Power repeater / power supply according to IEC 61158-2
Table of contents
Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
Date of issue12.02.2002
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Table of contents
1 Declaration of conformity ........................................................................3
2 Symbols used in this document .............................................................4
3 Safety ........................................................................................................5
3.1 Intended use ............................................................................................................ 5
3.2 General Safety Instructions ................................................................................... 5
3.3 Safety instructions for power repeaters and power supplies ............................ 5
3.4 Notes on the "Non Incendive“ ignition protection class .................................... 6
4 instrumentFOUNDATION FieldbusIntroduction to intrinsic safety for
field bus systems 8
4.1 The FISCO model ....................................................................................................9
4.2 The Entity model ...................................................................................................10
5 FOUNDATION FieldbusGeneral ............................................................11
5.1 Ranges of application of power repeaters .........................................................11
5.1.1 Dimensioning of a field bus segment in accordance with IEC 61158-2 ..................13
5.2 Ranges of application of power supplies ...........................................................16
6 FOUNDATION FieldbusMechanics of power repeaters ......................19
6.1 Mechanical dimensions and connections ..........................................................19
7 FOUNDATION FieldbusPower supply, connections and operating
components 21
7.1 Redundant power supply ..................................................................................... 22
7.2 Connection of power repeaters to the power rail .............................................. 23
7.3 Segmentation ........................................................................................................ 23
7.4 Connections of power repeaters and power supplies ...................................... 24
7.5 Operating components ........................................................................................ 25
7.5.1 Operating components for power repeater .............................................................25
7.5.2 Operating components for field bus power supply ..................................................26
7.6 Meaning of the LED .............................................................................................. 27
7.6.1 LEDs of the power repeaters ..................................................................................27
7.6.2 LEDs of the power supplies ....................................................................................27
7.7 Grounding ............................................................................................................. 27
