Quick PylonTech inverter settings query

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resybaby
Posts: 294
Joined: Thu Aug 17, 2023 3:33 pm
Location: Cornwalls North Coast

Quick PylonTech inverter settings query

#1

Post by resybaby »

Me again im afraid. Have been looking over my new setup and spotted the following which appears not to be right - best to check with far more clued up people and ask maybe a dumb question than be dumber and not ask at all. Dont want to cook my new kit.

I have 4 x us5000 Pylontechs.
Sparky set them all up and has indicated that the 'battery capacity' is 1600ah.
Have looked on the batterys spec and it says '100ah', which is what i thought they were.
So has the sparky entered the wrong value into my inverter?
Im thinking it should be 400ah (given i have four batteries).

Any thoughts on the other settings applied?

Thanks all
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4.0kw FIT PV solar Sunnyboy 4000tl & 7 x 570w JA solar panels
7.08kw JA Solar panels & Sunsynk ECCO 3.6kw.
7 x US5000 Pylontechs.
4500l RWH
Full Biomass heating system
iBoost HW divertor
Full house internal walls insulation
600min Loft insulation
resybaby
Posts: 294
Joined: Thu Aug 17, 2023 3:33 pm
Location: Cornwalls North Coast

Re: Quick PylonTech inverter settings query

#2

Post by resybaby »

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4.0kw FIT PV solar Sunnyboy 4000tl & 7 x 570w JA solar panels
7.08kw JA Solar panels & Sunsynk ECCO 3.6kw.
7 x US5000 Pylontechs.
4500l RWH
Full Biomass heating system
iBoost HW divertor
Full house internal walls insulation
600min Loft insulation
Tinbum
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Joined: Mon May 31, 2021 9:55 pm

Re: Quick PylonTech inverter settings query

#3

Post by Tinbum »

Yes, should be 400.
Last edited by Tinbum on Wed Sep 20, 2023 10:07 am, edited 3 times in total.
85no 58mm solar thermal tubes, 28.5Kw PV, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, 8kWh Growatt storage, 22 x US3000C Pylontech, Sofar ME3000's, Brosley wood burner and 250lt DHW
resybaby
Posts: 294
Joined: Thu Aug 17, 2023 3:33 pm
Location: Cornwalls North Coast

Re: Quick PylonTech inverter settings query

#4

Post by resybaby »

Thank you for confirming Tinbum, shall go change that right away.
4.0kw FIT PV solar Sunnyboy 4000tl & 7 x 570w JA solar panels
7.08kw JA Solar panels & Sunsynk ECCO 3.6kw.
7 x US5000 Pylontechs.
4500l RWH
Full Biomass heating system
iBoost HW divertor
Full house internal walls insulation
600min Loft insulation
Tinbum
Posts: 1115
Joined: Mon May 31, 2021 9:55 pm

Re: Quick PylonTech inverter settings query

#5

Post by Tinbum »

All the voltage settings are wrong. They should be set by the bms though.
I think it's best to change them though as if their were a problem it may default to them. The Max voltage for a Pylontech is 53.2v
resybaby wrote: Wed Sep 20, 2023 10:04 am Thank you for confirming Tinbum, shall go change that right away.
Last edited by Tinbum on Wed Sep 20, 2023 10:07 am, edited 1 time in total.
85no 58mm solar thermal tubes, 28.5Kw PV, 3x Sunny Island 5048, 2795 Ah (135kWh) (c20) Rolls batteries 48v, 8kWh Growatt storage, 22 x US3000C Pylontech, Sofar ME3000's, Brosley wood burner and 250lt DHW
sharpener
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Re: Quick PylonTech inverter settings query

#6

Post by sharpener »

It does look like some of the settings are wrong.

As well as the total capacity I wonder about the voltage settings. Pylontechs are different from other LiFePO4 batterries in that they only have 15 cells, not 16, so the voltages are lower. Mine measure 52.7V when 100% charged.

Victron recommend a max of 53.2 in this document which is worth a read.

It may be that the inverter settings are overruled by what the BMS sends over CANBUS but I would turn them down.
16 x 230W Upsolar panels S Devon, 4kW Steca, 3.9 MWh FITs/yr
8 x 405W Longi panels, 250/60 MPPT, 3.3 MWh/yr
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Stinsy
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Re: Quick PylonTech inverter settings query

#7

Post by Stinsy »

Most inverters have these settings but they are usually totally ignored for setups such as yours where there is a BMS communicating the correct numbers.
12x 340W JA Solar panels (4.08kWp)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger

(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)
resybaby
Posts: 294
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Location: Cornwalls North Coast

Re: Quick PylonTech inverter settings query

#8

Post by resybaby »

Thank you once again guys, have altered the settings now as advised.
Steep learning curve for sure. :shock:


Image
4.0kw FIT PV solar Sunnyboy 4000tl & 7 x 570w JA solar panels
7.08kw JA Solar panels & Sunsynk ECCO 3.6kw.
7 x US5000 Pylontechs.
4500l RWH
Full Biomass heating system
iBoost HW divertor
Full house internal walls insulation
600min Loft insulation
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