2-wire Start Mode

[MiddleSiggy]

I have been a long time user in the "normal" configuration for a long while now, but I have recently put in a hybrid whole house solar system, and am now going to use my generator to only charge my batteries when there is no grid or solar power.

The way this happens is you put the controller in 2-wire mode (or enable 2-wire mode) and then the hybrid inverter, when it needs power, and there is no grid or solar it will start the generator remotely.

In this state a few things happen:

• I only have the T1 or 120v line installed feeding the 120v for the battery charger - curious if that is detectable? and if so can it be displayed on the screen in some way.
• I no longer have L1 & L2 from the grid feeding N1 & N2 so utility power is no longer tested or needed. (It would be nice to specify that I am running in the 2-wire mode and then no longer show the "utility voltage" because it is now going to be zero.
• • If T1 is available then maybe add T1 voltage instead
• • It might be possible to hook up N1 & N2 just to get this to display something, but not sure if that is really necessary
• Also when N1 & N2 are not installed:
• • On Status page: Line Utility Voltage, Max, Min Threshold Voltage really are not needed

If you would like more information on the 2-wire mode and my model please let me know I will share everything I can.

[jgyates]

Hi @MiddleSiggy

The battery charger relay status is reportable via modbus but only on the liquid cooled units. Air cooled units do not export the charger relay status. There is some experimental data on the charger current displayed if you enable "Display Unknown Sensors" on the setting page. This is data that is present in the modbus registers but I do not know the exact puprose but it shows my current / best guess at what the data could be.

I can potentially add a two wire mode that will disable showing some info. If you want to send me your registers and logs I can do some testing. I don't know if T1 is exported over modbus but your register data may shed some light on that.