Beckhoff EL6900 - Table of Contents

Table of contents
EL6900 3Version: 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