Beckhoff EL6900, Operating Instructions Manual

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Table of contents
EL6900 3 Version: 2.2.0
Table of contents
1 Foreword .................................................................................................................................................... 5
1.1 Notes on the documentation........................................................................................................... 5
1.2 Safety instructions .......................................................................................................................... 6
1.2.1
Delivery state ..................................................................................................................... 6
1.2.2 Operator's obligation to exercise diligence ........................................................................ 6
1.2.3 Description of safety symbols ............................................................................................ 7
1.3 Documentation issue status............................................................................................................ 8
2 System description ................................................................................................................................... 9
2.1 The Beckhoff Bus Terminal system ................................................................................................ 9
2.1.1
Bus Coupler ..................................................................................................................... 10
2.1.2 Bus Terminals .................................................................................................................. 11
2.1.3 E-bus................................................................................................................................ 11
2.1.4 Power contacts................................................................................................................. 11
2.2 TwinSAFE ..................................................................................................................................... 12
2.2.1
The I/O construction kit is extended safely ...................................................................... 12
2.2.2 Safety concept ................................................................................................................. 12
2.2.3 EL1904, EL2904 - Bus Terminals with 4 fail-safe inputs or outputs ................................ 13
2.2.4 EL6900 - TwinSAFE logic terminal .................................................................................. 13
2.2.5 The fail-safe principle (Fail Stop) ..................................................................................... 13
3 Product description................................................................................................................................. 14
3.1 EL6900 - TwinSAFE logic terminal ............................................................................................... 14
3.2 Intended use ................................................................................................................................. 14
3.3 Technical data .............................................................................................................................. 16
3.4 Safety parameters ........................................................................................................................ 17
3.5 Dimensions ................................................................................................................................... 18
4 Operation.................................................................................................................................................. 19
4.1 Environmental conditions.............................................................................................................. 19
4.2 Installation..................................................................................................................................... 19
4.2.1
Safety instructions............................................................................................................ 19
4.2.2 Transport / storage........................................................................................................... 19
4.2.3 Mechanical installation ..................................................................................................... 19
4.2.4 Electrical installation......................................................................................................... 23
4.2.5 TwinSAFE reaction times................................................................................................. 27
4.2.6 Tested EL1904 devices ................................................................................................... 28
4.2.7 Tested EL2904 devices ................................................................................................... 28
4.3 Operation in potentially explosive atmospheres (ATEX) .............................................................. 29
4.3.1
Special conditions ............................................................................................................ 29
4.3.2 Identification ..................................................................................................................... 30
4.3.3 Date code and serial number ........................................................................................... 30
4.3.4 Further ATEX documentation .......................................................................................... 30
4.4 Configuration of the terminal in TwinCAT ..................................................................................... 30
4.4.1
Configuration requirements.............................................................................................. 30
4.4.2 Inserting a Bus Coupler ................................................................................................... 31
4.4.3 Inserting a Bus Terminal .................................................................................................. 31
4.4.4 Inserting an EL6900 ......................................................................................................... 31
4.4.5 Address settings on TwinSAFE terminals with 1023 possible addresses........................ 32
4.4.6 Registering the TwinSAFE addresses in the TwinCAT automation software .................. 32
4.4.7 Creating a TwinSAFE group ............................................................................................ 33
4.4.8 TwinSAFE group signals.................................................................................................. 35