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Tablef Contents

Table of Contents

Etrel INCH DUO charging station has been designed and tested in accordance with current and past versions of international standards. The charging station is compliant with IEC 61851 (Part 1, Part 21-2, Part 22) international standards which defines conductive AC electric vehicle charging and supports Mode 3 charging for safe recharging of standard electric vehicles.

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Preparation of charging station installation site and installation are described in separate documents. In this document it is predisposed that charging station is installed properly and already working.

General Information

Intended Use

Note

Etrel INCH DUO charging station is intended only for charging of electric vehicles and should not be used to charge other appliances or for any other purpose.

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Different types of charging connectors and converters are available as a part of optional equipment to allow safe charging of any standard electric vehicle.

Safety Information

Operation

The device must be used in accordance with the instructions contained in this manual.

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When the charging station without integral overcurrent device is installed, the proper overcurrent device should be installed in the main electrical cabinet.

Irregularity or Interference at Operation

In the event of irregularities or interference in the operation of the device, immediately stop using the charging station and inform the charging station operator of the situation by phone number located on the housing or other place.

Maintenance

Charging station can be maintained and repaired by qualified personnel only.

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Avoid hazardous risks. Only the manufacturer, an authorized service technician, or technically qualified personnel may replace damaged charging station or its components.

Fire Safety Measures

At the location of car charging, the fire hazards and thus the threats are increased during the process of charging. The overall design of our products is made on the basis assumption that the fault could occur on any element of the system. Either in the electrical wiring of power supply, in wiring or inside of the charging station, or in the car.

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Provision of suitable portable fire extinguisher at the location of the charging station is proposed.

Firefighting Measures

CHARGING STATION FIRE

In the event of a charging fire, the usual rules in the event of an electrical cabinet fire apply. In case of fire please follow these steps:

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The following is general information obtained from various sources. For detailed instructions on extinguishing fires of electric vehicles or their batteries, fire brigade have appropriate procedures already established.

Vehicle Fire

Vehicles, made of light metal, such as magnesium or aluminium, develop high temperatures above 1000 °C when burning. When extinguished with water such a high temperature evaporates it and can cause burning particles of distinctly white colour and high temperatures to fly around the vehicle. Extinguishing such vehicles requires great care in forming the water jet and in the amount of water.

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If firefighters are at the scene of a fire in less than half an hour, the battery usually does not ignite yet and the vehicle can be extinguished easier, and all extinguishing agents can be used. The general recommendations are mainly to use water and foam.

Battery Fire

In general, battery manufacturers, regardless of the type of battery, recommend water for successful extinguishing, although reactions may occur.

If the batteries catch fire, they will burn until they burn out completely. Another option is to immerse the batteries in water for at least half an hour. If the battery is not extinguished successfully, the fire will recur.

Environmental Safety Measures

When implementing protection measures, environmental protection must also be observed. For this reason, special care has been put into selection of the components and their compliance with the Directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS). This directive restricts use of hazardous materials in the manufacture of various types of electronic and electrical equipment.

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Another example of use of environmentally friendly materials in our products is compliance to REACH, which is a regulation of the European Union, adopted to improve the protection of human health and the environment from the risks that can be posed by chemicals. REACH regulation also promotes alternative methods for the hazard assessment of substances to reduce the number of tests on animals. Packaging of our products is environmentally friendly and materials degradable.

Correct Disposal of this Product

Information about WEEE Directive

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Of major importance is the compliancy with the Waste Electrical and Electronic Equipment Directive (WEEE) as well. The scope of this Directive is the reuse, recycling, and disposal of electrical equipment during complete lifecycle and after their end of life.

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Business users should contact their supplier and check the terms and conditions of the purchase contract. This product and its electronic accessories should not be mixed with other commercial wastes for disposal.

Compliancy

Simplified EU Declaration of Conformity

Hereby, Etrel d.o.o. declares that the radio equipment type INCH DUO is in compliance with Radio Equipment Directive 2014/53/EU. The full text of the EU Declaration of Conformity is available at the following internet address:

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Select "Access documentation" and then "Certificates".

Tested Compliancy with Standards

Etrel INCH DUO charging station was tested at accredited third-party laboratory SIQ - Slovenian Institute of Quality and Metrology. Performed tests cover all the requirements of RED, LVD and EMC directives of the European Union, according to the specifications of the following standards:

  • IEC 61851-1:2017 (EN IEC 61851-1:2019)

  • IEC 61851-21-2:2018

  • ETSI EN 301 489-1 V2.2.3

  • ETSI EN 301 489-17 V2.2.1

  • ETSI EN 301 489-52 V1.1.0

  • ETSI EN 301 489-3 V2.1.1

  • EN 60529:1991 + A1:2000 + A2:2013

  • EN 62262:2002

Safety Risk Analysis

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All our charging stations are tested and proved compliant with EN 61851 Part 1, Part 21-2, and requirements of harmonized standards to fulfil RED, LVD and EMC directive. These tests and judgement of compliancy was performed by external accredited organization, SIQ - Slovenian Institute of Quality and Metrology, Mašera - Spasićeva ulica 10, 1000 Ljubljana, Slovenia, www.siq.si.

Design Considerations

Special care has been put into selection of components and materials and their compliance to requirements set in standards, technical directives, and rules of good practice.

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The ingress protection class of IP54 proves, that the enclosure of the charging station is protecting the internals against ingress of solid objects, permits only limited ingress of dust and is protected against water splashes from all directions. Impact protection, of at least IK08 states, that the charging station can withstand impacts, equivalent to 1.7 kg dropped from height of 30 cm. As required, tests for the IK class were performed before testing of IP class. 

Licenses

At the same location as the complete EU Declaration of Conformity, in the folder "Licenses", manifest file with information about versions and licenses of integrated software can be found.

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Transportation and Storage instructions

TRANSPORTATION

Please make sure that the charging station (or pallet of charging stations) is stable during the transport.

Transportation temperature range: -30 °C to +70 °C

STORAGE

The charging station is delivered in a cardboard box. We recommend that the charging station is kept in this packaging until the installation. Packaging must be removed before installation of the charging station.

Storage temperature range: -30 °C to +70 °C

STACKING

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INCH Duo:

No stacking, symbol:

Packaging

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Figure 2: Label on the packaging

PRODUCT DESCRIPTION

Basic Functionalities

Etrel INCH DUO is a smart charging station that can predict EV charging habits and help charge the car by the time it is needed, at the lowest possible cost.

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LCD Display

Figure 3: Etrel INCH DUO

Base Specifications

  • Input: 2x230/400V~; 3W+N+PE; 50/60 Hz; 32 Amax

  • Output: 2x230/400V~; 3W+N+PE; 50/60 Hz; 32 Amax

  • Maximum charging power: two charging spots with 7,36 kW (single-phase) or 22,08 kW (three-phase).

  • Device power consumption:

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LTE module

Frequency bands:

LTE-FDD: B1 (2100 MHz), B3 (1800 MHz), B5 (850 MHz), B7 (2600 MHz), B8 (900 MHz), B20 (800 MHz)

LTE-TDD: B38 (2600 MHz), B40 (2300 MHz), B41 (2500 MHz)

WCDMA: B1 (2100 MHz), B5 (850 MHz), B8 (900 MHz)

GSM/EDGE: B3 (1800 MHz), B8 (900 MHz)

Transmitting power:

33dBm±2dB for GSM

24dBm+1/-3dB for WCDMA

23dBm±2dB for LTE-FDD

23dBm±2dB for LTE-TDD

LTE Router

Frequency bands:

4G (LTE-FDD): B1 (2100 MHz), B3 (1800 MHz), B5 (850 MHz), B7 (2600 MHz), B8 (900 MHz), B20 (800 MHz)

4G (LTE-TDD): B38 (2600 MHz), B40 (2300 MHz), B41 (2500 MHz)

3G: B1 (2100 MHz), B5 (850 MHz), B8 (900 MHz)

2G: B3 (1800 MHz), B8 (900 MHz)

Transmitting power:

21.9 dB

RFID module

Frequency band:

13.56 MHz (HF)

Transmitting power:

up to 8 dBm

Dimensions

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Figure 4: Dimensions of INCH DUO charging station

Figure 5: Dimensions of INCH DUO power supply compartment

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Optional and Extra Equipment

The table below shows the optional and extra equipment that can be added to the charging station:

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Figure 6: Underground anchoring element

Etrel Load Guard

Etrel Load guard is a separate device that is installed in the building’s electric cabinet. It measures the electric current in the building’s installation and sends real-time measurements to the charging station.

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Power management of master charging station decides, based on information provided by Load Guard, what target current to set on its connector and other stations of the cluster. If necessary, it will increase or decrease the charging power or even stop it completely to prevent the fuses from switching off due to overcharging.

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Figure 7: Load Guard

Etrel Ocean

Etrel Ocean is a complete software solution for scalable electric vehicle charging management that supports complete overview and control of charging stations while covering numerous use cases.

Usually, it is not needed for home use, its advantages are in the field of management of (real and virtual) clusters of charging stations. It is adaptable and configurable to different business cases.

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Figure 8: Etrel Ocean

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Identify Product Variant

Etrel INCH DUO has multiple variants that differ based on socket type and connectivity option. To identify charging station, there are two possibilities. Either checking the manufacturer sticker or on the Web interface in Diagnostics menu.

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Figure 9: Three different stickers of the charging station

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Circuit Diagram

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OPERATION AND CHARGING PROCEDURE

INCH DUO charging station can be controlled locally or remotely, through web interface, or through charging station management system. Configuration and usage of the charging station’s web interface is described in the next chapter.

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First Power up

Before starting the station, it is absolutely necessary to read this manual and the technical specification of the device.

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When the charging station is power up for the first time it can take several minutes for station to get ready to start using it to charge EV.

Status of LED

LED colour

State

LED action

Sub-state

Green

- Booting

- OK

- Available

Steady green

Booting

Steady green

Connector available

Blink green slow

Preparing for charging

Blink green fast

Waiting for vehicle

Blue

- Charging

Blink blue

Charging

Steady blue

Charging ended

Steady blue

Charging paused (by EV or by EVSE)

Red

- Fault

- Unavailable

Blink red

Fault

Steady red

Connector unavailable

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Setting of Maximal Charging Current

Max power is set by the installer based on the grid capabilities where charging station is installed. If there is need to change it, please set the current limitation in the charging station’s web interface before starting the first charging session.

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First Charging Session

When the charging station is ready to be used, follow the procedures described on the LCD screen. Two charging modes can be selected:

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More charging session means more accurate session prognosis and schedules. Charging schedule will be created based on electricity prices, other loads, and PV production to make sure EV is charged in appropriate time while taking in consideration other constraints.

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Charging Procedure

Step 1: WAKE

In normal conditions, the charging station’s LCD screen will likely be in the screen saver mode. Charging station can be woken up by simply tapping the screen.

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Figure 10: Screen saver

Step 2: AUTHORISATION

Depending on the charging station authentication mode chosen different screens will be shown that will need different actions from user to continue with the charging session. What authorization is allowed can be setup in the charging station’s web interface Configuration menu.

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Figure 15: Swipe RFID card

Step 3: CONNECTING THE CABLE

After the successful authorization, the screen with the description to connect the cable is shown.

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Figure 19: Display of information during charging

Step 4: DEPARTURE TIME INPUT

As soon as the charging session begins, the screen to input departure time is shown. Presented departure time is the one calculated by the charging station based on previous charging habits. The presented departure time can be changed to make sure that the EV is charged.

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What charging information is shown depends on the settings of Web interface.

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Check Status of the Charging Station

In the web interface the information of the current session can be seen. The departure time can be changed using web interface by pressing the »Interactive mode« button.

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Figure 22: Example of shown consumed energy on the LCD screen

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Stop the Charging Session

Charging station can be stopped locally or remotely.

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Stop of charging session can be done remotely with the use of Web interface.

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Paying Procedure in Case of Cluster of Charging Stations

It is possible to implement several INCH DUO charging stations into the same cluster and having the paying terminal installed only on one of them. In this case, the LCD display will lead the customer, on which charging station it is possible to pay for the charging.

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Figure 24: Paying procedure in case of clusters, input of designation of charging station where charging was performed at another charging station with paying terminal

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Charging station WEB INTERFACE

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Charging station’s web interface allows the connection to the charging station platform, configuration of its settings as well as check of the charging session and station data, check of the connectivity status and errors description when they occur.

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Connect to Web Interface

Users can connect to the charging station web interface using the charging station IP address. Default IP address can be found on the information sticker on the inner part of the maintenance doors. IP address of the charging station can be manually changed.

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Figure 25: Insert the default IP into the browser to connect to web interface

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Ping Charging Station from Computer in Same Network

Windows

To determine if the computer is in the same network as charging station ping the station using the CMD command ping with the IP of the station. Computer network can be changed in the network settings.

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If the ping is not successful, the computer might be in different network segment. In this case it, the segment need to be changed in network settings to the one of the charging stations.

Apple computer

When using apple computers, pinging of the station can be performed using Terminal. It can be accessed by going to the “Applications” and selecting “Utilities”. Search for “Terminal” and run it.

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Figure 30: Ping charging station by writing ping and charging station's IP

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Change the Computer Network Settings

If pinging of the charging station is not working, also the connection to the charging station's web interface will not work. To configure the charging station, the network settings will need to be changed. Either configure new IP for the selected interface (Advanced, Add), or change the computer's IP.

Windows

To change the network of the computer in Windows OS, network settings in the Control panel need to be located. First, open the Control panel with click on the icon or searching in the Start menu.

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Figure 33: Change the IP of the computer and subnet mask

Apple computer

To change the IP settings of Apple computer, the »Apple« button need to be pressed to access the »System preferences«

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Figure 37: Set network settings

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Using DHCP for Connection

When DHCP is used router automatically assigns IP address to the charging station connected to it. To acquire DHCP address the charging station reset button need to be pressed for 4 s until the first beep sound is heard. Address will be displayed on the LCD screen.

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Using Web Interface

In the web interface each type of user has different rights what he can see and edit in the web interface. Operators will have the highest rights to set up all the configuration and connectivity settings. A regular home user only has basic rights that will allow him to see Dashboard and Diagnostics module.

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Main Dashboard

Main dashboard window allows to see current power, cluster power if the charging station is part of the cluster, building power load, charging station availability and information about the last session.

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Figure 40: Confirmation window to stop the charging session using web interface

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Diagnostics

When experiencing problems, the logs can be downloaded from “Diagnostic” menu and then sent to the operator to check what is wrong with charging station. Basic information about the charging station are also in the Diagnostics menu.

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Figure 41: Diagnostics web interface module

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Change the Web Interface Language

The language of web interface can be changed by pressing the burger menu and selecting the language at the bottom left corner. Only languages supported by web interface are available.

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More information about the web interface can be found in the INCH DUO Configuration guide.

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Regular MAINTENANCE

It is recommended to perform a visual check and test of the protection elements at least once per year if local regulations do not state otherwise. It is possible that the requirement is to check more often, e.g., every three months, or every month. The check should also be documented.

No other specific services are needed apart from recommended regular maintenance protocol which takes approximately from 60 to 90 minutes onsite, per one charging station.

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Tools

Before maintenance or troubleshoot the charging station, check the appropriate tools to properly maintain charging station:

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Figure 43: Equipment used for the installation of charging station

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General Inspection of the Station

The charging infrastructure operator should perform regular inspections of the charging stations (preventive maintenance). Public charging stations are often exposed to harsh climate conditions and mechanical damage. Critical damage of the casing or other components of the charging station can affect user safety.

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The service doors of the station can be opened by lifting unlocked doors and slightly opening them at the same time, then slightly lifting them once more and opening them completely. The handle next to the lock should be used to lift the doors.

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Check the Protection Elements

Protection elements can be part of charging station or they can be installed in the upstream installation. They should be regularly checked no matter the location.

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Overcurrent Protection

Check the overcurrent protection once a year for any visible damages on the surface. If the overcurrent protection is tripped and the switches cannot return to the active position something is wrong with the protection and needs to be changed by maintenance crew.

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Surge and Overvoltage Protection

Check the surge and overvoltage protection (if installed) once a year for any visible damages on the surface. If the surge and overvoltage protection is tripped it needs to be changed by the maintenance crew.

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RCD

The regulations require that residual current protective device (RCD) is tested regularly, and an audit log should also be kept. The test button on the RCD unit allows user to verify the correct operation of the device by passing a small current through the RCD unit. This simulates a fault by creating an imbalance in the sense coil. If the RCD does not trip when this button is pressed, then the device must be replaced by licensed electrician.

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Figure 44: RCD test buttons

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Recommended Regular Maintenance Protocol

Recommended service interval is once per year, starting one year after the installation of the station. The service protocol is performed as specified in the following checklist.

Checklist

1

Measuring the voltage on all phases and between neutral and earth wires.

2

Measuring resistance between grounding and housing / door of the station.

3

Test of RCD protection 1 with the test button (in case of failure, change of RCD is required or removal of charging station from operation).

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Test of RCD protection 2 with the test button (in case of failure, change of RCD is required or removal of charging station from operation).

5

Performance check: switch off all the main fuses and reboot of charging station.

6

Check-up of pins in socket 1 (no corrosion should be visible).

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Check-up of pins in socket 2 (no corrosion should be visible).

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Checking the socket 1 (socket should be free of dirt and foreign objects).

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Checking the socket 2 (socket should be free of dirt and foreign objects).

10

Login with RFID card (if RFID authorization is enabled and online check is made).

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Login with SMS (if SMS authorization is enabled and online check is made).

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Login with mobile- app (if APP authorization is enabled and online check is made).

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Start charging on socket 1 with a load (with EV or tester + load).

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Display of power consumption on LCD display of the charging station for socket 1 (for this step approx. 5 minutes is needed).

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Stop charging at socket 1.

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Logout and re-login.

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Start charging on socket 2 with a load (with EV or tester + load).

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Display of power consumption on the screen for socket 2 (for this step approx. 5 minutes is needed).

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Stop charging at socket 2.

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Check-up of the mechanical condition of the housing and optional labels.

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Check-up of the condition of LCD display (mechanical or other defects).

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Verifying that the latest version of SW is loaded on the charger

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Optional update if it is part of the product offer. (It can be implemented by Etrel locally or it can be done remotely from client’s back end).

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TROUBLESHOOTING

In the table below, all possible events that can occur at the power up of the station are listed with the procedure what to do in case something is wrong.

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PROBLEM

SOLUTION

LCD screen on the station is inactive.

Check the power supply.

Check the state of safety elements, especially the main controller protection.

Check the output voltage of the 12V DC power supply unit.

The station has collapsed or is damaged and easily exposed to water.

Cut the power supply immediately. The station must be dismantled, and power supply cables secured. The station can then be replaced.

The user completed the identification and plugged the cable into the IEC 62196-2 Type 2 socket, yet the station does not register that the cable has been plugged in.

The user should first check if the cable is plugged in properly. The next step is to determine with the help of the maintenance staff whether the user's vehicle supports the IEC 61851 standard on which the station's operation is based.

The user tries to perform the identification, but the LCD display shows only »Unknown user«.

The smart card that was used for identification is not part of the system or the user is not a registered user.

The user is unable to perform the identification with a verified smart card.

The user should hold the smart card against the RFID card reader and wait for a few seconds for the beep.

The user tries to perform the identification which takes much longer than usual and results in a »Error occurred while logging in« message.

Check if the Control centre is operating normally and if the communication between the charging station and the Control centre is functioning properly.

The charging stations fails to send the cyclic message to the Control centre (it failed to do so for over two hours).

The maintenance staff should examine the functioning of the station (e.g., LCD screen is active). If the station is functioning, the cause of the problem is probably in the communication connection. If the station is not functioning (e.g., LCD screen is inactive), the station might be without power or some protection equipment has been activated.

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Reseting the Charging Station

Charging station can be reset by opening the doors and resetting the main circuit breaker (80 A) at the bottom.

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The reset of the charging station can be made from the web interface as well.

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CONTACT INFORMATION

Technical support department

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