FoxESS Community - Owners & Installers Forum

Hi, I am setting up a schedule so that I charge between 2-5am and discharge at 4-7pm, however discharging starts at 5am, see schedule below. We use Octopus Flux and we have a 5kw inverter.

Time 14:00-16:59
Force Charge.
Min Soc - 10%; Max Soc - 100%; FCSoc - 10%; FC PWR - 5000w.

Time 16:00-19:59
Force Discharge
Min Soc - 10%; Max Soc - 100%; FDSoc - 30%; FD PWR - 5000w

I also have self use schedules set up for the time either side of the above.

Min Soc - 10%; Max Soc - 100%; FDSoc - 10%; FDPwr - 0.0w

No matter how I adjust the settings it don’t work!

Any help will be appreciated.

Gary

I think i'm reading this wrong, you said you charge between 2am and 5am but your schedule is set to charge from 2pm to 5pm ?

You've also got an overlap on your charge and discharge, the charge ends at 16:59(:59) but the discharge is starting at 16:00 ?

Can you screenshot the schedule page and post it here

Typo, it would read 02:00 - 05:00. Copy and paste don’t work here.

Actually 04:59

You can add an image direct from your phone/tablet/desktop by clicking on the 'Attachments' tab below a post, then add files and choose where it comes from.

It would really help to see the graph you get at the bottom of the page when you swipe left on the app.

The most obvious thing I can see wrong with the Force Charge is that FCSoC should be set to 100% (same as MaxSoC)

Any further thoughts?

The Force Charge needs FCSoC setting to 100%, it won’t charge at 10% it is acting just as MaxSoC does.

On your self use times, the inverter will always revert to Self Use when a schedule has ended, the only time you would need to set it is if you had changed minsoc as that is left as per the previous schedule when it ends.

In this case you haven’t changed minsoc so you don’t need any of those self use schedules, best to delete them.

Thanks. Can you confirm that I have both charge and discharge settings correct now.

Thanks

Gary

Yes both are set correctly, the only comment to make is the schedules end on the 59th second of the time, so you would be more precise ending at 18:59 and 04:59 but it’s only a minute.

So just to confirm what each is doing,

The Force Discharge will discharge the battery, starting at 16:00 and ending at 19:00(:59), and will cut off should the battery soc drop to 30% - discharging at a rate of 5000 watts.

The Force Charge will charge the battery, starting at 02:00 and ending at 05:00(:59), charging to 100% - at a maximum rate of 5000 watts.

You don’t mention your inverter model and there have been a couple of issues on the KH series with firmware 1.52 in that the force discharging would not return to self use when it hits FDSoC, 1.55 firmware fixes this.

Thanks, The Inverter info attached.