Related Manuals for Pepperl+Fuchs SIL KCD2-STC-1.HC
Summary of Contents for Pepperl+Fuchs SIL KCD2-STC-1.HC
- Page 1 PROCESS AUTOMATION SAFETY MANUAL SIL SMART Transmitter Power Supply KCD2-STC-(Ex)1.HC(.SP), HiC2025HC ISO9001...
- Page 2 Safety Manual SIL KCD2-STC-(Ex)1.HC(.SP), HiC2025HC 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 of proprietorship"...
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Page 3: Table Of Contents
Safety Manual SIL KCD2-STC-(Ex)1.HC(.SP), HiC2025HC 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 2.1.3 Safe Failure Fraction.................6 Assumptions ....................7 Safety Function and Safe State ..............8 Characteristic Safety Values .................9... -
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
KC-devices with spring terminals has the extension ".SP". The KCD2-STC-(Ex)1.HC(.SP) is a single device for DIN rail mounting while the HiC2025HC is a plug-in device to be inserted into a specific Termination Board. Manufacturer Information Pepperl+Fuchs GmbH Lilienthalstrasse 200, 68307 Mannheim, Germany KCD2-STC-1.HC(.SP) KCD2-STC-Ex1.HC(.SP) HiC2025HC... -
Page 6: Planning
Safety Manual SIL KCD2-STC-(Ex)1.HC(.SP), HiC2025HC 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 KCD2-STC-(Ex)1.HC(.SP), HiC2025HC Planning Assumptions The following assumptions have been made during the FMEDA analysis: The device shall claim less than 10 % of the total failure budget for a SIL2 safety loop. For a SIL2 application operating in Low Demand Mode the total PFD value ... -
Page 8: Safety Function And Safe State
Safety Manual SIL KCD2-STC-(Ex)1.HC(.SP), HiC2025HC Planning Safety Function and Safe State Safety Function The safety function of the device is fulfilled, as long as the output repeats the input current (4 mA ... 20 mA) with a tolerance of 2 %. Therefore the DIP switch settings used in safety relevant applications are: DIP Switch Settings KCD2-STC-(Ex)1.HC(.SP) Function... -
Page 9: Characteristic Safety Values
Safety Manual SIL KCD2-STC-(Ex)1.HC(.SP), HiC2025HC Planning Characteristic Safety Values Parameters acc. to IEC 61508 Values Assessment type and documentation FMEDA report Device type Mode of operation Low Demand Mode or High Demand Mode Safety function Signal transfer 126.3 FIT λ 0 FIT λ... -
Page 10: Safety Recommendation
Safety Manual SIL KCD2-STC-(Ex)1.HC(.SP), HiC2025HC Safety Recommendation Safety Recommendation Interfaces The device has the following interfaces. For corresponding terminals see data sheet. Safety relevant interfaces: input I, output I Non-safety relevant interfaces: none The HART communication is not relevant for functional safety. Configuration The device must be configured through the user accessible DIP switches for the required output function before the start-up. -
Page 11: Installation And Commissioning
Safety Manual SIL KCD2-STC-(Ex)1.HC(.SP), HiC2025HC 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 KCD2-STC-(Ex)1.HC(.SP), HiC2025HC Proof Test Proof Test Proof Test Procedure According to IEC 61508-2 a recurring proof test shall be undertaken to reveal potentially dangerous failures that are otherwise not detected by diagnostic tests. The functionality of the subsystem must be verified at periodic intervals depending on the applied PFD in accordance with the data provided in this manual. - Page 13 Safety Manual SIL KCD2-STC-(Ex)1.HC(.SP), HiC2025HC Proof Test Active Passive input input KCD2-STC-Ex1.HC Input sensor Input sensor (2-wire Tx (4-wire Tx Current output or loop powered) externally Voltage output or powered) Current sink 4 mA ... 20 mA Logic solver analog 4 mA ...
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Page 14: Abbreviations
Safety Manual SIL KCD2-STC-(Ex)1.HC(.SP), HiC2025HC Abbreviations Abbreviations Distributed Control System Emergency Shutdown Failure In Time FMEDA Failure Mode, Effects and Diagnostics Analysis Probability of safe failure λ Probability of dangerous detected failure λ Probability of dangerous undetected failure λ Probability of failures of components in the safety path that have λ... - Page 15 Safety Manual SIL KCD2-STC-(Ex)1.HC(.SP), HiC2025HC Notes...
- Page 16 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/contact www.pepperl-fuchs.com Subject to modifications Copyright PEPPERL+FUCHS • Printed in Germany TDOCT-2750_ENG 07/2012...