Day One Setup for IOG

RTRSTAR · 2025-09-27T08:30:52+00:00

We've had solar panels, a battery and a Zappi charger with EV for some time and until I heard of WW every time my phone notified that my car was charging dur...

RTRSTAR

Thank you for all the support and advice - it is now working, but each time an IOG cheap period is initiated and the battery charges it kicks it into Force Time Use with the timings of the IOG cheap period. Unfortunately when the cheap period is over (or if it changes) it then stays in Force Time Use so doesn't power the house, or it has a very extended charging period set, as in the picture, so keeps trying to charge.
Any further advice would be much appreciated.

RTRSTAR

I think I've sorted it, the Charge 2 period had been partially reset but not the start time, so it was causing an override. Although I also now need to keep it on Force Time Use and not Self Use but WW seems to send an instruction for Start and end time of Charge 1 and then outside that it goes back to self use.

Thank you for all your help and answers - looking forward to saving lots and making my battery most efficient.

admin

RTRSTAR We'll make sure we set it back to Self-Use afterwards, which I don't think is happening at the moment, will let you know once fixed.

RTRSTAR

Sorry to come back on this one again, I thought it was all sorted, but actually I don't think the 'self-use' instruction was the problem. After first setting it up the instructions being sent to Solax were changing the times on the 'force time use' Charge Period 1 which reflected the cheap Octopus periods, but somehow the Charge Period 2 had been set from 0200 to 0000, therefore overriding anything between those times. I then set the Charge 2 Period to 0000-0000 and after that it all seemed to be working well.
Unfortunately I think the update that puts the Work mode back to Self Use then kicked in and now the battery isn't charging during cheap IOG periods as it's in self use. If I set the force use time myself, it then kicks it back to self-use after only a few minutes and won't charge. Not sure if I have a different battery/software that is causing a variance to how others are set up but it looks like actually it uses the Force Time use to send the instructions to the inverter. Could I please ask you therefore to reverse the last update as I now can't charge the battery.

admin

RTRSTAR We made no change to that yet. Just added some extra logging.

We’ll check the logs.

admin

RTRSTAR This should be fixed now. Please let us know how you get on.

RTRSTAR

Evening, I'm afraid it isn't working again. It did briefly all work the other day but is now not. I got home after work today and plugged the car in, 30 seconds later was notified by Octopus of a charge period of 2000-0500. At 2000 I checked and the battery wasn't charging but the timings had changed to 2030. At 2030 my car started charging but my battery did not. Looking at the activity log it looks like an instruction was sent to the inverter at 2003 to charge between 2000-0600 but the battery hasn't started charging and the timings don't appear to be reflecting the most recent Octopus IOG timings on the Octopus App.
I'd love to get this working and really appreciate the support you're giving.

admin

RTRSTAR Strange, because the instructions we sent to Soalx were successfully received without any errors. Including the charge from 20:00-6:00.

RTRSTAR

Sorry but something still isn't working, from the logs I can see that instructions were sent to the Inverter at 20:02 on 2 Oct to charge, and the battery was at 10%, instructions to charge were sent again at 2100 and 2132 but as you'll see the battery was still at 10% and had not charged at all.
This was working the other day for about 36hrs and then something has changed and the instructions may be getting through to the inverter but are not being implemented - any thoughts?

RTRSTAR

@admin , not sure what’s happening now but any instructions sent during the day seem to work and be implemented by the inverter, but for some reason the instructions in an evening are getting an error message and the battery isn’t charging overnight. Can you please take a look and see if you can identify what’s happening?
Cheers

admin

RTRSTAR Looks like the target SOC of 100 could not be set. Very odd. See logs below.

Maybe it's something to do with the fact the Solax inverter is at 10% and in idle mode? But why fail at that specific instruction/register setting?

WindyMiller

Wrong thread! Sorry.

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