Luxpower inverter: what does this mean - "System Charge SOC Limit(%)"

[MrTWales]

I really have tried to find out but there is nothing in the manual, or any similar manual online - though many have a similar page to the page below but without this parameter. 

 

I get what "System Charge Power Rate(%)" is, though is there any reason it's bad to put in 100%? Looking looking online most of the time it's 80% or something like that. I'm not sure if this overrides the "AC Charge Power Rate(%)" parameter but I'll just set them as being the same.

 

I get what "Stop AC Charge SOC(%)" means, even I can understand that!

 

But what is "System Charge SOC Limit(%)"? If the page isn't loaded up then it wants a [10,101] range but it doesn't like anything if I put a figure in and press "set". I think I changed this recently, thinking it was the previous field by mistake, so I don't know what it was previously set as and I can't seem to set everything to default either.

 

My inverter is called LXP Hybrid Inverter 6K [LXP-6K Hybrid].
 

Any clues would be appreciated!

 

 

 

 

 

 

Edited November 24 by MrTWales

[MikeGrahamT21]

As a guess, I’d say system charge power rate is depth of discharge, 100% will depend on what battery is attached, but in any case will shorten its lifespan, 95% is a better option.

 

And system charge SOC limit I would guess is the lower limit at which point it pulls from the grid for a short while to prevent the charge from going too low, again prevent unnecessary damage to the cells.

[MrTWales]

Thanks, that is interesting.

 

There is another setting elsewhere where the battery is stopped from going below a certain point (6% or thereabouts) and this setting is only in the charge section. At the moment it shows a zero but this is out of range so I guess it's assuming the default, whatever that is.

[MikeGrahamT21]

Could be, in which case I’ve no idea what that setting means, almost seems doubled up doesn’t it?

[MrTWales]

Thinking about it, it seems like it must refer to the max battery charge when not using AC (ie through solar I guess), but it gives me an error if I try to set it to 95%. Maybe it's effectively doing nothing now but in the summer it lets the battery fully charge.

[MrTWales]

Just to update this, in case by some miracle someone else comes across the thread with the same question, I couldn't update the setting as the inverter needed a firmware update. It's not something I can do myself but I got good responses from LuxPower and they updated over night.