Installation and Configuration Manual — KEBA KeContact P40 / P40 Pro

1. Introduction

1.1. Legal provisions

The information contained in these documents is the property of FENECON GmbH. Publication, in whole or in part, requires the written consent of FENECON GmbH.

Subject to changes and printing errors!

1.2. Qualification of the installing electrician

A qualified electrician is a person who has the necessary experience and training:

  • Setting up, switching on, switching off, disconnecting, short-circuiting and repairing circuits and devices

  • Standard maintenance and use of protective devices in accordance with current safety standards

  • First aid/emergency care

  • Current knowledge of local regulations, standards and guidelines

2. Product description

The FEMS App KEBA KeContact communicates with the FENECON Energy Management System via Modbus TCP/IP.

Please note that Modbus TCP/IP requires software version 1.2.0 or later.
This functionality has been tested and approved up to firmware version 1.3.0.

At the following KEBA Downloads & Updates eMobility website , you’ll find all software updates for the KEBA KeContact P40 / P40 Pro.

3. Commissioning

m002

To install the KEBA charging station, please follow the instructions in the "KeContact P40 / P40 Pro Charging Station Installation Manual."
Installation Manual — KEBA KeContact P40 / P40 Pro

This quick guide refers to the original user manuals.
It serves as an installation aid for qualified electricians in the area of communication interfaces, but is not a substitute for studying the user manuals.

Install the KEBA KeContact P40 / P40 Pro charging station according to the KEBA GmbH installation instructions.

Please note that the site conditions of KEBA GmbH apply.

Follow the instructions for the power supply for the KEBA KeContact P40 / P40 Pro charging station.

3.1. Ethernet connection

The KEBA KeContact P40 / P40 Pro series connects to the FENECON Energy Management System via the customer’s network using the LAN network interface (RJ45). Please follow the steps below.

Connect the RJ45 plug to the LAN network connection X3 provided on the KEBA KeContact P40.

ethernet X3
Image 1. Connection overview KEBA KeContact P40
ethernet lan
Image 2. Example of a network connection

In a network, IP addresses are typically assigned automatically via DHCP. In many cases, this is handled by the internet router, e. g. a router such as a FRITZ!Box. This can result in a loss of communication between FEMS and the charging station. To prevent this, a static IP address can be assigned.

3.2. Assigning an IP address via DHCP

Once connected to the customer’s network, the KEBA KeContact P40 / P40 Pro is assigned an IP address via DHCP. This IP address can be found in the DHCP server, e. g. the router. Alternatively, the IP address of your KEBA KeContact P40 / P40 Pro can be retrieved via the KEBA eMobility App.

4. Configuration

The KEBA KeContact P40 / P40 Pro series can only be set up via the KEBA eMobility App. Please download the KEBA eMobility App from the AppStore or Google PlayStore.
Table 1. Home page of the KEBA eMobility App
start app

  1. Open the KEBA eMobility App.

  2. Click the green "+" button to set up a new KEBA KeContact P40 / P40 Pro.
setup app

  1. There are three ways to establish a connection to the new KEBA KeContact P40 / P40 Pro using the KEBA eMobility App. The following section describes the setup process via Add via Setup Guide.
auswahl app

  1. Select the desired KEBA KeContact series — here: KEBA KeContact P40 / P40 Pro.

Please make sure that Bluetooth activated on your cell phone.
Stay close by throughout the entire pairing process.
Table 2. Example of a network connection
pairing app

  1. The Bluetooth pairing process will then start automatically.
pairing app 2

  1. You may see several KEBA KeContact P40 / P40 Pro devices listed in your vicinity.
    Identify your KEBA KeContact P40 / P40 Pro using the serial number.
    Click on Connect Wallbox.
pairing app 3

  1. Confirm "Pair with P40_serial number?".

  2. Enter the PIN (see back of KEBA KeContact P40 instructions).
Table 3. Setup for Installer Accounts
installer id

  1. Under "Select role", choose "Installer".

  2. Click on "Next".

  1. You will then be prompted to enter the serial number and the installer PIN (see the back of the KEBA KeContact P40 manual).
installer pairing

  1. Select your preferred connection. We recommend connecting via "LAN".

  2. Click on "Pair wallbox".

This setting applies only to the "User" access level. Installers do not select a preferred connection.
Table 4. Configuration of the KEBA KeContact P40 / P40 Pro
pairing success

  1. Once the connection is established, the KEBA KeContact P40 / P40 Pro must be restarted.
    To do this, press and hold the service button for 6 seconds.
konfiguration

  1. Then, enter the following …​

    • for Max. HW current, indicate the maximum current in Ampere.

    • for Nominal voltage, enter the voltage of the grid to which the charging station is connected.

    • for phase rotation, indicate the sequence of the phases (or supply lines).

    • Under Max. Asym. Current, specify the maximum current in A for asymmetric charging.
konfiguration 2

  1. Then click on "Save" in the top right-hand corner.
finish

  1. You’ve done it! You have successfully completed the electrical commissioning.
Table 5. Read out IP address via the KEBA eMobility App
ip address 1

  1. On the overview page, click the button.
ip address 2

  1. Select the "Settings" tab.
ip address 3

  1. On the settings page, click the "Show more" button.
ip address 4

  1. The IP address (here: LAN) is then displayed.

Please make a note of the assigned IP address. The IP address is required below to set up the FEMS App KEBA KeContact.

The FEMS App KEBA KeContact communicates with the FENECON Energy Management System via Modbus TCP/IP.

The FEMS App KEBA KeContact uses a Modbus TCP/IP interface.
For the KEBA KeContact P40 / P40 Pro charging station, the Modbus TCP register must be enabled in the advanced settings of your KEBA eMobility App.
Table 6. Enabling Modbus TCP
ip address 1

  1. On the overview page, click the icon:ellipsis-v button [role=black, set=fas].
ip address 2

  1. Select the "Settings" tab.
modbus 1

  1. Scroll to the bottom of the settings page. Click the "Show Advanced Settings" button.
modbus 2

  1. Select the " Modbus" tab.
modbus 3

  1. Set the slider to "ON" to "Enable" Modbus TCP on your KEBA KeContact P40 / P40 Pro.

4.1. Updating the charging station firmware

The latest software updates are automatically displayed when you open the KEBA eMobility App.

This feature has been tested and approved up to firmware version 1.3.0.
Table 7. Software update of the KEBA KeContact P40 / P40 Pro
update 1

  1. Click on "Update" in the Update available pop-up.
update 2

  1. Your KEBA KeContact P40 / P40 Pro starts the software update.
update 3

  1. Please follow the instructions.
update 4

  1. After successful installation, click on "Finish update."

  2. Your KEBA KeContact P40 / P40 Pro will then be restarted.

The configuration is now complete.

5. Install FEMS App KEBA KeContact

In the FEMS App Center you will find all installable FEMS Apps — such as the FEMS App KEBA KeContact.

The user manual FEMS App Center provides detailed instructions on how to use the FEMS App Center. It also explains how to register and redeem a license key.

Then follow the instructions in the FEMS App installation wizard on your KEBA KeContact P40 / P40 Pro.

5.1. Installation wizard

You will then be taken to the installation wizard for FEMS App KEBA KeContact.

Please select the correct series for your KEBA KeContact under Product series.
fems app 5
Image 3. App installation — Variant 2: Step 7

Please select "P40" under product range if you have a KEBA KeContact P40 / P40 Pro.

fems app auswahl
Image 4. App installation — Selecting the KEBA KeContact P40

Confirm your selection by clicking the "OK" button.

The installation wizard for the KEBA KeContact P40 / P40 Pro will then be displayed.

fems app 5 p40 k
Image 5. App installation — Variant 2: Step 7

Some of the input fields are pre-filled. Nevertheless, enter your data if it differs from the default values (e. g. IP address). Otherwise, the default values can be retained (e. g. port, Modbus unit ID).

Mandatory fields are marked with *
Check your entries and make sure that they are correct. Otherwise the respective app will not work properly!

In the next step, you can set a phase rotation.

Please note that phase rotation is only included from FEMS release 2024.11.2 or later.

The phase connection L1_L2_L3 is selected as standard.

fems app rotation p40
Image 6. App installation — Phase rotation: Step 1

If your phase connection differs from this, you can select a different phase connection using the drop-down button.

fems app rotation 2
Image 7. App installation — Phase rotation 2: Step 2

Confirm with "OK".

Then click on "Install app".

fems app 7 p40 k
Image 8. App installation — Variant 2: Step 8

Once the installation process is complete, the new app appears in the overview of the FEMS App Center in the "Installed" category.

The FEMS App KEBA KeContact has been successfully installed.

6. Phasenumschaltung bei der KEBA KeContact P40 / P40 Pro

Für die (automatische) Phasenumschaltung muss eine aktuelle FEMS Version (2026.10.1 aufwärts) installiert sein. Die neuen Funktionen werden weiter unten in dieser Anleitung erläutert.

Die (automatische) Phasenumschaltung ist nicht für die eichrechtskonforme KEBA KeContact P40 Dienstwagen-Wallbox verfügbar.

7. How to Use Installation and Configuration Manual — KEBA KeContact P40 / P40 Pro

7.1. Charging stating main window

A charging station is displayed in FEMS at Consumption.

Click or tap in the menu to open the main window for your charging station. This window displays various pieces of information, e. g. the current charging mode, charging power, etc.

Auswählen der Wallbox im Seitenmenü

Depending on the submenu item selected, the main window displays different information and settings:

Hauptfenster der Ladestation

The highlighted area below displays custom tasks (schedule).

In addition, the modes currently active — Base Mode and Active Mode — are displayed to the right of the charging station.

Table 8. Explanation — Basic Mode and Active Mode
chip menu base mode

The Base Mode can be set via the submenu item {charging-station-base-mode-xref}.
chip menu task scheduling

Active Mode can be set via the submenu item {charging-station-task-scheduling-xref}.

7.2. Forecast

Table 9. Explanation — Forecast
chip menu forecast

The main window for this menu item displays the forecast for your wallbox:
forecast chip main

7.3. History

Table 10. Explanation — History
chip menu history

The main window for this menu item displays the history for your wallbox:
history chip main

7.4. Energy limit

Table 11. Explanation — Energy limit
chip menu energy limit

Use this menu item to set an energy limit for charging your vehicle.
main energy limit slider 20 kWh

There is a slider for this in the corresponding main window.

  • Energy limit 0: The vehicle will continue charging without restriction until its battery is fully charged or Base Mode is set to Off.

  • Energy limit 20: The battery is charged up to a maximum of 20 kWh during each charging cycle.

etc.

Confirm the setting using the in the lower-right corner of the main window.

7.5. Schedule (Active Mode)

Klicken oder tippen Sie auf die Menüoption Zeitplan, um einen Aktiven Modus einzustellen.
Dieser Modus überschreibt den Grundmodus der Ladestation mit benutzerdefinierten Aufgaben.

Adding a task to the Schedule

In the main window, click or tap + ADD to create a new task.

Now you can configure settings for your task:

Einstellungen innerhalb der Aufgabe

Charging Mode
Select the desired charging mode for the task. The following options are available:

Auswahl des Lademodus innerhalb der Aufgabe
No charging

Completely disables the charging station.

Excess solar power with guaranteed charging

The PV Surplus with Guaranteed Charging mode guarantees a minimum charging status for the vehicle. If there is sufficient PV surplus, it is used. If there is no PV surplus, the vehicle is charged using grid withdrawal up to the minimum charging power.

Excess solar power

In PV Surplus mode, EV charging is dynamically adjusted to the excess electrical energy.

Fast charging

In Fast Charging mode, the vehicle charges as quickly as possible.

Wiederholung und Start-/Endzeiten
Stellen Sie dann den Wiederholungsintervall ein und definieren Sie eine Start- und Endzeit für die Aufgabe.

Using + ACCEPT saves the task and displays it in the overview of your charging station in the main window.

Edit Task
This main window displays your custom tasks (schedule).

Lademodus — Hauptfenster mit einem aktiven Lademodus
Image 9. Overview — Schedule with a created task

If you already have a task in the list, you can EDIT it to, e. g. adjust the time period or the charging mode during that time period.

Bearbeiten einer Aufgabe

Use ACCEPT to save your changes to the task.

Click/tap DELETE to delete the task.

7.6. Base mode

Click or tap the Base Mode menu item to open the following main window:

Grundmodus — Hauptfenster mit PV-Überschuss als Grundmodus
Image 10. Example — Overview — Base Modes
No charging

Completely disables the charging station.

Excess solar power

In PV Surplus mode, EV charging is dynamically adjusted to the excess electrical energy.

Excess solar power with guaranteed charging

The PV Surplus with Guaranteed Charging mode guarantees a minimum charging status for the vehicle. If there is sufficient PV surplus, it is used. If there is no PV surplus, the vehicle is charged using grid withdrawal up to the minimum charging power.

Fast charging

In Fast Charging mode, the vehicle charges as quickly as possible.

Confirm the setting using the in the lower-right corner of the main window.

7.7. App Center Vehicles

chip menu app center vehicles

Use this menu item to configure vehicle-specific settings.

The main window displays the settings for the Generic Vehicle app.

The Generic Vehicle app is automatically installed when you install FEMS App KEBA KeContact.

Generic Vehicle means:

  • The primary vehicle that is charged at this charging station by default.

  • We recommend that you provide the correct model name of the vehicle.

  • You can also define more than one vehicle.

The following settings are available for the connected Generic Vehicle:

main generic vehicle

Once you have made the desired changes, save them by clicking UPDATE APP.

These settings provide FEMS with more precise vehicle data, making the charging forecast for your vehicle more accurate. You can also enter your vehicle’s model name here so that it appears in the app.

7.8. Phase Switching

If a PV charging mode (PV Surplus or PV Surplus with guaranteed charging) is selected for your charging station, you can manually switch from 1-phase to 3-phase charging in the submenu using the Phase Switching option:
side menu phase switching

Tap or click the submenu item to access the following main screen.

The following options are available here:
phase switching main

7.8.1. Manual Phase Switching

phase switching main manual
Use Case

One scenario would be to use the limited PV production to charge the vehicle anyway by manually switching to single-phase charging.

Switching During Charging:
When manually switching from single-phase to three-phase and vice versa, the hardware undergoes a 30-second switching process each time.

  • Please wait during this switchover.

  • During these 30 seconds, the charging power is reduced to 0 kW, and then the switchover occurs.

  • When performing phase switching, vehicles behave differently depending on the model.

  • Your vehicle must support phase switching.

7.8.2. Automatic Phase Switching

In addition to the Manual Phase Switching (1- or 3-phase), there is the option of Automatic Phase Switching:

phase switching main automatic

The phases are automatically switched based on the charging power. This allows even a small amount of excess PV power to be utilized.

  • The Fast Charge mode always uses 3 phases.

  • Your vehicle must support dynamic phase switching.

  • The switching times depend on the wallbox and its internal logic.

  • The phase change may take a few minutes.

8. Communication failure between KEBA P40/P40 Pro and FEMS

Article updated: 24/09/2026

Currently, the log partition of the KEBA P40/P40 Pro may reach its capacity limit, which requires the wallbox to be restarted.

This applies in particular to systems in which the electric vehicle remains plugged in for an extended period and charging is paused, for example in OFF mode or PV Surplus mode when no PV surplus is currently available.

KEBA and FENECON are currently working on a solution to the issue.

We apologize for any inconvenience this may have caused.

Until KEBA provides a fix, only operating modes that guarantee a charge or a minimum charging current should be used. Operating modes that may pause charging for an extended period while the vehicle is connected should be avoided.

8.1. Fault pattern

  • Error message: Modbus Communication Failed.

  • The wallbox no longer responds to control commands.

  • Communication between FEMS and the wallbox is no longer possible.

  • A wallbox restart may only partially resolve the issue, and even then only temporarily.

  • In some cases, it is necessary to reset the wallbox to its factory settings.

8.2. Recommended interim solution

Until a compatible solution from KEBA and FENECON is available, we recommend configuring the following settings, depending on the version you have installed:

Set the Base Mode to PV Surplus with Guaranteed Charging or Fast Charging.

or:

If the mode is set to OFF or Manual, change it to Automatic with Guarantee Minimum Charging.

In both cases, the wallbox is prevented from operating at a charging current of 0 A for an extended period of time.

8.3. Restarting the wallbox

To restart the KEBA P40/P40 Pro, follow these steps:

  1. Stop the current charging process.

  2. Disconnect the vehicle from the wallbox.

  3. De-energize the KEBA P40/P40 Pro using the MCB or upstream main switch.

  4. Please wait 30 seconds.

  5. Turn the power back on.
    This will restart the wallbox.

8.4. Reset to factory settings

  1. Restart the KEBA P40/P40 Pro.

  2. Check to see if communication between FEMS and the wallbox has been restored.

  3. If the problem persists, reset the wallbox to its factory settings using the KEBA web interface or app, and perform the commissioning process again.