Related Manuals for Pepperl+Fuchs KFD2-STC4-Ex Series
Summary of Contents for Pepperl+Fuchs KFD2-STC4-Ex Series
- Page 1 www.acornfiresecurity.com PROCESS AUTOMATION SAFETY MANUAL SIL SMART Transmitter Power Supply KFD2-STC4-(Ex)*, KFD2-STV4-(Ex)*, KFD2-CR4-(Ex)* ISO9001 www.acornfiresecurity.com...
- Page 2 www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* 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
www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* 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 of Operation .............6 2.1.2 High Demand or Continuous Mode of Operation........6 2.1.3 Safe Failure Fraction ................6 Assumptions ....................7 Safety Function and Safe State..............8... -
Page 4: Introduction
(which lead to faults or affect the safety functions), can damage property and the environment or cause personal injury, for which Pepperl+Fuchs GmbH accepts no liability. The devices have been developed, manufactured, and tested according to the applicable safety standards. -
Page 5: Manufacturer Information
Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Introduction Manufacturer Information Pepperl+Fuchs GmbH Lilienthalstrasse 200, 68307 Mannheim, Germany Up to SIL2 KFD2-CR4-(Ex)* KFD2-STC4-(Ex)* KFD2-STV4-(Ex)* Up to SIL3 KFD2-CR4-(Ex)1.2O* KFD2-STC4-(Ex)1.2O* KFD2-STV4-(Ex)1.2O* The stars replace a combination of characters, depending on the product. -
Page 6: Planning
www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Planning Planning System Structure 2.1.1 Low Demand Mode of Operation 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
www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Planning Assumptions The following assumptions have been made during the FMEDA analysis: Only one input and one output are part of the considered safety function (only 2-channel version). Failure rate based on the Siemens SN29500 data base. ... -
Page 8: Safety Function And Safe State
www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Planning Since the loop has a Hardware Fault Tolerance of 0 and it is a type A component, the SFF must be > 90 % according to table 2 of IEC 61508-2 for a SIL3 (sub)system. - Page 9 www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Planning Functional Safety Wiring Configuration for KFD2-***-(Ex)1.2O* Devices KFD2-***-(Ex)1.2O* DCS 1/ SIL2 transmitter ESD system 1 Output 1 Input A DCS 2/ ESD system 2 Output 2 Input B Figure 2.1 SIL2 application for KFD2-***-(Ex)1.2O* devices KFD2-***-(Ex)1.2O* SIL3 transmitter ESD system...
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Page 10: Characteristic Safety Values
www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Planning Characteristic Safety Values KFD2-CR4-(Ex)1, KFD2-STC4-(Ex)1, KFD2-STC4-(Ex)1-3, KFD2-STC4-(Ex)1-Y*, KFD2-STV4-(Ex)1-1, KFD2-STV4-(Ex)1-2 Parameters acc. to IEC 61508 Values Assessment type FMEDA report Device type Demand mode Low Demand Mode or High Demand Mode Safety function Transfer of analog values 192 FIT ... - Page 11 www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Planning KFD2-CR4-(Ex)1.2O, KFD2-STC4-(Ex)1.2O, KFD2-STC4-(Ex)1.2O-3, KFD2-STC4-(Ex)1.2O-Y*, KFD2-STV4-(Ex)1.2O-1, KFD2-STV4-(Ex)1.2O-2 Parameters acc. to IEC 61508 Values Assessment type FMEDA report Device type Demand mode Low Demand Mode or High Demand Mode Safety function Transfer of analog values Input and output function Input Output...
- Page 12 www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Planning KFD2-CR4-(Ex)2, KFD2-STC4-(Ex)2, KFD2-STC4-(Ex)2-3, KFD2-STC4-(Ex)2-Y*, KFD2-STV4-(Ex)2-1, KFD2-STV4-(Ex)2-2 Parameters acc. to IEC 61508 Values Assessment type FMEDA report Device type Demand mode Low Demand Mode or High Demand Mode Safety function Transfer of analog values 165 FIT ...
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Page 13: Safety Recommendation
www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Safety Recommendation Safety Recommendation Interfaces The device has the following interfaces. For corresponding terminals see data sheet. Safety relevant interfaces: Input I, output I KFD2-CR4-(Ex)1, KFD2-STC4-(Ex)1, KFD2-STC4-(Ex)1-3, KFD2-STC4-(Ex)1-Y*, KFD2-STV4-(Ex)1-1, KFD2-STV4-(Ex)1-2 Input I, output I, output II KFD2-CR4-(Ex)1.2O, KFD2-STC4-(Ex)1.2O, KFD2-STC4-(Ex)1.2O-3, KFD2-STC4-(Ex)1.2O-Y*, KFD2-STV4-(Ex)1.2O-1, KFD2-STV4-(Ex)1.2O-2... -
Page 14: Installation And Commissioning
Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* 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 15: Proof Test
www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* 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 16 www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Proof Test Proof Test for all Channels Step Set input Measurement point value (mA) Output value (mA) Output value (V) for Output value (V) for for STC4 and CR4 STV4 devices, STV4 devices, devices -1 version -2 version 20.0...
- Page 17 www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Proof Test KFD2-STC4-Ex2-3 Signal calibration 4 mA ... 20 mA Multimeter (mA) 250 Ω Multimeter (mA) 250 Ω 24 V DC supply Zone 0, 1, 2 Zone 2 Power Div. 1, 2 Div. 2 supply Figure 4.2 Proof test set-up for KFD2-STC4-(Ex)*-3 and KFD2-STC4-(Ex)*-Y*...
- Page 18 www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Proof Test Proof Test for Versions with Splitter Functionality (1.2O) Step Set input Measurement point value (mA) Values for Outputs I Values for Outputs I Values for Outputs I and II (mA) for and II (V) for STV4 and II (V) for STV4 STC4 and CR4 devices, -1 version...
- Page 19 www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Proof Test Signal calibration KFD2-STC4-Ex1.2O-3 4 mA ... 20 mA Multimeter (mA) 250 Ω Multimeter (mA) 250 Ω 24 V DC supply Zone 0, 1, 2 Zone 2 Power Div. 1, 2 Div. 2 supply Figure 4.5 Proof test set-up for KFD2-STC4-(Ex)1.2O-3 and KFD2-STC4-(Ex)1.2O-Y*...
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Page 20: Abbreviations
www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Abbreviations Abbreviations Distributed Control System Emergency Shutdown Failure In Time in 10 FMEDA Failure Mode, Effects and Diagnostics Analysis Probability of safe failure Probability of dangerous detected failure Probability of dangerous undetected failure ... - Page 21 www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Notes www.acornfiresecurity.com...
- Page 22 www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Notes www.acornfiresecurity.com...
- Page 23 www.acornfiresecurity.com Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)* Notes www.acornfiresecurity.com...