Beckhoff EK1914 User manual

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Operating Manual | EN
EK1914
TwinSAFE Bus Coupler with 2 fail-safe inputs and 2 fail-safe outputs
2023-03-01 | Version: 2.0.0

Table of contents
EK1914 3Version: 2.0.0
Table of contents
1 Notes on the documentation....................................................................................................................5
1.1 Disclaimer..........................................................................................................................................5
1.1.1 Trademarks ........................................................................................................................5
1.1.2 Patents ...............................................................................................................................5
1.1.3 Limitation of liability ............................................................................................................6
1.1.4 Copyright............................................................................................................................ 6
1.2 Version numbers ...............................................................................................................................7
1.3 Staff qualification...............................................................................................................................8
1.4 Safety and instruction........................................................................................................................9
1.4.1 Explanation of symbols ...................................................................................................... 9
1.5 Beckhoff Support and Service.........................................................................................................10
2 For your safety ........................................................................................................................................11
2.1 Safety instructions...........................................................................................................................11
2.1.1 Before operation............................................................................................................... 11
2.1.2 In operation ...................................................................................................................... 11
2.1.3 After operation.................................................................................................................. 11
3 The Beckhoff EtherCAT Terminal system ............................................................................................12
3.1 EtherCAT Bus Coupler....................................................................................................................13
3.2 EtherCAT Terminals........................................................................................................................14
3.3 E-bus...............................................................................................................................................15
3.4 Power contacts................................................................................................................................15
4 System description TwinSAFE ..............................................................................................................16
4.1 Extension of the Beckhoff I/O system with safety functions............................................................16
4.2 Safety concept ................................................................................................................................16
5 Product description ................................................................................................................................17
5.1 General description .........................................................................................................................17
5.2 Intended use ...................................................................................................................................18
5.3 Technical data.................................................................................................................................19
5.4 Safety parameters...........................................................................................................................21
5.5 Environmental conditions ................................................................................................................22
5.6 Dimensions .....................................................................................................................................23
6 Transport and storage ............................................................................................................................24
7 Installation ..............................................................................................................................................25
7.1 Safety instructions...........................................................................................................................25
7.2 Transport / storage..........................................................................................................................25
7.3 Mechanical installation ....................................................................................................................25
7.3.1 Control cabinet / terminal box .......................................................................................... 26
7.3.2 Installation position and minimum distances.................................................................... 26
7.3.3 Installation on mounting rails............................................................................................ 27
7.4 Electrical installation........................................................................................................................29
7.4.1 Connections within a Bus Terminal block ........................................................................ 29
7.4.2 Overvoltage protection ..................................................................................................... 30
7.4.3 HD housing wiring ............................................................................................................31

Table of contents
EK19144 Version: 2.0.0
7.4.4 High Density terminals ..................................................................................................... 32
7.4.5 Wire cross sections (HD) ................................................................................................. 32
7.4.6 Pin assignment................................................................................................................. 33
7.5 TwinSAFE reaction times................................................................................................................39
7.5.1 Typical reaction time ........................................................................................................ 39
7.5.2 Worst-case reaction time ................................................................................................. 40
7.6 Tested devices ................................................................................................................................41
8 Configuration of the EK1914 in TwinCAT .............................................................................................42
8.1 Inserting a Beckhoff TwinSAFE Bus Coupler..................................................................................42
8.2 Address settings on the EK1914 TwinSAFE Bus Coupler ..............................................................43
8.3 Entering a TwinSAFE address and parameters in the System Manager........................................44
8.3.1 Configuration of the EK1914 for light barriers, light grids, light curtains, etc.................... 47
8.3.2 Configuration of the EK1914 for safety switching mats.................................................... 48
9 Diagnosis .................................................................................................................................................49
9.1 Diagnosis LEDs...............................................................................................................................49
9.1.1 Diag1 (green) ................................................................................................................... 49
9.1.2 Diag2 (red) ....................................................................................................................... 50
9.2 Diagnosis objects ............................................................................................................................51
9.3 Possible causes of diagnostic messages........................................................................................53
10 Service life ...............................................................................................................................................54
11 Maintenance and cleaning .....................................................................................................................55
12 Decommissioning ...................................................................................................................................56
12.1 Disposal ..........................................................................................................................................56
12.1.1 Returning to the vendor....................................................................................................56
13 Appendix..................................................................................................................................................57
13.1 Volatility...........................................................................................................................................57
13.2 Focus of certificates ........................................................................................................................58
13.3 Certificate ........................................................................................................................................59

Notes on the documentation
EK1914 5Version: 2.0.0
1 Notes on the documentation
1.1 Disclaimer
Beckhoff products are subject to continuous further development. We reserve the right to revise the
operating instructions at any time and without prior announcement. No claims for the modification of products
that have already been supplied may be made on the basis of the data, diagrams and descriptions in these
operating instructions.
In these operating instructions we define all permissible use cases whose properties and operating
conditions we can guarantee. The use cases we define are fully tested and certified. Use cases beyond this,
which are not described in these operating instructions, require the approval of Beckhoff Automation GmbH
& Co KG.
1.1.1 Trademarks
Beckhoff®, TwinCAT®, EtherCAT®, EtherCAT G®, EtherCAT G10®, EtherCAT P®, Safety over EtherCAT®,
TwinSAFE®, XFC®, XTS® and XPlanar® are registered and licensed trademarks of Beckhoff Automation
GmbH.
The use of other brand names or designations by third parties may lead to an infringement of the rights of
the owners of the corresponding designations.
1.1.2 Patents
The EtherCAT technology is protected by patent rights through the following registrations and patents with
corresponding applications and registrations in various other countries:
• EP1590927
• EP1789857
• EP1456722
• EP2137893
• DE102015105702
EtherCAT® is a registered trademark and patented technology,
licensed by Beckhoff Automation GmbH.
Safety over EtherCAT® is a registered trademark and patented
technology, licensed by Beckhoff Automation GmbH.

Notes on the documentation
EK19146 Version: 2.0.0
1.1.3 Limitation of liability
All components in this product as described in the operating instructions are delivered in a specific
configuration of hardware and software, depending on the application regulations. Modifications and
changes to the hardware and/or software configuration that go beyond the documented options are
prohibited and nullify the liability of Beckhoff Automation GmbH & Co. KG.
The following is excluded from the liability:
• Failure to observe these operating instructions
• Improper use
• Use of untrained personnel
• Use of unauthorized spare parts
1.1.4 Copyright
© Beckhoff Automation GmbH & Co. KG, Germany.
The distribution and reproduction of this document as well as the use and communication of its contents
without express authorization are prohibited.
Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a
patent, utility model or design.

Notes on the documentation
EK1914 7Version: 2.0.0
1.2 Version numbers
Version Comment
2.0.0 • Migration
• Editorially revised
• In chapter Technical data link to download page of certificates added
• Appendix adapted and expanded
1.3.1 • Technical data permissible air pressure extended
1.3.0 • Note on the extended temperature range added to the technical data
1.2.0 • Reliability document updated
• Safety parameters updated
• Foreword revised
1.1.2 • Reliabililty document added
• Chapter reaction times added
1.1.1 • Certificate updated
1.1.0 • Version numbers added
• Company address changed
• Description DateCode added
• HFT and classification element added
1.0.1 • Certificate added
1.0.0 • First released version
Currentness
Please check whether you are using the current and valid version of this document. The current version can
be downloaded from the Beckhoff homepage at http://www.beckhoff.de/twinsafe. In case of doubt, please
contact Technical Support (see Beckhoff Support and Service [}10]).
Origin of the document
The original documentation is written in German. All other languages are derived from the German original.
Product features
Only the product properties specified in the current operating instructions are valid. Further information given
on the product pages of the Beckhoff homepage, in emails or in other publications is not authoritative.

Notes on the documentation
EK19148 Version: 2.0.0
1.3 Staff qualification
These operating instructions are intended exclusively for trained specialists in control technology and
automation with the relevant knowledge.
The trained specialist personnel must ensure that the applications and use of the described product meet all
safety requirements. This includes all applicable and valid laws, regulations, provisions and standards.
Trained specialists
Trained specialists have extensive technical knowledge from studies, apprenticeships or technical training.
Understanding of control technology and automation is available. Trained specialists can:
• Independently identify, avoid and eliminate sources of hazard.
• Apply relevant standards and directives.
• Implement specifications from accident prevention regulations.
• Evaluate, prepare and set up the workplaces.
• Evaluate, optimize and execute work independently.

Notes on the documentation
EK1914 9Version: 2.0.0
1.4 Safety and instruction
Read the contents that refer to the activities you have to perform with the product. Always read the chapter
For your safety in the operating instructions.
Observe the warnings in the chapters so that you can handle and work with the product as intended and
safely.
1.4.1 Explanation of symbols
Various symbols are used for a clear arrangement:
1. The numbering indicates an action that should be taken.
• The bullet point indicates an enumeration.
[…] The square brackets indicate cross-references to other text passages in the document.
[1] The number in square brackets indicates the numbering of a referenced document.
1.4.1.1 Pictograms
In order to make it easier for you to find text passages, pictograms and signal words are used in warning
notices:
DANGER
Failure to observe will result in serious or fatal injuries.
WARNING
Failure to observe may result in serious or fatal injuries.
CAUTION
Failure to observe may result in minor or moderate injuries.
NOTE
Notes
Notes are used for important information on the product. The possible consequences of failure to observe
these include:
• Malfunctions of the product
• Damage to the product
• Damage to the environment
Information
This sign indicates information, tips and notes for dealing with the product or the software.

Notes on the documentation
EK191410 Version: 2.0.0
1.5 Beckhoff Support and Service
Support
Beckhoff Support offers technical advice on the use of individual Beckhoff products and system planning.
The employees support you in the programming and commissioning of sophisticated automation systems.
Hotline: [phone]
E-mail: [email protected]
Web: www.beckhoff.com/support
Training
Training in Germany takes place in our training center at the Beckhoff headquarters in Verl, at subsidiaries
or, by arrangement, at the customer's premises.
Hotline: [phone]
E-mail: [email protected]
Web: www.beckhoff.com/training
Service
The Beckhoff Service Center supports you with after-sales services such as on-site service, repair service or
spare parts service.
Hotline: [phone]
E-mail: [email protected]
Web: www.beckhoff.com/service
Download area
In the download area you can obtain product information, software updates, the TwinCAT automation
software, documentation and much more.
Web: www.beckhoff.com/download
Headquarters
Beckhoff Automation GmbH & Co. KG
Hülshorstweg 20
33415 Verl
Germany
Phone: [phone]
E-mail: [email protected]
Web: www.beckhoff.com
For the addresses of our worldwide locations, please visit our website at Global Presence.