<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"></div><div dir="ltr">Hi Jeremy</div><div dir="ltr"><br></div><div dir="ltr">There are two issues I think. </div><div dir="ltr"><br></div><div dir="ltr">1 is that the inverter won’t connect. </div><div dir="ltr">And I don’t have an answer why the inverter won’t in sell mode but will in gen mode. Maybe the generator is slightly out of the more narrow window for grid. I presume you’ve checked hz and volts and they are in spec for grid? I know sometimes the frequency control can be slightly variable without a load. I’ve had success in the past getting inverters to connect to a generator with putting some dumb loads on it. Like incandescent lights or small heater. </div><div dir="ltr"><br></div><div dir="ltr">2. Maybe it’s a good thing it won’t because if it did connect wouldn’t it be possible for the inverter to try to sell to the generator? If you didn’t have to change grid to Gen?</div><div dir="ltr"><br></div><div dir="ltr">Jay</div><div dir="ltr"><br><blockquote type="cite">On Oct 23, 2024, at 8:47 PM, Jeremy Rodriguez via RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
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Wrenches, </div>
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We have a client that has brought utility power in and we now have the system hooked up to the utility.</div>
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In setting the system up, I've experienced that the inverter will sell and function fine with all the settings set up as<b> Grid Tied</b> mode, but it does not play nice when the grid is gone , and the Generator is brought in as the AC source.</div>
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We have installed an external transfer switch to switch the inverters' AC input, from either the utility or the existing backup generator ( if the grid fails), automatically. </div>
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The manual states that the inverter's two input selections can be programmed for seperate input modes, via the<b> Input</b>
<b>Type</b> menu. Ive not been able to get this accomplished. </div>
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When simulating a grid outage, thus changing the AC input to the inverter being from the Generator, the inverter will not synch to the AC power to charge the batteries. </div>
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The only way that I can get the inverter to synch, is to switch the input mode to
<b>GEN</b> from <b>GRID.</b></div>
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This is not ideal since the client would need to be present to make the button push, even though the generator will be started automatically if the grid were to go down (hopefully) , just as it did before.</div>
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With no way to contact Outback , can someone advise how to properly program the inverter/ MATE3S for this project? </div>
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Equipment onsite:</div>
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Single VFXR3648 inverter</div>
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Two FM60 CCs</div>
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Hub4</div>
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MATE3S</div>
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ATS with Dual Relays 50A </div>
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L.A. Battery bank</div>
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Here's how we would like it to work:</div>
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Utility power ON: </div>
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Sell excess power once the batteries have gone through the Absorb cycle. Batteries remain full in case of a utility failure. </div>
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Utility Outage: </div>
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ATS now feeds Inv AC input via Generator if needed.</div>
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Inverter runs the home as it did , off grid.</div>
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If the battery voltage drops and the AGS is engaged, the inverter will use that input to charge the batteries as usual. If the grid comes back on and the gen is running, the generator can still run, with no connection to the inverter. With the grid now charging
the battery bank, and the AGS will enventually shut off the Gen. Based on voltage. </div>
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Contact me off list if necessary</div>
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Jeremy Rodriguez</div>
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All Solar Inc. </div>
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Penrose, CO</div>
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719-276-4954</div>
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