3 phase system with 3xMulti Plus, Tesla Model 3 3 phase charging, v2.1/5.2
The Charging Station will start even if there is not enough power available for 6A on 3 phases. For me it looks like the Charging Station assumes 1 phase. While ramping up, the dashboard shows charging 1P, than 2P, than 3P. As you see in the picture, the car is charging with 4,3 KW and thereof 2,4 KW is from the battery.
Allow battery/grid power for auto mode is set to “Disabled”
I checked the Modbus Registers 5055 and 5056, they are set to 0xffff (not documented).
Hello @ardiehl.
Current EVCS HW gives power to all 3 phases. Registers 5055-5059 are used for multi-phase charging but it is not the official behavior of EVCS and requires HW modifications(you can find posts in this community about that). That is why you see 0xffff there, it means those registers are not supported.
Your screenshot, in the left-bottom corner, shows the ‘Stop charging in’ 7s countdown timeout. EVCS recognizes no excess solar power and will stop charging after a timeout. EVCS trying to start charging to check if there is excess power available or not.