I have a mobile installation in a van.
I have a DC/DC 12/48V charger that charges a pylontech lithium battery.
I also have a Multiplus II 48/3000, solar panels, and a cerbo GX.
To add some redundancy, I also have a Phoenix 12/1200 that feeds the Multiplus to charge the battery. (the DC/DC in some situations is not very reliable)
This was working perfectly, I had just to setup the multiplus to consider the AC input 1 as weak power to gently ramps the power demanded to the Phoenix (up to 800W +-).
For some reason, i had to exchange the Phoenix for a new one.
Now it doesn't work anymore. Here are the things I tried/tested/checked:
- the multiplus sees 235V at his input when the phoenix is on (checked via the cerbo GX)
- the phoenix is working as it should (tested with +- 600W resistive and 800W inductive load)
- tested many other things: set input as generator, shore, grid, grid feed in is disabled, set multiplus as charger only etc... nothing works.
- If I disconnect the phoenix and connect the grid to the multiplus, the green led ac blinks, the Multiplus starts and charge the battery .
I looks like the Multiplus is detecting that it's a Phoenix who is feeding him and refuses to start.
Are there any way Victron could disable this ?
Any other ideas ?
Here is the config of the phoenix: