Hello
I’m busy with monitoring my installation and find some “strange” behavioural. When my installation need 2000W only 1500W is coming from the Multiplus the other 500W from the grid?? What do I wrong? That battery state of charge is 90% so energy enough. Charging the battery is not a problem, this goose with 50A, the value that I configured.
Limit Inverter power is off, in the ESS tab.
What kind of battery and BMS do you have?
Please check Settings → BMS → Parameters → DCL What is it set to?
Hello
I got a Basengreen battery 15KWh
DCL = 184A
it looks that the Basengreen battery is the problem. They slowdown the multi and stay on 31A. So the 184A and 200A from the datasheet is only a useless number…
So do you see 31 or 184 A as value for DCL under Parameters?
In case it is initially set to 184 but gets reduced at discharge, then that is a BMS (setting) issue.
Also. Is the battery connected to the Multiplus or not? If yes, how?
The DCL parameter is 184A. (Charge and Discharge)
When i try to consume for example 2000W the BMS locks on 31A.
The battery is connected with 2x 75mm2 dc cables (1.5m) to the mulit and CAN is connected. (Custom cable is made)
The setting of the BMS is pylontech and there is communication between the multi and the battery.
I visited basengreenshop.com and found this protocol: “ Victron-CAN-V1.00 - 211135” for Victron inverters. Why do you use Pylontech?
Please note that I have zero experience with these kind of batteries, but I’m only trying to help. I did see some kind of app screenshots with a lof of yellow. Do you use that app as well?
Yes, you are right, when I try to change this (on the screen) I can choose Victron (in the CAN setting), after pressing enter, the screens return and says it is pylontech…. I can’t change. After changing the protocol, the battery LED’s are changing and a get a sound. Also, the SOC level is not displayed on the screen, in other video’s I see this always.
Yes, there is an app, I tried this already yesterday, I downloaded this on my phone, but no battery found when I push the search button. When I go in my BLE settings from the phone, the battery is enouncing but no connection possible. And I’m only there to make the connection so nobody else is connected as described in de “Manual”.
Yesterday I send en mail to Basengreen, no answer.
Update: I was able to change the CAN type to Victron by using the external tool with RS485.
After looking inside the parameters i can’t find the 185A inside the BMS??
So where is Victron reading this parameter?
The GX does not "read"the value, it is sent these parameters by the BMS.
Which means the BMS is configured to use the victron spec and is sending the value in the correct register.
If the BMS is intervening on discharge, then it is not configured correctly or has inadequate firmware.
This is something the battery supplier or manufacturer will need to assist with.
ok, if it comes on support from Basengreen, then the party is over, nobody answer any mail. On the chat, they are to busy, well i understand if you sell some crap things it is normal that you got a lot of “work”.
I read the “whole” BMS and the discharge parameter is set on 250A in Victron 185A, hmm
A BMS will adjust the limits based on its programming. So the maximum in the BMS may well not be what it sends.
This is the risk with unsupported batteries.
The supplier always promises it works, but when there are issues they are nowhere to be found.
If you want to dig in and go lower-level you can use socketcan to trace the parameters it is sending over CAN.
Bottom line is victron have a spec, if the battery conforms to the spec then it will appear on the GX and send it’s parameters. This is what the GX reports.