BMW MINI Wallbox Essential, Руководство по установке

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The Wallbox receives all its current power from the power supply through meter 5 . This information
in combination with the value for the post-meter fuse 4 defined using the DIP switches enables the
Wallbox to control the charging current such that the maximum power consumption never exceeds the
post-meter fuse value.
Installation of external meters
The meter can be connected to the Wallbox Plus via RS485 (Modbus).
The installed meters must be connected with the same phase sequence as the Wallbox so that the
domestic load calculation can be performed correctly. If the Wallbox has to be connected starting with
phase 2 to ensure better division of the phase loads, the meters must also be connected starting with
phase 2.
Note
Detailed information on the meter installation is available in the installation instructions provided
by the meter manufacturer.
Note
The meter values may undergo a plausibility check after connection using the Wallbox web
interface. Information on the Wallbox web interface is provided in the operating manual for the
MINI Wallbox in the section headed "Configuration".
Meters with Modbus RTU (RS485) interface
Using this interface it is possible to operate multiple meters from different manufacturers on a single
bus. A separate cable is required from the Wallbox to the domestic installation for connection. The
advantage compared to network-capable Modbus TCP meters is the fact that it is not dependent
on additional infrastructure such as routers. This ensures high operational reliability if the cabling is
correct.
A detailed description of the connection of Modbus RTU meters via RS485 is provided in the section
RS485 connection X2 .
Note
The permitted fuse value must be set using the DIP switches in the connection area of the
Wallbox, see section DIP switch settings .
The current list of supported meters can be found on the BMW Service page for charging products at
https://charging.bmwgroup.com/web/wbdoc/ .
EN
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