My project Solax G4 and ZOE 41 Dala Emulator

[moustik]

Hello dear members,
I've embarked on Dala's project. My photovoltaic system is equipped with a Solax Hybrid G4 inverter.

I bought a 41kWh Zoe battery.

I built my emulator, following, I believe, the instructions on Dala's GitHub to the letter.

I installed an insulator between the inverter and the emulator.

I connected the ground wires between the battery and the inverter.

I have no connection between the inverter and the emulator. The error messages are attached.

error message IE19

I have no connection between the inverter and the emulator. The error messages are attached.

I checked every connection between the MCP2515 module and the LilyGo, and everything seems OK.


I should mention that I'm not skilled in programming.

Thank you for your help.

 

[moustik]

I measured the voltage present on CAN H and CAN L at the inverter output. I have approximately 2.3 volts across the terminals of the isolator module, using the Solax casing as ground (P.E).

I tried the same measurement on the connectors of the MCP2515 module. I have approximately 24 volts between H and L, using the battery casing as ground (P.E). This 24 volts is intermittent.
I ordered another MCP2515, this time with a ribbon cable.

 

[moustik]

here is the log

 

[moustik]

I found the solution to my communication problem. I forgot to put the jumper on the MCP2515 board.
If you want to test your configuration, follow the link.

CAN logging

This revolutionary software enables EV battery packs to be easily reused for stationary storage in combination with solar inverters - dalathegreat/Battery-Emulator

github.com

 

[Korishan]

Yeah, I think most of us have done that simple mistake before Glad you found the problem tho, and that you reported back with the solution in case someone else has a similar issue.