John Bijker

Hi again, The infini 10KW works fine, after a couple of months. During sunny days when available solar charged allready my batteries, i would like to “feed-in to grid” my additional current. Here in Spain Iberdrola will pay €0,05/KWh. I just need to activate “Allow to feed-in to the grid” ? And i don’t need extra cards or meters? What means the “Feeding grid power calibration R S T” ? Many thanks in advance, John

Hi, my name is John, and i have a similar configuration. (Axpert MKS VM III 5000 48V with 2 Dyness B4850 This is the reply from Dyness: As mentioned, you are using 2 units of B4850 and 5kW VMIII, which is far away from our recommendation. Usually Dyness suggests users to use battery in 0.5C, the ratio of battery to inverter will be 2kWh:1kW, a 5kW inverter would be better to work with 10kWh battery, in Dyness range, you can do 4*B4850 or a Powerbox F-10.0. About settings, you can find in user manual attached, page 18. Battery parameter settings on the inverter Max Charging(Bulk) Voltage: 53.5V Absorption Voltage: 53V Float Voltage: 52.5V Shut Down(cut off) Voltage: 47V Shut Down(cut off) SOC: 20% Restart Voltage: 49V Max Charge Current: 25A*battery QTY Max Discharge Current: 25A*battery QTY Capacity:1*B4850=50Ah

Installed a Infinisolar 3-phase 10KW grid- tie with back-up II AC-out connected to loads AC-in connected to grid 6 pylontech batteries 2.4KW 18 Atersa 335Wt solarpanels. Question: How to connect generator to InfiniSolar in case PV no produce power, and batteries empty and grid failure? My AC-in is allready occupied.. Any help is welcome.

Hi, i have changed all my settings to Tie-grid with back-up II. (Like you showed me) I needed to change charging source to ‘PV only’ to force the inverter to discharge batteries, during the day, when the loads were higher then PV, otherwise Utility would have helped PV when loads were higher, instead of the batteries! When i change to ‘PV and Grid’ in charging source, utility will charge batteries and ‘help’ PV to power the loads! That’s not what i want... Another question is: Are the dipswitches of the BMS-card OK for my system? (Infinisolar 3-phase 10KW with 6 pylontech US 2000 2,4KW) Thanks innadvance

Thnx. for the quick answers, i’m happy with them.

Thank you very much for your answers! so, for a 10KW inverter i could discharge max 200A? Or, because i have 6 Pylons only 150A? What’s the difference between Grid-tie with backup (II) and Off-grid( I) besides feed into the grid (wich you don’t use)

Thank you very much for your answers! so, for a 10KW inverter i could discharge max 200A? Or, because i have 6 Pylons only 150A?

I’m still waiting for my BMS Card (to communicate with the batteries) for the intelligent slot of the Infisolar 10KW so i need to know the values untill the BMS Card will manage..

Hi RikH I don’t know what PYL mode is...

Hi guys, i’m very happy with this forum, because i can’t find important info elsewhere. Let’s start saying what installation i have: I have an Infinisolar 3-phase 10KW inverter 18 panels Atersa 335Wt 6 Pylon Lithium bateries 2.4KW Settings: PV Energy supply priority setting: Off-Grid (I) Max. charge current 100Amp Max. charge current AC 50Amp Bulk charge 53,2V Float charge 53,2V I would like to use as much battery power as possible, let’s say, discharge everyday to 25-30%. I would like that any PV amount above my load will be used to charge my batteries. If PV drops below my load (clouds or towards the end of the day), the system will draw the shortfall from my 6 Pylon batteries. Once my PV is down to 0, it will draw my full load from the Pylon, (with gridhelp; in case cooker, kettle and coffeemachine are needed at the same time) Once my Pylon voltage drops to my 'Back to Grid voltage (discharged to 25% i don’t know what voltage that is, yet), it will switch over to Utility. It will run on Utility until my Pylon’s have been recharged back to the 'Back to Discharge Voltage' setpoint (what voltage setting?). Then it will run on PV/Battery again until my Pylon’s voltage drops to my 'Back to Grid voltage setpoint again - and so on... Questions: What settings should i make for: -Battery cut-off discharching voltage when grid is available? -Battery re-discharging voltage when grid is available? -Battery cut-off discharching voltage when grid is unavailable? -Battery re-discharging voltage when grid is unavailable? -Max. battery discharge current in hybrid mode? Any help would be more than welcome again. Thnx in advance John Bijker

Thnx for the quick answers, I’m really happy with it! I would like to run my system this way: (It’s a reply from @OneillZA 22-7-2020) in order to use as less energy from the grid. (‘'Output Source Priority') is set to SBU - which means Solar -> Battery -> Utility. This means that your system will run on PV during the day. Any PV amount above your load will be used to charge your batteries. If PV drops below your load (clouds or towards the end of the day), the system will draw the shortfall from your Pylon. Once your PV is down to 0, it will draw your full load from the Pylons. Once your Pylon voltage drops to your 'Back to Grid voltage for SBU priority' setpoint (47.0V as per your screenshot), it will switch over to Utility. It will run on Utility until your Pylon has been recharged back to the 'Back to Discharge Voltage' setpoint (54.0V as per your screenshot - way too high - see below). Then it will run on PV/Battery again until your Pylon voltage drops to your 'Back to Grid voltage for SBU priority' setpoint - and so on... You have 2 options: Change your 'Output Source Priority' to SOL - which means that it will run on PV until PV drops down to 0 (shortfall supplied by battery until then) and switch to Utility at that point Increase your 'Back to Grid voltage for SBU priority' setpoint to a higher value to have the system change earlier to Utility (e.g. increase from 47V to 50V) A few further settings that you should change immediately: Your charging parameters are way too high for the Pylon. Recommended settings here are Bulk 52.5V and Float 51.8V Your 'Back to Discharge Voltage' is also set too high - which means that at the moment your system will only switch back from you to PV once your Pylon is fully recharged. This obviously needs to be somewhere in between your Float voltages above and your 'Back to Grid voltage for SBU priority'. Remember that your inverter will keep constantly drawing just over 40W from your Pylon even if it running on Utility - which means that your Pylon in the morning will be at a lower SOC than it was in the evening even if you have been running on Utility the whole night I would also recommend changing the following other settings: 'Output Mode' is currently set to Parallel. If I am not mistaken, this should be set to Single as you are running only a single Axpert and can cause sometimes problems I would set 'Max charging current' and 'Max AC charging current' both to the same value. Recommended value for your Pylon is 25A. As I don't think that the Axpert supports 5A steps, I would recommend 20A for both settings Your 'Charger Source Priority' is currently set to Solar First, which means the Axpert will use whatever PV is available to charge the battery. If no PV is available, it will charge from Utility. If with the settings made above you are not significantly drawing down on your Pylon in the eve, then I would change this to Solar Only. Then your Pylon will only be charged by excess PV that you have and not by Utility. Question: Are the values (charging parameters Pylon) mentioned by @OneillZA suitable for my installation as well?

Hello, my name is John, and i’ve read allready a lot about the Infi 10KW. Installation: 18 panels Atersa 335Wt (2 strings of 9 panels connected to 2 mppt) 6 Pylontech 2.4KW 1 Infinisolar 3-Phase 10KW Question: i would like to use PV power during the day, not used PV store in Pylontechs, and use batterypower during evening/night. If not sufficient Grid power will help... I’m still waiting for my BMS RS485 card for Pylontech. Can i run the system (temporary without RS485 card)? How to connect AC-out and AC-in to my DB Board? Or is it better (i read it in this forum) to put the whole house on the Inverter AC-output, and connect the grid connection (Main fuse) to the Inverter AC-input? Any help is welcome