I’m looking to connect my Solaredge inverter SE8KAU (LCD model) - however the instructions for the connection all refer to a standalone GX device. The documentation for setting up the inverter is quite clear however not so much for the Multiplus II GX side. I’m trying to connect it to the inbuilt GX in the Multiplus II 5000/70. Do I connect it via the RS485 to USB adapter to the USB port? the VE-Bus port? The spare BMS Can port? And once connected how do I configure it on the GX?
Lets wait some more feedback but, as long as I know, you can integrate SolarEdge with Victron via IP network but not via RS485.
Just to follow up, I wasn’t aware that the Solaredge inverter settings were for delivering RS485 over IP. I thought you had to connect the RS485 directly the GX device. When I changed the settings on the inverter as per the Sunspec document, the inverter eventually showed up in the VRM. Took a while and it dropped off once but since then it’s been rock solid.
For others wondering how to do this go to this document section 5 How to configure Sunspec to allow inverter monitoring via Victron GX device.
The other sections are for paralleling the output of Solaredge inverter with the Victron (using frequency shifting) which is not practical in my case as the inverter is 3 phase and I have a single Multiplus II.
That is what I said above. I should have pointed the document you mention, sorry.
I new it works via IP but never saw it working via RS485. Now, if you have a battery on the SolarEdge, like I have, then you have a problem as it will stop working. For some reason the battery stops talking to the SolarEdge when we change the SolarEdge bus address to 126. I have open a question in the forum but did not get a single response.
I believe in the documentation it says you have to change the RS485 device address on the SolarEdge inverter. It can only support two devices 0 and 1. So I believe you probably have a device address clash. Even though it is not communicating over RS485 it is still using that protocol over IP. See this document for more information, although I can’t remember which document I actually read this in, the one above or theVictron doc.
I guess this might depend on the type of battery used. I have a SE10k-RWS with a BYD LVS battery and after changing the ID to 126 the battery is still accessible and can be controlled.
My battery is a LG 10K. I will give it a try again, maybe the firmware has changed and it is now working. Notice that SunSpecs works ok with Cerbo GX collecting the info. The problem is that the battery loses communication with the SolarEdge when I set it to address 126.
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