Beckhoff EL1918 Operating Instructions

Table of contents
EL1918 3Version: 1.2.0
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 ..............................................................................................................7
1.4 Version history of the TwinSAFE product..........................................................................................8
1.5 References ........................................................................................................................................8
2 System description ...................................................................................................................................9
2.1 The Beckhoff EtherCAT Terminal system .........................................................................................9
2.1.1 EtherCAT Bus Coupler .................................................................................................... 10
2.1.2 EtherCAT 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 The fail-safe principle (Fail Stop) ..................................................................................... 13
3 Product description.................................................................................................................................14
3.1 EL1918 – TwinSAFE Terminal with 8 digital fail-safe inputs ...........................................................14
3.2 Intended use....................................................................................................................................15
3.3 Technical data .................................................................................................................................17
3.4 Safety parameters ...........................................................................................................................18
3.5 Safe input ........................................................................................................................................18
3.6 Characteristic curve of the inputs ....................................................................................................19
3.7 Dimensions......................................................................................................................................20
4 Operation..................................................................................................................................................21
4.1 Environmental conditions ................................................................................................................21
4.2 Installation .......................................................................................................................................21
4.2.1 Safety instructions ........................................................................................................... 21
4.2.2 Transport / storage .......................................................................................................... 21
4.2.3 Mechanical installation..................................................................................................... 21
4.2.4 Electrical installation ........................................................................................................ 28
4.3 Configuration of the terminal in TwinCAT........................................................................................33
4.3.1 Inserting a Bus Coupler ................................................................................................... 33
4.3.2 Inserting a Bus Terminal.................................................................................................. 33
4.3.3 Adding an EL1918 ........................................................................................................... 33
4.3.4 Address settings on TwinSAFE terminals with 1023 possible addresses ....................... 34
4.3.5 Alias devices.................................................................................................................... 35
4.3.6 EL1918 parameters in TwinCAT...................................................................................... 36
4.3.7 Process image of the EL1918.......................................................................................... 38
4.3.8 Local logic function .......................................................................................................... 39

Beckhoff EL1918 Specifications

General

Brand	Beckhoff
Model	EL1918
Category	Touch terminals
Language	English