Info for port back-up fox ess ac1-3.0-e

[Dave Foster]

Yes that’s fine, just for information it does support to 1 decimal place so you can have 6.1, 6.2, 6.3, 6.4A etc..

[shoot3r]

good morning Dave. So I planned it with the schedule as per the screen, because even in the afternoon I have sun until 7pm and therefore according to the program they should be charged from 11am. I set the battery charge from 35a to 7.5a and let's see how it goes. I'll update you

[shoot3r]

then with the planning it works really well. I detect 0 errors and neither the Solaredge nor the Fox Ess inverter seems to have ever been disconnected. I just have to start understanding how long it takes more or less for the batteries to charge so as to adjust the interval and if I want I can try setting the charge to 8a so when there are peaks the input (during the program) will work well without interrupting

[Dave Foster]

That looks great, hopefully it's all coming together now.

In the future if you consider setting up a home assistant connected to the AC1 via RS485, you can automate all the AC1 charge functions, work modes etc.. - changing the charge rates on a daily basis to suit the battery SoC, solar forecasts - I appreciate it's just another huge learning curve for you but thought i'd mention it so you know it's possible.

[shoot3r]

what you mentioned would be really fantastic and I'm very interested as soon as I finish some work I will do it. If you want obviously when you can could you explain it to me? I would like to do it. Another thing is that I charge it at 7.5a, maybe I have to lower it because it charged the batteries in 3 hours and 30 minutes. I'll try to bring it to at least 7a precisely. However, I'm very curious about that really interesting project. If you like, you have carte blanche

[Dave Foster]

I've attached a few links, the first is to my colleague who wrote up his home assistant installation https://github.com/TonyM1958/HA-FoxESS- ... -a-USFF-PC in his case he used a cheap ultra small form factor pc, but you can also use a Raspberry Pi (4b or greater).

The second link explains how you go about wiring an RS485 module to the inverter and it provides some links to low cost devices you can use to do this https://github.com/nathanmarlor/foxess_ ... ring-Guide

Hopefully that will give you some good reading on the subject, using the application (or integration as home assistant calls it) from the second link will give you control over charge periods, work modes, min and max SoC settings, charge/discharge current controls and also real time data such as voltage, frequency, battery SoC and lots more. Using home assistant you can use automations that do things like 'if the voltage > 254 volts, turn up the charge current'

[shoot3r]

good morning, thanks Dave it's very interesting. thanks to your advice and the programming of the work mode based on the time slots you have opened up a world to me and solved many problems. I must say that since our last massage I have had no problems and I am also able to optimize consumption, battery recharges and everything else really efficiently and 0 errors in the evening or inverter interruptions. It's fantastic and only thanks to you and your support/patience I managed it. As soon as I can I'll check the links you put up and I'll see. But already like this I can take advantage of everything 90/100%. Thank you very much
P.s The only errors are from last night but there was a blackout in my area

[Dave Foster]

That's great news, it sounds like you have done a great job in managing it

and you're very welcome.