Hello everyone, we have established a system in turkey. In the system, there are 3 units of quatro 48/15000 in each phase, also mppt charge 150/85 x 6 units, Fronius eco 27, symo 20 and symo 10 available, lastly BYD LVL 15.4 kWh x 10 units available. all installations in the system are ok, but the batteries are not charging and discharging. Although the battery status shows 49% on the screen, the charge does not show any current, but it reads the voltage. I'm looking for help on this matter.
Hi @veliozbek,
Starting with the basic troubleshooting,
Can you please check the voltage at the battery connection terminals of the Quattros and the battery connection terminals of the BYD battery and make sure that they are reading the same?
hello guy first of all thanks for your help. There will be an opportunity to review this project for our project in two weeks. If there are a few answers to the questions you asked, what should we do? can you inform me about this. Finally, do we have a chance to get help by connecting to you live? thanks
Does the LVL use BMU?
We had a system with Flex Lites doing something similar. Reporting no current movement (with a clamp meter there is current moving in and out).
A total system restart worked to clear the issue.
The best way to get live 1:1 support is to contact your Victron Dealer or Victron regional sales manager - in many regions there are specialist technicians who make themselves available for this level of support.
hello steward, this project is the largest domestic storage and ESS project in Turkey, and the owner of both the application site and the facility is a very important business person in Turkey. But unfortunately we can't get enough support for this project in victron turkey. What should we do if the voltage at the Quattros battery connection terminal and the connection terminal voltage of the BYD battery are the same or different in the first reply you wrote to us on this subject. In addition, we will make 6 of this project according to the performance of the current project. That's why it's very important to us. Thank you
I understand, I have got in touch with Islam Varol the sales manager for that region to see if there is anything that can be done from our end.
Why is there a lynx shunt 1000 installed in this system? It should not be necessary with the BYD BMU. It needs to have a fuse installed that does not come supplied, perhaps it wasn't installed? Double check it.
Remove the covers of the lynx distributors;
Isolate(disconnect) the AC grid connection to the Multis, and the PV input connection to the MPPTs, make sure the BYD battery is on.
Using a multimeter - measure and record what is the measured voltage is on;
If there is any variation between any of those figures, VRM is reporting that there is, so you need to try to identify why.
If it is not obvious, take lots of photos and report back and maybe we can see something.
Merhaba @Guy Stewart (Victron Community Manager) , yardımlarınız için tekrar teşekkürler. Mevcut busbar sistemiyle baralarla birlikte. Ancak BYD pil girişine izin vermiyor. Aslında tek pil ile denedik bugün tekrar bakacağız. ikia öneriyor. BYD ve Victron arasında minimum bir yapılandırma var mı? ya da tüm pil gruplarını birbirine bağlamalı ve gelecekte olacakları için zaman vermeliyiz.
Analysis of those voltages measured at those locations is the next step in the troubleshooting process.
hello, today we separated the whole system from each other. we removed all the ends of the batteries connected to the busbars. and batteries each left alone. We also canceled the communication cables with each other. Then we measured the outputs to the busbars behind the battery separately from each battery, but we could not see even 1 V at the output of any of them.
What I would have done to troubleshoot the system was wire it together as described by the documentation and training, and then take voltage measurements at the points I listed 1 to 6 above. That would point to where the issue is.
Did you record the voltage readings at each of the points as I described above?
Did you confirm that the fuse was installed on the lynx shunt? Did you find out from the installer why the lynx shunt is installed in the system at all?
This would all be best discussed directly with your Victron distributor network and regional sales manager - they are the best line of support.
Hello Veliozbek, in the device list of the Cerbo, do you see the BYD batteries ?
If yes, then go in to this menu and go to details. Here you must see some more about all your batteries.
I am interested to know what you find.
Rob
hello guy first of all thanks for your help. There will be an opportunity to review this project for our project in two weeks. If there are a few answers to the questions you asked, what should we do? can you inform me about this. Finally, do we have a chance to get help by connecting to you live? thanks
Hello Veliozbek, The Cerbo GX must be able to 'see' the BYD batteries. Remember the special type-A cable between the BYD and the Cerbo. Bring the BYD app on you phone and make sure it is updated. All communication between the batteries must be good.
With this you must be able to get this going.
Rob
Hello @Guy Stewart (Victron Community Manager) thank you for your help! to our installer @veliozbek...
In this project, we have 10x BYD LVL 15,4 kWh which are already comissioned and updated, the status in the battery BMU shows normal, the led status is on standby without any charge or discharge.
The inverters or MPPT devices dont charge the batteries and we have the screen on cerbo gx as below; no SOC info or current flow indicated.
Do you think the root cause still occured by the BYD batteries or the DC busbars and fuses? Or something missing on Victron configuration? If you have experienced before.
Thank you.
