OEM Charging Solutions - FAQ

Quick answers to frequently asked questions about the ghostONE

You’ve asked us some interesting questions about the ghostONE and its related technologies. We have compiled the most important ones for you here. Take a look at the questions below and find the information you need in no time at all.

1. General information about the product

What are the differences between the BASIC, MID and ERK models?

The models differ in terms of whether they offer a MID-compliant electricity meter/a MID-compliant electricity meter and full compliance with German Calibration Law (Eichrecht), their socket/vehicle cable, and whether or not they are fitted with an LTE modem.

Note: The ghostONE platform has a modular and versatile design. Crossovers are possible in principle (e.g. ghostONE BASIC with additional LTE modem or ghostONE MID with socket outlet).

ghostONE BASIC (11 kW / 22 kW)

- Charging cable 4.5 m / 7 m
- Ethernet, WLAN, Modbus TCP (Master), EEBUS, OCPP 1.6, ISO15118-2, RFID, over-the-air updates

ghostONE MID (11 kW / 22 kW)

- All functions of the ghostONE BASIC with additional LTE
- modem & external MID-compliant electricity meter

ghostONE ERK (22 kW)

- All functions of the ghostONE BASIC, additional LTE modem & external MID-compliant electricity meter plus overall device compliance with German Calibration Law (Eichrecht)
- This model is not supplied with an attached cable (socket outlet + shutter)

Note: The ghostONE platform has a modular and versatile design. Crossovers are possible in principle (e.g. ghostONE BASIC with additional LTE modem or ghostONE MID with socket outlet).

Can the ghostONE wallbox be customised?

Yes, the ghostONE wallbox is exclusively offered to business partners as a white label solution.

The wallbox can be customised with company-specific branding (front panel & HMI cover).

Which interfaces and protocols are implemented and available?

The ghostONE wallbox offers the following network interfaces:

LAN (RJ45) – 10 / 100 Base-TX
WLAN client/hotspot (possible at same time)

- 5 GHz (802.11a, n, ac)
- 2.4 GHz (802.11b, g, n)

LTE & GSM (optional for the ghostONE BASIC model)
Modbus TCP (master)

The wallbox supports the following communication protocols:

OCPP 1.6
ISO15118-2
EEBUS

What charging capacities are possible with the ghostONE wallbox?

The ghostONE models BASIC & MID are available with a maximum charging power of 11 kW or 22 kW as standard, the ghostONE ERK model is only available with 22 kW.

It is possible to set the maximum charging current and by extension the maximum charging power through the device. This may be necessary if there isn't sufficient power input for a 22 kW wallbox or if the grid operator doesn't permit the operation of a 22 kW wallbox.

How many charging points are available per ghostONE wallbox?

Each device has one charging point.

Is the wallbox protected against unauthorised use by third parties?

Yes, the ghostONE wallbox offers several access control options:

RFID
The charging process only starts after authentication via RFID chip directly at the wallbox. The chip is initially registered locally or via OCPP for your own individual wallbox (e.g. private use) or for a charging site (e.g. at company premises).

Autocharge (ISO15118)
Authentication via charging cable: The wallbox exchanges information with the vehicle (which has a unique MAC address). If the vehicle has been pre-authorised for a charging process at the wallbox via its MAC address, authentication takes place automatically and the vehicle starts charging without the need for authorisation via RFID. (This is currently only possible with certain vehicles)

Plug & Charge (ISO15118)
This is similar to Autocharge, but the information required for authentication is encrypted and intelligently exchanged between the vehicle and wallbox via certificates. All that is required for this is that the vehicle supports communication as per the ISO15118 standard. The wallbox supports all aspects of this standard. (This is currently only possible with certain vehicles)

What weather conditions is the ghostONE wallbox designed for?

The ghostONE wallbox can be used at temperatures ranging from -30 °C to +45 °C (ghostONE BASIC) / -25 °C to +45 °C (ghostONE MID & ERK) as well as in rain and wet conditions. The wallbox's IP55 protection rating ensures safe, fixed operation for both indoor and outdoor environments. Its IK10 rating means that it is also equipped to withstand external mechanical stresses.

What material is the ghostONE wallbox made of?

The housing of the ghostONE wallbox is made of robust polycarbonate.

What are the dimensions (HxWxD) of the ghostONE wallbox?

ghostONE BASIC & MID: 384 mm x 384 mm x 181 mm

ghostONE ERK: 384 mm x 384 mm x 202 mm

What does the ghostONE wallbox weigh?

ghostONE BASIC: 3,15 kg

ghostONE MID: 3,57 kg

ghostONE ERK: 3,99 kg

How long is the charging cable?

The ghostONE wallboxes (BASIC & MID) are available with cable lengths of 4.5 m or 7 m as standard.

What type of vehicle connector does the ghostONE wallbox charging cable come with?

The ghostONE wallboxes with attached vehicle cable (BASIC & MID) are supplied with a Type 2 charging connector in accordance with the DIN EN 62196-2 standard.

Which vehicles can be charged using a ghostONE wallbox?

All standard electric vehicles that have a standardised Type 2 charging socket compliant with IEC 62196-2 can be charged via a ghostONE wallbox.

Is the ghostONE wallbox able to receive software updates?

Updates can be installed via an update server (over-the-air), the local network or via OCPP. Updates via server can be downloaded and installed automatically or after the user’s authorisation.

Is the wallbox eligible for subsidies?

The ghostONE wallbox fulfils the criteria for the current German KfW 442 subsidy “Solar Power for Electric Cars.

We are also happy to check eligibility for subsidies in other countries where such subsidies are currently available.

Does the ghostONE wallbox support both single-phase and three-phase operation?

Yes, the ghostONE wallbox can be connected to both single-phase and three-phase power when installed and can also be operated using both (only single-phase for IT systems).

Does the wallbox feature an energy-saving?

The wallbox includes an energy-saving mode.

Can the ghostONE wallbox be integrated into a home energy management system (HEMS)?

Yes, energy management with an external HEMS using the EEBUS protocol is possible: In such cases, the wallbox is connected via IP to a third-party HEMS (home energy management system) that supports the relevant EEBUS use cases.

Can the wallbox also be used without an Ethernet cable connection?

Yes, a network connection can also be established via WLAN and, in the case of the ghostONE MID and ERK models, via LTE. Operation without a network connection is also possible if the charging authorisation process is configured in such a way that a charging authorisation via a remote station in a network (e.g. via OCPP) is not required.

Does the wallbox include an automatic phase switching feature?

This feature will be offered with a new hardware option in the future.

2. Installation

Which upstream residual current circuit breaker (RCD) is required?

The ghostONE wallbox requires an external residual current circuit breaker (at least RCD Type A). A residual direct current detecting device (RCD-DD) (6 mA) compliant with IEC 62955 is already integrated in the wallbox.

What should the electrical load be for a charging station?

A qualified professional must be used to ensure that the rated voltage and current of the wallbox comply with the specifications for the local power grid and that the rated power is not exceeded during the charging process.

Is an installation kit included with the ghostONE wallbox?

All the components required to install the ghostONE wallbox are included in the scope of delivery. The installer only needs to select and provide suitable wall plugs for the mounting surface.

Where can I find the assembly and installation instructions?

The assembly and installation instructions (directed at a qualified professional) are included in the scope of delivery, but can also be downloaded online via the following link if needed:

Link coming soon

How do you specify the ghostONE wallbox's single-phase or three-phase connection during installation?

This is done by a qualified installer using a DIP switch on the device.

What type of Ethernet cable should be used?

Ethernet RJ45 Cat. 5/6/7

Why is there extra installation kit left over after installation?

The scope of delivery may contain more screws than are necessary for the installation. This gives the installer the option of using extra screws if necessary.

Why is the wallbox showing an error after installation?

This could be due to an incorrectly set DIP switch and/or rotary switch.

Where can I find the access details for the ghostONE wallbox?

An envelope containing the access details is enclosed with the ghostONE wallbox. This contains all the relevant information needed to configure the device after installation.

How can I access the web app and how do I log in to the ghostONE wallbox via the web app to complete the service configuration?

Via WLAN hotspot

Have the access details ready
Search for available WLAN devices on your laptop, tablet or smartphone.
From your list of available WLAN devices, select the wallbox with the WLAN identifier (SSID) shown in the access details document.
Establish a connection with the selected wallbox.
Enter the wallbox's WLAN password (network key) from the access details document.
Open the web browser once the connection has been successfully established.
Enter the host name of the wallbox from the access details document into the address bar. If the web app doesn't open, enter the IP address of the wallbox 10.0.2.1 in the web browser instead of the host name.
The web app displays a login screen with the option to log in.
Select the Service User option on the login screen, enter the corresponding password and confirm. Once you have successfully logged in, you can carry out the service configuration.

Why does my browser display a security warning when I open the web app?

When accessing the web app, the browser may display a warning indicating that the page is considered a security risk or that a secure connection cannot be established. This warning is browser-dependent and has nothing to do with the wallbox not having the required security features. Depending on the browser, access to the web app can be authorised by clicking on the 'Advanced' button, and then on a further button or link.

3. Operation

Where can I find the user guide for the ghostONE?

Two documents are relevant for end users:

The quick start guide (included in the scope of delivery and available online) and the operating instructions (available online): Link coming soon
The quick start guide also includes a QR code that links to the above-mentioned website and guarantees quick access to all key documents.

After installation or resetting to factory settings, the ghostONE wallbox goes into "free-charging mode" (vehicle charging without authentication). What does this mean and why don't I have to authorise the charging process via RFID card or the web app?

Charging the vehicle without authentication (free charging) is the default factory setting so that users can easily start charging their vehicle as soon as the ghostONE wallbox has been successfully installed. No authorisation is required.

If the user wants to restrict access to the ghostONE wallbox and register an RFID chip, this can be done in just a few steps via the web app:

In the web app, go to the Vehicle Management menu and select the authorisation list.
Deactivate the free charging option.
Select “Add RFID chip”.
Hold the supplied RFID chip to the RFID sensor on the front panel of the wallbox.
Wait for the RFID chip to be recognised. Upon successful recognition, a beep tone is emitted and the RFID LED lights up green for a short time.

How can I access the web app and how do I log in to the ghostONE wallbox?

Via the wallbox’s WLAN hotspot

Have the access details ready
Search for available WLAN devices on your laptop, tablet or smartphone.
From your list of available WLAN devices, select the wallbox with the WLAN identifier (SSID) shown in the access details document.
Establish a connection with the selected wallbox.
Enter the wallbox's WLAN password (network key) from the access details document.
Open the web browser once the connection has been successfully established.
Enter the host name of the wallbox from the access details document into the address bar. If the web app doesn't open, enter the IP address of the wallbox 10.0.2.1 in the web browser instead of the host name.
The web app displays a login screen with the option to log in.
Select the Service User or Standard User option on the login screen, enter the corresponding password and confirm. Upon logging in, an overview is displayed.

Alternative Ethernet option:

Connect the Ethernet cable to a network switch or server.
Check the network settings and adjust if necessary. The wallbox is set to DHCP (automatic IP address assignment) as default.
Open the browser once the connection has been successfully established.
Enter the host name of the wallbox from the access details document into the address bar. If the web app doesn't open, enter the IP address of the wallbox 10.0.1.30 in the web browser instead of the host name.
The web app displays a login screen with the option to log in.
Select the Service User option on the login screen, enter the corresponding password and confirm. Upon logging in, an overview is displayed.

Note
As soon as the end device you want to access the wallbox from is on the same network as the wallbox, the web app can be easily opened via the web browser.

Why does my browser display a security warning when I open the web app?

Where and how can I register RFID chips/cards?

If the user wants to restrict access to the ghostONE wallbox locally and register an RFID chip, this can be done in just a few steps via the web app:

In the web app/mobile app, go to the Vehicle Management menu and select the authorisation list.
Deactivate the free charging option.
Select “Add RFID chip”.
Hold the supplied RFID chip to the RFID sensor on the front panel of the wallbox.
Wait for the RFID chip to be recognised. Upon successful recognition, a beep tone is emitted and the RFID LED lights up green for a short time.

Which RFID cards/RFID tags are compatible?

The ghostONE wallbox supports all RFID chips/cards with NFC Forum Modes 1-5.

How many RFID cards can be assigned?

The local authorisation list is designed for up to 1,000 individual entries.

How can I see whether a charging process has successfully started or finished?

The ghostONE wallbox has various LEDs on the front panel that communicate different statuses to the user in a straightforward way. For example, if a charging process has successfully started, the charging LED starts pulsing green. When the charging process is complete or the vehicle is fully charged, the charging LED lights up and stays green.

Further statuses and information can be found in the web app.

What does the button on the front panel do?

You can use the button on the front panel to do two things: exit energy-saving mode and perform a soft reset by pressing it for 8 seconds.

Can I set the maximum charging current of the ghostONE wallbox via the web app?

Only a qualified professional can set the maximum charging current on the device, both during installation and afterwards. However, the user has the option of manually adjusting the preset maximum available charging power via the web app.

Can the charging levels be adjusted?

The charging levels can be adjusted in increments of < 1 ampere (A).

Is it possible to permanently lock the charging cable for models with a socket?

Yes.

What happens to the connector lock during a power failure?

The ghostONE wallbox provides the option of using the Web app to set whether automatic unlocking is to take place in the event of a power failure.

What happens if the wallbox overheats or overloads during the charging process?

If the ghostONE wallbox is exposed to excessively high temperatures, the charging current is dynamically reduced (derated) depending on the temperature.

Does the charging station restart after a DC error has been detected?

No, there isn't an automatic restart. The RCD DC error can be reset by pressing the button on the front panel for 8 seconds or by unplugging the vehicle connector.

4. OCPP

What is OCPP and what advantages does it offer?

The “Open Charge Point Protocol” is an open communication standard published by the standardisation organisation Open Charge Alliance (OCA) and has been specifically developed for communication between electric vehicle charging stations and backends. It enables the exchange of data and commands between charging stations and OCPP backends regardless of the manufacturer and model, which promotes interoperability and scalability in the field of electromobility.

Why is backend integration necessary?

Backend integration of a wallbox via the OCPP protocol 1.6j offers a number of advantages for electric vehicle charging. Integration allows charging processes to be controlled and monitored remotely. And it enables load management to be controlled centrally, which optimises capacity utilisation and thereby eases the load on the power grid. Billing and the billing system can also be simplified and automated through integration. Integration also enables the wallbox to be monitored and analysed so that faults can be quickly identified and rectified. On the whole, the backend integration of wallboxes via OCPP 1.6j offers a range of functions that make the operation of electric vehicles more efficient and user-friendly.

Which version of the OCPP protocol does the ghostONE wallbox support?

OCPP 1.6j

Which backend connection options does the ghostONE wallbox offer?

The ghostONE wallbox can be connected to an OCPP backend in different ways:

LAN connection (Ethernet) via a router: The wallbox is connected to the OCPP backend via Ethernet using a router.
WLAN connection: The wallbox is connected to the OCPP backend via a WLAN connection using a router.
Mobile network connection (LTE): The wallbox is connected to the OCPP backend via a mobile network connection. This option is often used for public charging stations.

Which OCPP backends are compatible with the ghostONE?

The ghostONE wallbox hasn't been tested with all OCPP backends available on the market. The following list gives an overview of the systems that have already been successfully integrated.

Grid & Co
vCharM
ChargeIQ

As a charging system manufacturer, we are always keen to integrate the product into new OCPP backends and thereby offer users maximum added value. If a system isn’t included, please get in touch with us.

What data is exchanged between the wallbox and a service provider via OCPP?

The ghostONE wallbox can share various data with a service provider via OCPP, including status and charging process data, billing data, error messages and configuration data.