Delta AC MAX Installation And Operation Manual page 20

Pin 2
Low
High
Low
High
Low
High
Low
High
Low
2.2.7 (Optional) ModBus RTU via RS485
To connect the wallbox with an external (Home) Energy Management System (H)EMS, connect two
communication wires to the RS485 terminal.
The default RS485 settings are 8N1
- Data bits: 8
- Parity bit: None
- Stop bit: 1
- Baud rate: 19200 Baud
Note: The Modbus settings can be changed via Bluetooth with the AC MAX App. The password to reach this setting
in the AC MAX App is: 0000
Pin 3 Pin 4
Low Low
Low Low
High Low
High Low
Low High
Low High
High High
High High
Low Low
20
Pin 5 Power limitation
Low Output 100% power
Low Output 87.5% power
Low Output 75% power
Low Output 62.5% power
Low Output 50% power
Low Output 37.5% power
Low Output 25% power
Low Output 12.5% power
High Stop charging
v1.0.3