Alfen Eve Pro EV chargepoint interface via TCP modbus

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You can use these scripts to set the charger to 1 phase or 3 phases via HA.
Note that you need to enable the option (only once) to change between 1 and 3 phases via the ACE Service Installer.

set_charger_to_1_phase:
  alias: "laadpaal - zet op 1 fase"
  sequence:
  - service: modbus.write_register
    data:
      address: 1215
      unit: 1
      hub: laadpaal
      value: 1

set_charger_to_3_phases:
  alias: "laadpaal - zet op 3 fases"
  sequence:
  - service: modbus.write_register
    data:
      address: 1215
      unit: 1
      hub: laadpaal
      value: 3

Here are some combinations of the Ampere and the 1 or 3 phases.
1 phase
6 A = 1,3 kW
7 A = 1,5 kW
8 A = 1,8 kW
9 A = 2,0 kW
10 A = 2,2 kW
11 A = 2,4 kW
12 A = 2,6 kW
13 A = 2,8 kW
14 A = 3,1 kW

3 phases
6 A = 4,1 kW
7 A = 4,8 kW
8 A = 5,5 kW
9 A = 6,2 kW
10 A = 6,9 kW
11 A = 7,6 kW
12 A = 8,5 kW
13 A = 9,2 kW
14 A = 9,9 kW

I think I will make a slider to select the W and then use this as a variable in a script to set the A and phases.
eg. if chosen W is between 1,3 and 3,1 then it’s only 1 phase and formula to define the A is
A = 6 + (W - 1.3) / 0.2
eg. if chosen W is between 4.1 and 9,9 W then 3 phases should be used and formula to define the A is
A = 6 + (W - 4.1) / 0.3

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