[RE-wrenches] Magnum problem

[Jerry Shafer]

Wrenches Ron
First l would think tech support already asked you this but.
I have seen this with outback,
What is the incoming voltage and freq, the Honda should be fine but the
other hard to say.  Frequency is very important to be right otherwise the
inverter will sit and wait, voltage not as much. Your inverter is a 240 vac
right, are the gennys also?
You might want to make sure its in Gen input not grid input, gen is wider.
With your little gennys it might latch up and disconnect quickly due to
either going out of range.
With gennys always use a pf of .8 and go down from there so a 3 k genny
charging should be around 1200 watts.
Funtimes

On Tue, Oct 31, 2023, 9:38 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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