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Which charging station (e-, b-, c- or x-series) should I order?
The choice of charging station depends on the purpose. More detailed information is available on the KEBA website under http://www.keba.com/en/emobility/products/product-overview/product_overview.
How do I know which charging station I have and what the charging station is equipped with (for example, DC fault detection, energy meter, WLAN, RFID)?
The charging station type and its features can be derived from the product
name. The “Installation Manual” describes how to derive this information. The
product designation (Example: KC-P30- ES240032-000-xx) is found on the
What is the anticipated charging power per vehicle?
Depending on the vehicle model, charging with a maximum power of 22 kW (32 A) is possible. The charging power is shown in the technical data of the
Are periodic system tests required?
Periodic system tests must be conducted in accordance with local regulations.
Installation and dimensioning (8)
Which upstream residual-current device (FI/RCD) do I need?
P30 With DC fault detection: A FI/RCD Type A is sufficient.
P20: It should be a FI/RCD Type B or a FI/RCD Type A with DC fault detection
and 6 mA DC tripping current.
How must the upstream line circuit breaker be dimensioned?
The line circuit breaker selected should be one level higher than the maximum current value set via the DIP switches. The information in the "Installation Manual" must be observed.
Example: With a DIP switch setting of 16 A, a line circuit breaker with 20 A can be used.
What is the required connected load per charging station?
For the connected load, there is no defined value but it is dependent on the available connected load. For each charging station, the connected load
may be max. 32 A. The maximum permissible current (10 A, 13 A, 16 A, 20
A, 25 A, 32 A) is configured via the DIP switches in the housing.
What should I do if the power supply terminals cannot be opened?
To open the power supply terminal, a screwdriver with the following properties is required:
- Flathead screwdriver
- Blade length: front of at least 3 cm bare blade (no plastic covering)
- Blade width: 4 - 5.5 mm (3/16'')
To open the power supply terminal, proceed as follows:
Risk of breaking the power supply terminal!
Do not press the screwdriver up, down or to the side in the power supply
- Insert the screwdriver into the power supply terminal as shown.
- Using moderate force, press the screwdriver straight into the power supply terminal until the contact opens. The angle of the screwdriver
changes while pressing in.
Are there options for controlling the charging current?
- Enable input [X1] to activate or deactivate the charging process
- Smarthome Interface (UDP), e.g. Loxone, Cohere, Smartfox
- Local charging management with P30 x-series
- For connection to an OCPP backend: Specification by the OCPP backend
What must be observed for installation in a (underground) garage?
- Official requirements
- Fire service regulations (ventilation systems, emergency shut-off devices)
- When using GSM, check the signal strength in advance
- When laying power supply cables and network cables, steel conduit
pipes should be used for surface installation (sabotage-proof)
Are there any additional installation options?
Yes, on a column base. The information in the corresponding installation instructions must be observed.
When is the system ready for operation?
The charging station is ready for use if at least the left 3 segments of the
LED bar are flashing.
Energy display (c and x series) (3)
When is the charged power shown on the display?
Following a charging session, the energy of the completed charging session
is displayed. When starting up the device, the total energy output of the
charging station is displayed.
Can the power display be deactivated or permanently displayed?
Does the charging station have a calibrated meter (MID certification)?
Certain variants of the c- and x-series have a calibrated meter. Whether the
charging station has a calibrated meter can be determined by the product name. The “User’s Manual” describes how to determine this information from the product designation. The product designation is shown on the type plate.
DC fault detection (DC fault current monitoring) (5)
Can I disable the DC fault detection?
No. DC fault detection is a safety-related feature and can not be disabled.
Can the triggering current of DC fault detection be set?
No, the value is fixed in the P30 with a maximum of 6 mA tripping current.
Does the charging station restart after a detected DC fault and how often?
If a DC fault has been detected, the P30 attempts to restart up to 5 times
What happens after the restart (auto-recovery)?
If the restart (auto-recovery) was unsuccessful, the vehicle must be disconnected.
How can the DC fault detection be checked during the initial commissioning?
The charging station has an initial start-up mode. In this mode, a check with
a corresponding vehicle simulator or a suitable test device is possible.
RFID (teaching) (3)
Which RFID cards/RFID tags am I allowed to use?
RFID cards / RFID tags according to ISO 14443 and ISO 15693
Why is my RFID card not recognized?
An incorrect format was used.
The RFID card is not in the local whitelist. For the RFID card to be recognized, it must be taught in.
Charging network (x-series): The RFID card must be taught in at the master charging station.
Single charging station (c-series): The RFID card must be taught in directly at the charging station.
For connection to an external OCPP backend: The RFID card is not in
the whitelist of the OCPP backend. For the RFID card to be recognized,
it must be stored on the OCPP backend.
How many RFID cards can be taught in on a P20 or P30?
P20 and P30 b- and c-series: up to 20 RFID cards
P30 x-series: up to 1,024 RFID cards
P30 x-series with connection to an OCPP backend: unlimited
Access web interface (MAC address / IP address) (4)
Where can I see the MAC address?
In the web interface of the charging station
How can I set the IP address?
P30 b- and c-series without network connection: If the charging station is not in any network, the IP address can be set permanently via the DIP
switches (see "Installation Manual"). The charging station can be assigned
an IP address in the range of 192.168.25.11 to 192.168.25.26.
P30 c-series with network connection: If the charging station is located in
a network (master/client network), the IP address is assigned automatically
by the router or by the master charging station (x-series with activated DHCP
server). When assigned by the master charging station, the IP address can
not be changed. When assigned by the router, the IP address can be
changed in the user interface of the router. This is done by assigning the desired
IP address to the MAC address of the respective charging station.
P30 x-series with connection to a router: If the charging station is connected
to a router, the IP address is assigned by the router automatically.
The IP address can be changed in the router's user interface by assigning
the desired IP address to the charging station's MAC address.
P30 x-series with activated DHCP server: If the local DHCP server of the
charging station has been activated, the charging station automatically receives
the IP address 192.168.42.1. This IP address can not be changed.
Where can I see the IP address?
P30 c- and x-series: On the display when starting up the charging station
P30 c- and x-series with network connection: If the charging station is located
in a network (master/client network), the IP address is displayed in the
web interface of the master charging station.
How can the IP addresses of clients be determined?
P30 c-series: On the display when starting up the charging station
P20: On the external router or with suitable scan programs.
Software update (5)
With a software update, both the software and the firmware of the charging
station are updated. All P20 and P30 charging stations have a firmware. The
P30 x-series has a firmware and an additional software.
It is recommended to download the most-recent software for the charging
station. A new software can take into account modified standards or improve
the compatibility with new electric vehicles, for example.
Where can I find the most-recent software version?
P20 and P30 e-, b- and c-series: The current firmware version is visible in
the simplified web interface.
P30 x-series: The current firmware and software version can be seen in the
LED display when starting the charging station
The currently installed firmware version is briefly displayed when the charging
station starts indicated a color code on the 4 segments of the LED bar.
The major version is indicated by the color of the first segment (S1). The minor
version is displayed over the remaining three LED segments (S2, S3,
Each segment on the LED bar has a specific significance:
Each displayed color has a specific significance:
To calculate the firmware version, the significance of the LED segment must
first be multiplied by the significance of the color. Then, to calculate the subversion,
the obtained results of S2, S3 and S4 must be summed.
|Major version||Minor version|
|Significance of the LED segment||1||4|
|Significance of the color||3||1|
|Result (LED segment x color)||3||4|
The firmware version of the charging station is: 3.07
Where do I find the software updates?
Software updates can be found in the download area on the KEBA website:
Manuals, software, downloads
How can I tell whether or not the update is suitable for my charging station?
Based on the product type and the equipment series you can compare which
updates are suitable on the download page. Product type and equipment series
can be determined by the product name on the type plate.
Example: KC-[***]- ES2400[*]2-000-xx
How are software updates performed?
P20 and P30 e-, b-, c-series without network connection: A description of
how to perform the firmware update is included with the update file.
P20 and P30c-series with network connection (client charging station):
The software update is carried out at the master charging station. The master
charging station passes on the update to the connected client charging
P30 x-series: To bring the software of the charging station up to date, a software
update in the form of a *.keb file is required. The software update can
be done with a USB stick, via LAN or via the web interface. With a software
update, both the software and the firmware of the charging station are updated.
The power supply may not be interrupted during the software update!
This can lead to the destruction of the software on the charging station and
thus make further operation impossible.
The software update can take up to an hour. The update process is indicated
by a slow orange flashing of the LED bar.
After the software update, the charging station restarts automatically. The
LED bar will flash blue or green, depending on the authorization setting.
Software update via USB stick (P30 x-series)
To perform a software update via a USB stick, the following steps are necessary:
- Download the current software for the charging station (* .keb file).
- Plug the USB stick into a PC.
- Format the USB stick with FAT32.
- Create a new directory on the USB stick with the name "UPD".
- Copy the downloaded *.keb file into the "UPD" directory.
- DConnect the USB stick to the USB interface of the charging station. The
update starts automatically.
Software update via web interface (P30 x-series)
To perform a software update via the web interface, the following steps are
- Download the current software for the charging station (* .keb file).
- Log into the web interface of the charging station.
- In the menu bar under "System" select the item "Software Update".
- Upload the current software using the "Choose a file ..." button.
- Start the update process with the "Upload & Install" button.
Software update via OCPP backend (P30 x-series)
A software update via an OCPP backend requires an FTP link. For details on using the FTP link, contact the provider of the OCPP backend.
Log file (1)
How can I download the log file?
Depending on the device version, the log file can be downloaded in the following ways:
- Via the web interface
- With an empty USB stick (x-series only): For downloading, the USB stick
must be connected to the charging station. After this, the log files are automatically
loaded onto the USB stick. When the download is complete,
the charging station indicates that the USB stick can be removed.
Network (x-series) (5)
Why do some charging stations have two Ethernet connections?
The Ethernet1 connector [X4] (LSA+) is intended for hardwired Ethernet
The Ethernet2 connector [X3] (RJ45) is for debugging purposes only.
The Ethernet1 connection [X4] and Ethernet2 connection [X3] are connected in parallel on the circuit board and cannot be used at the same time!
The connection that is not used must be unplugged.
Can the charging station be integrated into a network with DHCP server?
Yes, you have to deactivate the local DHCP server of the P30 x-series via
the configuration. The P30 is then assigned an IP address by an external
How do I activate the local DHCP server?
With a P30 x-series, the internal DHCP server can be activated via a configuration
file with the parameter "localDHCPserver = true" or in the web interface.
After restarting the system, all cleints are re-assigned the same IP address
with the network ID 192.168.42.xx.
What are the options for an OCPP backend connection?
- External router (LAN/WLAN) with DHCP
- Mobile network (GSM 3G)
Which IP addresses may be assigned to the charging station?
The IP address range of an external DHCP server is not permitted to be
192.168.25.xxx as the charging station uses the internal IP address
192.168.25.1 and there would be an IP conflict.
GSM (x-series) (5)
Can an external GSM antenna be used?
No, it is not possible to use an external aerial. In case of poor mobile radio
reception, an external router should be used.
No, it is not possible to use an external aerial. In case of poor mobile radio reception, an external router should be used.
- Check the signal strength
- Data volume
- Enable the required ports
Which SIM card type is to be used?
Mini SIM card, ISO/IEC 7810:2003, ID-000, 25.0 x 15.0 x 0.76 mm
Can GSM and LAN be used simultaneously?
Yes, GSM and LAN (LSA+) can be used simultaneously if: On the LAN network
there may be a switch or a router with deactivated DHCP server to
avoid conflicts with the DHCP server of the GSM modem.
What APN information do I need from the provider?
- Username and password
- PIN for the SIM card
WLAN (x-series) (1)
Where can I find the password for the WLAN access point (WLAN hotspot)?
The password and the IP address of the WLAN access point are listed on
the configuration label. The configuration label is in a pouch which is enclosed with the mounting material. The password can be changed in the web
Local charging network (x-series) (9)
The following figure shows an example of a local charging network with optional connection to an external OCPP backend.
|1 ... Local charging network||2 ... Router/Switch|
|3 ... Master charging station (P30 x-series)||4 ... Client charging station (P20/P30 c-series)|
|5 ... Internet||6 ... OCPP backend|
Can I operate a local charging network?
Yes, with a P30 x-series, you can locally control up to 15 charging stations of
the type P20 c-series or P30 c-series. For details, refer to the "P30 x-series
Is an external charging network possible?
Yes, an external charging network can be realized via UDP and/or OCPP.
How do I know if the charging station is connected to the OCPP backend?
On the master charging station, all 4 segments of the LED bar flash blue.
The requirement is that the DIP switch 2.5 has been set to ON.
When do 3 or 4 segments of the LED bar flash?
3 segments of the LED bar are flashing: Master and client are ready for operation
but not connected to the OCPP backend.
4 segments of the LED bar are flashing: Master and client are ready for operation
and connected to the OCPP backend.
The requirement is that the DIP switch 2.5 has been set to ON.
Am I permitted to control a master charging station via UDP?
What is the anticipated data volume?
The data volume for communication via OCPP 1.5 SOAP is between 10 and
50 MB per month. The amount of data depends on the number of charging
Which parameters are required for commissioning?
- Total current of the system
For connection to an OCPP backend:
- OCPP URL
- APN data of the provider
- Port for incoming and outgoing communication
- OCPP URL
What factors should be considered when dimensioning a local charging network?
- Parallel charging
- Charging duration
- Charging power
- Connected load for the entire system
Master / Client (x-series) (3)
Is it possible to connect a master charging station and a client charging station via direct cabling?
One master charging station and one client charging station can be directly connected via the Ethernet1 connector (LSA+). The corresponding connection cable must not be crossed. In this case the Ethernet2 connector (RJ45), which is used for debugging purposes, can not be used any more.
A master charging station and multiple client charging stations must always be connected via a router or switch.
How do I tell when a client is connected to the master?
- In the web interface
- On the LED bar
- Without OCPP connection: On the client charging station, the left 3 segments of the LED bar will blink green or blink blue if authorization is required.
- With OCPP connection: On the client charging station, all 4 segments of the LED bar flash green or blink blue if authorization is required.
How many client charging stations can I connect to a master charging station?
Up to 15 client charging stations in a local charging network can be connected
to a master charging station.
Router / Switch (x-series) (4)
Which router/switches can be used?
How should be the router/switches be configured?
Information about this can be found in the configuration manual of the router/
What must be observed when using a router?
Port forwarding must be activated.
Am I permitted to attach two master charging stations with activated internal DHCP server to the same switch?
No. The use of two master charging stations in the same network is only permitted if an external DHCP server is used (DHCP function of both master deactivated).
Which USB sticks can I use for the configuration?
All USB sticks that are formatted with FAT32 can be used.
For further information, please refer to the "P30 x-series Configuration Manual".
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