Contact Interface for Automated Connection Device

This European Standard covers specifications concerning the contact interface for charging of electrical vehicles/buses which make use of an automated connection device (ACD).

Kontaktschnittstelle für ein automatisches Kontaktierungssystem

Interface de contact pour les dispositifs de connexion automatisés

Le présent document s’applique aux ACD de configuration normalisée, destinés à être utilisés dans les systèmes de charge conductifs des véhicules électriques qui intègrent des moyens de contrôle, dont la tension d’emploi assignée peut atteindre 1 500 V en courant continu. Le présent document s’applique aux interfaces en courant continu de puissance élevée, destinées à être utilisées dans les systèmes de charge conductifs isolés, pour les circuits spécifiés dans l’IEC 61851 23 1:—1. Les ACD relevant du domaine d’application du présent document sont utilisés uniquement dans le mode de charge 4, conformément à l’IEC 61851 23 1:—1, paragraphe 3.1.201 (cas D) ou 3.1.202 (cas E). Le présent document décrit les exigences relatives à un ACD concernant la sécurité, les fonctionnalités et les essais. Le présent document décrit le paramétrage de base pouvant être normalisé pour les différents ACD. Les ACD respectant ces paramètres normalisés présentent l’avantage d’être compatibles entre eux, même s’ils s’appuient sur des technologies différentes. Le présent document ne s’applique pas aux solutions basées sur une prise mobile de véhicule, décrite dans l’EN 62196 3, entraînée par un mécanisme automatisé, par exemple un bras robotisé. Le présent document ne couvre pas tous les aspects de sécurité relatifs à la maintenance.

Kontaktni vmesnik za avtomatizirane priključne naprave

General Information

Status
Published
Public Enquiry End Date
12-Apr-2020
Publication Date
08-Sep-2021
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
19-Feb-2021
Due Date
26-Apr-2021
Completion Date
09-Sep-2021

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SLOVENSKI STANDARD
SIST EN 50696:2021
01-oktober-2021
Kontaktni vmesnik za avtomatizirane priključne naprave
Contact Interface for Automated Connection Device
Kontaktschnittstelle für ein automatisches Kontaktierungssystem
Interface de contact pour les dispositifs de connexion automatisés
Ta slovenski standard je istoveten z: EN 50696:2021
ICS:
43.040.10 Električna in elektronska Electrical and electronic
oprema equipment
SIST EN 50696:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 50696:2021
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SIST EN 50696:2021
EUROPEAN STANDARD EN 50696
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2021
ICS 43.120
English Version
Contact Interface for Automated Connection Device

Interface de contact pour les dispositifs de connexion Kontaktschnittstelle für ein automatisches

automatisés Kontaktierungssystem

This European Standard was approved by CENELEC on 2021-01-11. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 50696:2021 E
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SIST EN 50696:2021
Contents Page

European foreword ...............................................................................................................................5

Introduction ...........................................................................................................................................6

1 Scope ........................................................................................................................................7

2 Normative references ..............................................................................................................7

3 Terms and definitions .............................................................................................................8

4 Electrical requirements ...........................................................................................................8

4.1 Voltage and current requirements .........................................................................................8

4.1.1 Number of contacts .................................................................................................................8

4.1.2 Quality of DC charging voltage ..............................................................................................9

4.1.3 Rated continuous current .......................................................................................................9

4.1.4 Short-circuit current ................................................................................................................9

4.1.5 Maximum temperature of contacts ........................................................................................9

4.2 Signals ......................................................................................................................................9

5 Safety requirements ............................................................................................................. 10

5.1 EN 61140 ................................................................................................................................ 10

5.2 Contact sequence ................................................................................................................. 10

5.3 Return to home position ...................................................................................................... 10

6 Mechanical requirements .................................................................................................... 10

6.1 Grid of parallels and meridians ........................................................................................... 10

6.2 Specific mechanical requirements for busses .................................................................. 10

6.3 Tolerances of parking position ........................................................................................... 11

6.3.1 General .................................................................................................................................. 11

6.3.2 Minimum normative requirement for parking .................................................................... 11

7 Environmental requirements ............................................................................................... 12

7.1 Degree of pollution ............................................................................................................... 12

7.2 Overvoltage category ........................................................................................................... 12

7.3 Ambient or operation temperature ..................................................................................... 12

7.4 Noise ...................................................................................................................................... 13

7.5 Wind ....................................................................................................................................... 13

8 Test specification and procedure ....................................................................................... 13

9 Documentation ...................................................................................................................... 18

Annex A (normative) ACD mounted on the infrastructure - ACD counterpart on the roof of the

vehicle .................................................................................................................................... 19

A.1 Generals of infrastructure mounted ACD function ........................................................... 19

A.2 ACD mounted on the infrastructure – ACD counterpart on the roof of the vehicle with

two in-line and two parallel contact bars ........................................................................... 19

A.2.1 ACD counterpart mechanical arrangement ....................................................................... 19

A.2.2 Keep-out zone ....................................................................................................................... 22

A.2.3 Mechanical arrangement moving part ................................................................................ 24

A.2.4 Connected moving part and counterpart (informative) .................................................... 25

A.2.5 Specific requirements .......................................................................................................... 27

A.3 ACD mounted on the infrastructure – ACD counterpart on the roof of the vehicle with

in-line roof contact bars ....................................................................................................... 29

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SIST EN 50696:2021
EN 50696:2021 (E)

A.3.1 Additional generals for this application .............................................................................. 29

A.3.2 ACD counterpart mechanical arrangement ........................................................................ 29

A.3.3 Keep-out zone ........................................................................................................................ 33

A.3.4 Mechanical arrangement moving part ................................................................................ 35

A.3.5 Connected moving part and counterpart (informative) ..................................................... 36

A.3.6 Specific requirements ........................................................................................................... 38

A.4 ACD mounted on the infrastructure – ACD counterpart on the roof of the vehicle with

contact dome ......................................................................................................................... 40

A.4.1 Additional generals for this application .............................................................................. 40

A.4.2 ACD counterpart mechanical arrangement ........................................................................ 40

A.4.3 ACD counterpart keep-out zone .......................................................................................... 43

A.4.4 Specific requirements ........................................................................................................... 43

Annex B (normative) ACD mounted on the roof of the vehicle - ACD counterpart on the

infrastructure ......................................................................................................................... 47

B.1 General ................................................................................................................................... 47

B.2 Mechanical arrangement ACD counterpart ........................................................................ 47

B.3 ACD counterpart keep-out zone .......................................................................................... 49

B.4 Mechanical arrangement moving part ................................................................................ 50

B.5 Specific requirements ........................................................................................................... 51

B.5.1 Contact forces ....................................................................................................................... 51

B.5.2 Specific gauge for testing .................................................................................................... 51

Annex C (normative) ACD mounted underneath the vehicle - ACD counterpart on the

ground .................................................................................................................................... 54

C.1 General ................................................................................................................................... 54

C.2 Lateral positioning ................................................................................................................ 54

C.3 Longitudinal positioning ...................................................................................................... 54

C.4 Vertical positioning ............................................................................................................... 54

C.5 Mechanical arrangement ACD ............................................................................................. 55

C.6 Mechanical arrangement ACD counter part ....................................................................... 57

C.7 Connected automated coupler ............................................................................................ 58

C.8 Specific requirements ........................................................................................................... 61

C.8.1 Reachable contacts ............................................................................................................... 61

C.8.2 Contact force ......................................................................................................................... 61

C.9 Rated current (short-term current) ...................................................................................... 61

C.10 Curb lateral reference ........................................................................................................... 61

C.11 Protection by obstacle .......................................................................................................... 62

C.12 Protection by obstacle – Vehicle requirement ................................................................... 62

C.13 Power interface ...................................................................................................................... 63

C.14 Control/command interface.................................................................................................. 63

C.14.1 Earthing .................................................................................................................................. 63

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SIST EN 50696:2021
EN 50696:2021 (E)

C.14.2 Detection ............................................................................................................................... 64

C.14.3 Control pilot communication ............................................................................................... 64

C.14.4 CCS WLAN communication ................................................................................................. 64

C.15 Specific tests specification and procedure ....................................................................... 64

C.16 Specific gauge for testing .................................................................................................... 65

C.16.1 General .................................................................................................................................. 65

C.16.2 Gauge as standard ACD counterpart for testing an ACD................................................. 65

C.16.3 Gauge as standard ACD for testing an ACD counterpart................................................. 67

Annex D (normative) ACD mounted on the infrastructure and connecting to the side or on the

roof of the vehicle ................................................................................................................. 68

D.1 General .................................................................................................................................. 68

D.2 Safety ..................................................................................................................................... 69

D.2.1 General .................................................................................................................................. 69

D.2.2 Degree of protection against hazardous-live-parts .......................................................... 69

D.2.3 Contact sequencing ............................................................................................................. 69

D.2.4 Prevention of damages from unintended movement ....................................................... 70

D.3 Mechanical arrangement of the counterpart ..................................................................... 70

D.3.1 General .................................................................................................................................. 70

D.3.2 Moving pin side ..................................................................................................................... 70

D.3.3 Dimensional requirements .................................................................................................. 70

D.3.4 Contact quality and plating ................................................................................................. 71

D.4 Test specification and procedure ....................................................................................... 72

D.5 Mechanical arrangement of the socket side ...................................................................... 72

D.6 Keep-out zone ....................................................................................................................... 74

Bibliography ....................................................................................................................................... 76

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SIST EN 50696:2021
EN 50696:2021 (E)
European foreword

This document (EN 50696:2021) has been prepared by CLC/TC 23H, WG 5, “Contact interface for

automated connection devices (ACD)”.
The following dates are fixed:
• latest date by which this document has (dop) 2022-01-11
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2024-01-11
standards conflicting with this document
have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

This document has been prepared under a mandate given to CENELEC by the European Commission and

the European Free Trade Association.
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SIST EN 50696:2021
EN 50696:2021 (E)
Introduction

The electrical interface for charging electrically propelled vehicles with plugs, socket-outlets, vehicle

connectors and vehicle inlets is described in EN 62196 series and EN 61851-23. For heavier vehicles such

as buses and trucks, requirements of short charging times with high energy present a problem of handling,

and safety with hand-held connecting devices. For these high current charging applications, an automated

connection device (ACD) is of interest.

An automated coupler consists out of a mobile assembly with electrical contacts, called ACD and fixed

electrical contacts, called ACD counterpart. Automated couplers allow an unmanned connection of high-

current contacts and signal/control contacts.

This document contains requirements for all type of ACDs. Its annexes describe specific implementations

and specific requirements. This document is expected to be read in conjunction with IEC 61851-23-1:— .

Under preparation. Stage at time of publication: IEC CDV 61851-23-1:2020.
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SIST EN 50696:2021
EN 50696:2021 (E)
1 Scope

This document is applicable to ACDs of standardized configuration, intended for use in electric vehicle

conductive charging systems which incorporate control means, with rated operating voltage up to 1 500 V

DC.

This document applies to high power DC interfaces intended for use in isolated conductive charging systems,

for circuits specified in IEC 61851-23-1:— .

The ACDs covered by this document are used only in charging mode 4, according to IEC 61851-23-1:— ,

3.1.201 Case D or 3.1.202 Case E.

This document describes the requirements for an ACD in regard of safety, function and testing. This

document describes basic parameters that can be standardized for different ACDs. ACDs following these

standardized parameters will have the benefit of being compatible, even if they are based on different

technologies.

This document does not apply to solutions based on a vehicle connector described in EN 62196-3 driven by

an automated mechanism, as, for instance, a robotic arm.
This document does not cover all safety aspects related to maintenance.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes

requirements of this document. For dated references, only the edition cited applies. For undated references,

the latest edition of the referenced document (including any amendments) applies.

EN 1652, Copper and copper alloys - Plate, sheet, strip and circles for general purposes

EN 12163, Copper and copper alloys - Rod for general purposes
EN 12167, Copper and copper alloys - Profiles and bars for general purposes

EN 16005, Power operated pedestrian doorsets – Safety in use – Requirements and test methods

EN 50124-1, Railway applications - Insulation coordination - Part 1: Basic requirements - Clearances and

creepage distances for all electrical and electronic equipment

EN 60068-2-11, Environmental testing - Part 2: Tests - Test Ka: Salt mist (IEC 60068-2-11)

EN 60309-1:1999, Plugs, socket-outlets and couplers for industrial purposes - Part 1: General requirements

(IEC 60309-1:1999)

EN 60512-2-2, Connectors for electronic equipment - Tests and measurements – Part 2-2: Electrical

continuity and contact resistance tests - Test 2b: Contact resistance – Specified test current method

EN 60512-5-1, Connectors for electronic equipment - Tests and measurements - Part 5-1: Current-carrying

capacity tests - Test 5a: Temperature rise (IEC 60512-5-1)

EN 60512-5-2, Connectors for electronic equipment - Tests and measurements - Part 5-2: Current-carrying

capacity tests - Test 5b: Current-temperature derating (IEC 60512-5-2)
EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529)

EN 60664-1, Insulation coordination for equipment within low-voltage systems - Part 1: Principles,

requirements and tests (IEC 60664-1)

EN 61140, Protection against electric shock - Common aspects for installation and equipment (IEC 61140)

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SIST EN 50696:2021
EN 50696:2021 (E)

EN IEC 61851-1:2019, Electric vehicle conductive charging system - Part 1: General requirements (IEC

61851-1:2017)
EN 61984:2009, Connectors - Safety requirements and tests (IEC 61984:2008)
Electric vehicle conductive charging system – Part 23-1: DC charging with an
IEC 61851-23-1:—,
automated connection system

IEC 62196-1:2014, Plugs, socket-outlets, vehicle connectors and vehicle inlets - Conductive charging of

electric vehicles - Part 1: General requirements

ISO 17409:2020, Electrically propelled road vehicles — Conductive power transfer — Safety requirements

3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 61851-23-1:— and the following

apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1
working position

position reached when the ACD and the fixed ACD counterpart have mated and when the physical contact

is established, and energy transfer is allowed
3.2
home position

position where the ACD is not engaged with its counterpart and where safe clearance is present with street

and infrastructure
3.3
keep-out zone
space above and around automated coupler
4 Electrical requirements
4.1 Voltage and current requirements
4.1.1 Number of contacts
For systems described in IEC 61851-23-1:— , Annexes AA, BB and CC:
1 1

Four contacts: DC+, DC-, PE and CP (IEC 61851-23-1:— , Figure AA.1, IEC 61851-23-1:— , Figure BB.1

and IEC 61851-23-1:— , Figure CC.14)
For systems described in IEC 61851-23-1:— , Annex KK:
three contacts: DC+, DC-, PE (IEC 61851-23-1:— , Figure KK.14)
Under preparation. Stage at time of publication: IEC CDV 61851-23-1:2020.
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SIST EN 50696:2021
EN 50696:2021 (E)
4.1.2 Quality of DC charging voltage

Since the ACD is part of the power transmitting system, its influence on the quality of DC charging voltage

shall be considered, to not exceed the levels indicated in IEC 61851-23-1:— .
4.1.3 Rated continuous current

The maximum current may exceed the limits defined in EN 62196-1. The rated current can be a continuous

current or the average of an intermittent current.

The rated current is defined by the vehicle and the application. The manufacturer of the ACD shall guarantee

that his system is sized and safe for this current by confirming the physical values described in this document.

In the case of an automated coupler consisting of an ACD and an ACD counterpart from different or unknown

manufacturers, the minimum current requirements that fulfil the requirements for a particular annex of this

document shall be assumed unless there are sensing devices that can reliably determine if the ACD is

operating within the defined limits of this document. However, if the ACD and the ACD counterpart can be

definitively determined to be of a particular type and manufacturer, higher currents with or without sensing

devices can be used, according to manufacturer’s specifications.
4.1.4 Short-circuit current

In case of short circuit, the ACD shall not cause dangerous situation such as an explosion or a fire. After

such a short circuit, the ACD shall be checked for proper function prior further service.

As in ISO 17409:2020 leaf the short-circuit value for systems with an automated coupler open, an automatic

coupler shall be designed that way that it withstands a short-circuit current of 12 000 000 A s to be on a safe

side.

NOTE 12 000 000 A s can be reached with 34 600 A in 10 ms or 11 000 A in 100 ms or 3 460 A in 1 s.

The ACD shall be designed in such a way that a peak current of 30 kA, considered in ISO 17409:2020,

7.2.4.2 shall not lead to damages or dangerous situations in regard of the Lorentz force etc.

4.1.5 Maximum temperature of contacts

The contacts of the automated coupler have a temperature rise depending on the charging current (rated

continuous current or intermitted current). This temperature rise shall not have any damaging influence on

materials or devices in the surrounding of the automated coupler. These materials or devices require a

maximum temperature of 90 °C according to ISO 17409.
Compliance is checked by test in Clause 8, Table 4.
4.2 Signals

The minimum signals required are the status (the position) of the ACD. All other signalling necessary for

pairing or charging are described in IEC 61851-23-1:— or in ISO 15118.
ACD is in home position
ACD has reached working position (see annexes for specific implementation).
The home position signal is safety relevant.

There shall be a timeout if ACD is moved but the working position has not been reached in a specific time

frame. This information shall be verified by overall system electric vehicle (EV) EVSE, not by the ACD.

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SIST EN 50696:2021
EN 50696:2021 (E)
5 Safety requirements
5.1 EN 61140

In case of blocking contaminants, the ACD might not reach the home position. There shall be an installed

system that monitors the ACD to reach the home position. This shall be realized by the ACD itself and

communicated to the overall system (EV or EVSE).

NOTE For reaction of this missing home position signal, refer to IEC 61851-23-1:— , CC.5.201, KK.5.201 or

ISO 17409.
5.2 Contact sequence

According to IEC 61851-23-1:— , the connection and disconnection of the ACD shall be done without

current. It is not necessary to have a contact sequence because no dangerous voltage is present.

NOTE Under emergency situation without a first disconnecting CP or PE, arcing cannot be avoided. It is proposed

to have a first disconnecting CP/PE or a guaranteed arc resistive system, so that no danger situation due to that arc can

occur (f. e. fire). Scope is safety and not abrasion.
5.3 Return to home position

In case of an intentional or unintentional loss of supply power for the actuator of the ACD, the ACD shall

return to its home position. For details refer to IEC 61851-23-1:— , Clause 201.3 “Loss of power”

Compliance is checked by test in Clause 8, Table 1 Test Number B3.
6 Mechanical requirements
6.1 Grid of parallels and meridians
Key
No Part
1 Reference point – axle A as explained in 6.2
2 Ground level
Figure 1 — Grid of parallels and meridians according ISO 8855
6.2 Specific mechanical requirements for busses

Distinction shall be made with regards to the several vehicle dimensions, for instance double/single deck

busses, resulting in several distances between the ACD and the ACD counterpart.

For the position of ACD or the ACD counterpart on the vehicle the reference point is centred over axle A.

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SIST EN 50696:2021
EN 50696:2021 (E)

Axle A is defined as the first front axle in regard of the driving direction of the vehicle.

This is the reference point for the parking tolerances during charging: x-centre, y-centre, z-centre of axle A

6.3 Tolerances of parking position
6.3.1 General
Figure 2 shows the location of contact systems and positioning tolerances.
Key
No Part
1 Axle A
2 ΦZ
3 ΦX
4 ΦSlope
Figure 2 — Location of a Contact System and Positioning Tolerances
6.3.2 Minimum normative requirement for parking

The minimal positioning tolerances that have to be compensated while positioning the vehicle for charging

...

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