I think there are two type of firmware, the regular firmware where it is necessary to connect a battery and the firmware without battery.
Frankly I do not know what brings the firmware without battery apart from not having an error when you do not connect a battery?
Regarding the mixing of...
The wifi module communicates (modbus IP to serial) with the EAsun. It is clear that before doing the upgrade it is necessary to disconnect the wifi datalogger. The USB port of the EAsun SMX is connected to a "USB to serial chip CH340T", using the wifi module could conflict with this serial...
Hi guys,
I have corrected the diagram to reflect what is actually programmed.
An alarm can stop charging or discharging or both. Alarms force charging settings.
Example: if the “CAN Charging enabled” switch is OFF but the BMS reports a UVP alarm => battery charging will still be requested.
If...
Here's what's on my todo list :
Improve the alarm system to react before the BMS - first test with version 1.16.5 ( @eumobong )
Replace timer absorption with tail current detection ( @shvm )
Test Web Server JS ( @shvm )
Regarding the replacement of the absorption timer, I'm not convinced that...
Thanks for the info, I added it in the README.
And I modified the schematics like this:
3.3V CAN BUS
RS485-TTL RS232-TTL CAN BUS (3V3)
┌──────────┐ ┌──────────┐ ┌────────────┐ ┌──────────┐
│...
There should be no limit for a multi-bms bms Master Slaves version. (still needs to be developed).
I ask the question because if you wish you could test the multi-bms version (2x JK-BMS BLE) on the same Atom S3.
The first tests could begin in a few days.
Yes I was interested in those who bricked their AIO and I hope they will manage to put it back in service. And it is clear that I am very hesitant to do an upgrade without having received a firmware from a reliable source and with a changelog.
The only thing you can see by looking at your...
No, there is no interest, the basic version of JK BMS B2A20S20P is sufficient to work with this project.
Here is the link if you want to buy the board : https://github.com/Uksa007/esphome-jk-bms-can/discussions/16
FYI, JK has released a new BMS for inverters and the CAN communication port...
In my EAsun manual the parameter 36 is absent and also in the SRNE HF4850S80 manual but in the SRNE HF4850S80 P (parallel) manual it is present.
All these manuals are the same with the same errors ? and sometimes corrections... The best I've seen is the PowLand site which provides the manual...
Correction !
If TOU<100% the charging voltage requested via CAN bus will be reduced by 0.5V, therefore the same behavior as in % mode (lead acid).
TOU must be = 100% to charge with the full charge voltage.
It's clear that it is important not to exceed the specifications because the components of the Voltronic / SRNE inverters and surely others are dimensioned as accurately as possible.
When it says "Max Open Voltage 500V" on the label, I can tell you that the capacitors on the board are 500V...
For 48V battery ;)
To set the same value for parameter 04 and 14, you must set parameter 14 greater than the desired value for 04. Next, set parameter 04 and then set the value of parameter 14 to the same value as 04.
Parameters 14, 04 and 12 could be set lower like 48V but I increased them...
Obviously, your network must be secure. I don't expose my HA to the Internet by opening ports. My only means of access to my equipment is via a secure VPN tunnel.
The good weather is coming and the production is getting good. And I now notice some strange things... During solar production, every 30min I notice a freeze of the SCC MPPT. During this moment, the PV icon flashes, it lasts almost 2 minutes then production starts again...
Can you tell me if...
The canbus status tells you the status of the links between the canbus board and your inverter, if your inverter responds well with the CAN ID 0x305 then this link is considered active. So a status/canbus links, there is no relationship between the number of BMS.
Maybe you still have some...
@arzaman
This is completely normal. The difference can really be seen above 3.4V or below 3.0V.
Your cells become unbalanced over time, it may only be a few Ah but enough to have a problem.
I have soon finished a new BLE script with a balancing function for you. :cool:
I updated my topic.
I have just opened another MCCB same model but 150A version and the two cages are magnetized in the same way as shown in the photos of terminal 1. This shows that the direction of the magnetic field does not matter in operation of this MCCB and confirms my analysis below.
If your AIO works with the iPower application then it is an SRNE.
iPower 2.1.2.0
It would therefore be compatible with Solar Assistant by choosing the SRNE protocol ;)
During a mixed day with little sun, the power losses are less visible on the "PV Power" curve and I would even say that the sweep is beneficial if we look at what is happening at 13:54:10 when a sweep begins.
It was finally the EASUN POWER EU VAT-FREE Store where I ordered my unit which responded to my request and sent me the requested firmware, without battery (mixload) 6.35 version (which I do not recommend to use) and the regular firmware with battery 6.17 version which works well for me...
This is exactly what is happening, the reduction of the fans until the complete stop then a resumption of maximum power load.
Except that during this phase, my PV icon flashes => it's a firmware improvement :ROFLMAO:
I took a video for you => SRNE MPPT sweep video
Below are the graphs...
You and also @Mattb4 say you have never seen this with your AIO.
And if that's really the case that's good and it gives me hope for a new firmware.
Personally I think that without Solar Assistant I would never have noticed either...
As for the WiFi datalogger dongle, don't buy this, it's a...
I don't see any relationship with floating.
Off-grid it can be 80W consumed from the battery.
On-grid it is 40W from the battery and 40W from GRID.
There is a Low Power mode (only for on-grid) and a Shutdown mode only for off-grid with lower consumption but with the inverter output OFF.