Because the 100% BMS is not always true and some brand of inverter stops charging at 100%. If you remain stuck at 99%, your battery has not finished charging.
Check this post concerning DEYE TOU : https://diysolarforum.com/threads/deye-weird-voltage-behavior-when-time-of-use-is-enabled.80908/
Please use "JK02_32S" if you own a new JK-BMS >= hardware version 11.0 (f.e. JK-B2A8S20P hw 11.XW, sw 11.26)
This is not linked to your number of cells but to the BLE protocol which is different from V11.0.
I checked if it was possible to contact SRNE support and I found their Chinese site where I could download the latest manuals in PDF format.
Here are the links:
HF-24V S - EU 230V ( EAsun SMX )
HF-24V U - US 120V ( EAsun MLV )
HF-48V S - EU 230V ( EAsun SMX )
HF-48V U - US 120V ( EAsun MLV )
I would like to try to help you. I contacted EAsun to get the regular firmware for my EAsun SMX II 5.6kW, it's not won.
You can also try to contact EAsun to get the firmware of SMX II 3.6KW.
There are two types of firmware, with and without battery. It would be nice to be able to get them.
In...
Very interesting, I myself had a problem with my differential circuit breaker and my EAsun SMX II 5.6KW. I don't know how I managed to create this problem and it only happened once.
If the operator network (AC IN) is connected with the ground wire everything works fine but without the operator...
If you use TimeOfUse you must at least have a time slot where you request a 100% charge otherwise you will never charge to 100%.
You can also try without TOU.
V1.16.1 on GitHub
Improved Alarm/Charging/Discharging Logic
Improved CAN protocol and Victron support (adding IDs : 0x372, 0x374, 0x375, 0x376, 0x377 and 0x382)
Fix : Slider charging_current max value = ${charge_a}
There are big changes in this YAML due to the implementation of the new logic...
In the case below the API is not disabled (possibility of connecting the ESP32 to HA) but this prevents reboots every 15 minutes.
This is not equivalent to fully commenting api:
api:
reboot_timeout: 0s
@shvm already sent me some code with new charging logic based on tail current etc. (I haven't taken the time to look at it yet).
Maybe you can discuss it together.
Interesting post about how an SCC MPPT works.
Mine behaves like point 2) so fulll sweep.
https://www.solarpaneltalk.com/forum/solar-panels-for-home/solar-panel-installation/2367-how-does-mppt-work?p=84580#post84580
The only thing you need to know is that @arzaman who carried out the tests with Atom S3 has not yet managed to connect to JK-BMS via Wire for an unknown reason. Normally Atom S3 should be able to do this. On the other hand, Atom S3 is much more stable than Atom Lite with the Bluetooth version...
@cinusik
How many BMS and how did you configure the BMS dip switches?
https://github.com/Sleeper85/esphome-jk-bms-can/blob/development/documents/README/JK-BMS-PB-CAN_solution.md
This function is not yet available for all inverters but Solar Assistant has a power management function.
https://solar-assistant.io/help/voltronic/power-management
My AIO does not work with WatchPower but iPower and Solar Assistant is really better than iPower.
What I also like about Solar...
If the charging switch is OFF in the BMS, it is strange that the charging current reduction does not occur for you.
Concerning the fact that the canbus links stop and that the soc is at 2%, that comes from my code. I will improve this. I think that the charging switch should no longer be part...
Hi everyone
1) HMI: 0000-C361 MAIN: 0-4382-1515
2) Original firmware
3) Don't upgraded
4) SUN-6K-SG03LP1-EU
5) Single phase - 230V - 50Hz
6) Produced on 2023-6-10 and installed on 2023-07-12
Does anyone here have the procedure to update the firmware? Are we obliged to go through the Deye support?
So you have version 5.6KP (parallel) with stock firmware. If you want to use it without battery and not have error 03 it is necessary to install firmware without battery.
You are the first with a 2.08 version 5.6KP model and I'm not sure if you can use the firmware for the 5.6KW model.
My...
I use the exact same board as you and it works for me.
Test the cable between JK-BMS and ESP32
ESP32 TX->RX and RX->TX!
You can also change GPIO to 18 and 19.
I think you don't understand.
The oxidation of the terminal that I show in the photo comes from a cell that was produced on 02/11/2022 so 20 months old.
The 16 cells (the cell with the oxidized terminal that I show in the photo is one of them) were then assembled for the first time with the...
I can confirm that it works for me with the JK-B* series BMS.
When you deactivate the Charging switch in HA is it really turned OFF in the BMS?
Perhaps this is a problem with the JK-PB* series and BLE, in which case you would have to open a bug in the syssi GitHub.
The BMS currently displays a voltage of 53.5V with a charging current of 30A. (I disconnected the ESP32 for the battery to charge).
This explains why after a reboot I stay on Wait.
But that doesn't explain why it stayed on Wait from 12:00 ?
Maybe a reboot of the ESP32 which will be unstable...
Do you have a battery strong enough to start a 2.5HP motor ?
It is normal to have the error 03 without battery, it is an inverter designed to operate with a battery.
There is firmware for batteryless operation but until proven otherwise it is unable to mix PV and AC IN.
I don't have the impression that those sold by QSO are machined.
I also spoke about this with Docan and I was told that EVE does not produce the terminals, they buy them and then solder them themselves in their factory.
So we end up with several factories producing different terminals... Which...
Edit: sorry it's for microinverter !
https://www.deyeinverter.com/news/events-news/deye-has-launched-new-firmware-version-for-microinverter.html
Does this mean that with the wifi dongle connected and up to date, the inverter will upgrade itself after 30 minutes?
Attention! the standard BMS is OK but this project only works with one BMS connected to the inverter.
This is not code with multi-bms interfaces like uksa007 sells.
It's an SMX 5.6KP ? so parralel version ?
According to the reading of the modbus registers it would be a version 2.08 with a boot loader 2.01. Can you see that on your unit's screen?
I don't know the default version for the 5.6KP model.
Have you done a firmware upgrade?
I have a 5.6KW with...
If you do a lot of change and testing with Wire and BLE. Sometimes it is necessary to remove your ESP32 from HA in order to remove all entities and then import it again.
The RS485 component for JK-PB* developed by @txubelaxu is quite recent, I suppose it will be improved in the future.
In any case, this is a question to ask @txubelaxu on GitHub.
This multi-bms version is a first step, I did it like this for the PVbrain2 PCB supporting up to 15 UARTs with an...
All calculations are carried out with max_cell_v see the equations below.
You actually have problems with your current config, you must use the multi-bms version in your case.
Multi-bms version (dev)