[RE-wrenches] Inverter On/Off Switch use Outback FX

[jay]

HI All,

I wanted to revisit this thread for one reason.

If you turn off the inverter at the remote on/off with the AUX relay, then starting the generator won’t have any impact as the inverter is off.  
So someone will have to go and reset the AUX relay.

Vs

If you do a relay on the AC output, when you start the generator, it will start charging, raising the battery volts, causing the AUX relay to close AC output relay and you’ll have power in the house.

Am I missing something?

thanks

jay








Here is the last email I think:

Mac,

I think you've got an elegant solution to the problem. All you need is an inexpensive relay and to program the Aux output for loadshed. I believe shutting down the inverter with the remote on/off contacts is actually less stressful on the inverter than opening a relay or contactor on the load side.
Kent Osterberg
Blue Mountain Solar


On 7/11/2023 5:19 PM, Mac Lewis via RE-wrenches wrote:
Hello Wrenches,

I'm trying to solve an issue with an older Outback FX system.  It's a quad stack of Outback 3648 FX inverters and he has a couple of Fortress eVault and an unreliable generator. The LBCO setting can't go high enough to cut out before the eVaults cut out so he occasionally will have to direct charge the eVault to get things running again.
I'd like to use a 12V Aux relay logic to trip the primary inverter on/off contacts before we go into battery shutdown so the solar has a chance to recover the system.  Pretty simple overall but I wanted to see if there are any known ill effects of doing this with substantial load on the system.  Of course, I can use a power relay but this may be better.
Thanks for your input!

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