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Summary of Contents for Pepperl+Fuchs KFD0-RSH-1.4S.PS2
- Page 1 PROCESS AUTOMATION SAFETY MANUAL SIL RELAY MODULE KFD0-RSH-1.4S.PS2 ISO9001...
- Page 2 SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 With regard to the supply of products, the current issue of the following document is applicable: The General Terms of Delivery for Products and Services of the Electrical Industry, published by the Central Association of the Electrical Industry (Zentralverband Elektrotechnik und Elektroindustrie (ZVEI) e.V.) in its most recent version as well as the supplementary clause: "Expanded reservation...
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Page 3: Table Of Contents
SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 Contents 1 Introduction................. 4 General Information ..................4 Intended Use ....................4 Manufacturer Information ................5 Relevant Standards and Directives ...............5 2 Planning ................6 System Structure...................6 2.1.1 Low Demand Mode .................6 2.1.2 High Demand Mode .................6 Assumptions ....................7 Safety Function and Safe State ..............8... -
Page 4: Introduction
(causing disturbances or impairment of safety functions) may cause damage to property, environment or persons for which Pepperl+Fuchs GmbH will not be liable. The devices are developed, manufactured and tested according to the relevant safety standards. -
Page 5: Manufacturer Information
SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 Introduction Manufacturer Information Pepperl+Fuchs GmbH Lilienthalstrasse 200 68307 Mannheim/Germany KFD0-RSH-1.4S.PS2 Up to SIL3 (for DTS), up to SIL3 (for ETS) Relevant Standards and Directives Device specific standards and directives Functional safety IEC 61508 part 1 – 7, edition 2000: ■... -
Page 6: Planning
SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 Planning Planning System Structure 2.1.1 Low Demand Mode If there are two loops, one for the standard operation and another one for the functional safety, then usually the demand rate for the safety loop is assumed to be less than once per year. -
Page 7: Assumptions
SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 Planning Assumptions The following assumptions have been made during the FMEDA analysis: Failure rates are constant, wear out mechanisms are not included. ■ The stress levels are average for an industrial environment and can be ■... -
Page 8: Safety Function And Safe State
SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 Planning Safety Function and Safe State Safety Function The safety function of the device is defined: Whenever the input of the device is de-energized, the DTS output is not conducting. Safe State For the DTS safety function the safe state is defined as the DTS output being open (not conducting). -
Page 9: Characteristic Safety Values
SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 Planning Characteristic Safety Values Parameters acc. to IEC 61508 Variables Assessment type and Full assessment documentation Pepperl+Fuchs FMEDA report FS-0042EA-20A Device type Demand mode Low Demand Mode or High Demand Mode Safety function + λ 139.7 FIT 144.77 FIT... -
Page 10: Safety Recommendation
SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 Safety Recommendation Safety Recommendation Interfaces The device has the following interfaces. For corresponding terminals see data sheet. Safety relevant interfaces: input, output I (ETS), output II (DTS) ■ To avoid contact welding in DTS application we recommend to use a serial ■... -
Page 11: Installation And Commissioning
SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 Safety Recommendation Our experience has shown that the useful life time of a Pepperl+Fuchs product can be higher if there are no components with reduced life time in the safety path (like ■ electrolytic capacitors, relays, flash memory, opto coupler) which can produce dangerous undetected failures and if the ambient temperature is significantly below 60 °C. -
Page 12: Proof Test
SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 Proof Test Proof Test Proof Test Procedure According to IEC 61508-2 a recurring proof test shall be undertaken to reveal potential dangerous fails that are otherwise not detected by diagnostic test. The functionality of the subsystem must be verified at periodic intervals... - Page 13 SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 Proof Test Multimeter (Ω ) Multimeter (Ω ) 24 V Figure 4.1 Proof test set-up for KFD0-RSH-1.4S.PS2, test 1 Multimeter (Ω ) Multimeter (Ω ) 24 V Figure 4.2 Proof test set-up for KFD0-RSH-1.4S.PS2, test 2...
- Page 14 SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 Proof Test Multimeter (Ω ) Multimeter (Ω ) 24 V 24 V Figure 4.3 Proof test set-up for KFD0-RSH-1.4S.PS2, test 3 Multimeter (Ω ) Multimeter (Ω ) Figure 4.4 Proof test set-up for KFD0-RSH-1.4S.PS2, test 4...
- Page 15 SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 Proof Test Multimeter (Ω ) 24 V 8(+/-) Multimeter (Ω ) Figure 4.5 Proof test set-up for KFD0-RSH-1.4S.PS2, test 5 Only if all tests are successfully done, the proof test is successfull.
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Page 16: Abbreviations
SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 Abbreviations Abbreviations FMEDA Failure Mode, Effects and Diagnostics Analysis Hardware Fault Tolerance Average Probability of Failure on Demand Probability of dangerous Failure per Hour Proof Test Coverage Safe Failure Fraction Safety Instrumented Function Safety Integrity Level... - Page 17 SAFETY MANUAL SIL KFD0-RSH-1.4S.PS2 Notes...
- Page 18 PROCESS AUTOMATION – PROTECTING YOUR PROCESS Worldwide Headquarters Pepperl+Fuchs GmbH 68307 Mannheim · Germany Tel. +49 621 776-0 E-mail: info@de.pepperl-fuchs.com For the Pepperl+Fuchs representative closest to you check www.pepperl-fuchs.com/pfcontact www.pepperl-fuchs.com 225538 TDOCT-2052CENG Subject to modifications 04/2011 Copyright PEPPERL+FUCHS • Printed in Germany...
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