid site.
>> Electrician just had to hang it on the wall and make 4 connections, AC IN,
>> AC OUT, BATTERY, PV. Somehow the system wouldn’t go into charge mode. The
>> site is a 3 hour trip each way. The electrician was baffled, he had
>> experience installing solar but very limited so I went to the site to see
>> what the problem was. After spending a day checking out the inverter with
>> two different generators, checking all the connections, AC at the inputs at
>> the inverter and at the outputs on the breakers, and even removed the cover
>> from the inverter to make sure some connections had not shaken loose inside
>> the box on the long bumpy road into the property. Everything checked out.
>> So assuming the AC board in the inverter was faulty I ordered a new unit to
>> replace and that has now been done. SAME PROBLEM! I’m wondering now if it’s
>> possible that the Magnum remote monitor could be the problem. It functions
>> properly on every setting but is it possible there is an internal fault?
>> Could it prevent the automatic charge cycle from initiating? Seems unlikely
>> to me because the inverter can go into charge mode even without the
>> monitor. I also tried replacing the connection cable between the monitor
>> and inverter but no luck.
>>
>> The generators are both small, one a Honda 2kW and the other a Champion
>> 3.8kW. Neither is ideal but I have had no issues with these types of
>> generators in the past and the client has ordered a larger 10kW unit but we
>> don’t have it yet to test. Generators have been run with Eco Mode off.
>> Output to the house on bypass is consistent and without problem.
>>
>> Any suggestions - this is just confounding.
>>
>> Ron
>>
>>
>> earthRight Products - Solareagle.com
>>
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