Wallbox 22kW 32A Tree

The Loxone Wallbox is a charging station which enables dynamic charging from 4.1 kW to 22 kW for electric vehicles.

With the robust Tree interface, the device is fully integrated into the Loxone system, providing complete freedom for energy management. The pre-installed Loxone Energy Meter 3-Phase Tree allows precise measurement of electrical energy and seamless communication with the system. Optionally, devices such as the NFC Code Touch, Touch Pure Flex, etc., can be directly mounted on the Wallbox for setting the charging mode or executing other smart control functions.

Datasheet Wallbox 22kW 32A Tree

Mounting
Commissioning
Programming
LED Status
Charging Cable
Limiting charging power
Testing the Wallbox
Modbus Data Reading
Inputs, Outputs, Properties
Safety Instructions
Documents

Mounting↑

Attach the Wallbox vertically by screwing it onto a solid, even and closed surface.
Select screws and fastening material according to the surface.
Make sure that the mounting frame rests flush on the surface without any gaps.

After mounting, the supply voltage (mains voltage and 24V) is switched on, the Wallbox flashes orange after a short time if the connection to the Miniserver is successful and is ready for pairing.

Commissioning↑

Then follow the pairing procedure on the Tree Interface.

After pairing the Wallbox, right-click on the device and select "Show installed meter" to view the serial number of the associated energy meter:

The pre-installed energy meter can now be paired via serial number or Tree device search.

Programming↑

The Loxone Wallbox is programmed and set up using the Wallbox function block in Loxone Config:

After pairing the meter, the Meter Type "Wallbox" and the Wiring direction "Inverted (Top = Out)" must be selected.
The meter can then be dragged onto the Wallbox function block to link it:

LED Status↑

Status LED	Description
	Device has just been paired or has restarted and is now online.
	Connection to the Miniserver is okay, but the device has not been paired.
	Device cannot connect to the Miniserver via the Tree interface.
	Device was selected in Loxone Config and is identifying.
	Charging started.
	Charging paused.
	Charging Error.

Charging Cable↑

If it is necessary to replace the charging cable, this must be installed and tested by a specialist in accordance with national regulations.
For this purpose, a charging cable with the same properties must be used; this may also be shorter or longer (max. 7.5 meters).
Extending the charging cable in any other way is not permitted.

Limiting charging power↑

The Loxone Wallbox is able to limit the charging power by transmitting the permitted maximum current to the vehicle.

The following diagram shows the relationship between the specified target charging power (Tp) and the possible charging power:

The actual power achieved during charging is also dependent on the vehicle, the supply voltage, and the battery charge level. Therefore, it can be above or significantly below the target charging power.

Testing the Wallbox↑

Note on testing the Wallbox with EVSE Testers:
Due to the testing of the internal residual-current sensor, a waiting period of at least 10 seconds is required when switching from Position B (vehicle connected) to Position C (vehicle ready to charge). Also, charging power for the charging process must be authorised to the wallbox. Otherwise, an unknown charging error may occur.

Modbus Data Reading↑

Only the values that are actually sent to the Miniserver are displayed in the Modbus Monitor.

This means that only values that have changed are shown. The data is not displayed in the monitor with every polling cycle.

Actuators↑

Summary	Description
API Connector	Intelligent API based connector. API Commands

Diagnostic Inputs↑

Summary	Description	Unit	Value Range
Charging error	Reports a charging error.	-	0/1
Fault current	Reports a fault current.	-	0/1
Online Status Wallbox Tree	Indicates whether the device can be reached by the Miniserver. Diagnostics for Air devices Diagnostics for Tree devices Diagnostics for Extensions	Digital	0/1
System temperature	Provides the internal device temperature. This is often the temperature of the CPU or another location in the device.	°	∞

Properties↑

Summary	Description	Default Value
Monitor Online Status	If checked, you will be notified via System Status or the Mailer if the device is no longer available or goes offline.	-
Serial Number	Specifies the serial number of the device. Enter 'Auto' to automatically pair a Tree device with unknown serial number. This can only be used if there is only one Tree device of the same type. Save in the Miniserver to pair the Tree device. Afterwards the program must be loaded from the Miniserver to transfer the actual serial number of the Tree device into the program.	-

Safety Instructions↑

Installation must be carried out by a qualified electrician in accordance with the applicable regulations.

Only mount on a solid, even and closed surface.

The selection of conductor cross-sections and associated overcurrent protection devices is dictated by national and international standards and installation guidelines. This requires choosing a conductor cross-section suitable for the loads rated current, as well as considering the insulation material of the cable, method of installation, and ambient temperature.

Documents↑