Related Manuals for Pepperl+Fuchs KFD2-RSH-1.2D.FL2
Summary of Contents for Pepperl+Fuchs KFD2-RSH-1.2D.FL2
- Page 1 PROCESS AUTOMATION ORIGINAL INSTRUCTIONS Functional Safety Relay Module KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 ISO9001 PL e...
- Page 2 Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 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...
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Page 3: Table Of Contents
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Content Introduction ........... 4 Content of this Document. -
Page 4: Introduction
Additionally, the following parts may belong to the documentation, if applicable: • EU-type examination certificate • EU declaration of conformity • Attestation of conformity • Certificates • Control drawings • FMEDA report • Assessment report • Additional documents For more information about Pepperl+Fuchs products with functional safety, see www.pepperl- fuchs.com/sil. -
Page 5: Safety Information
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Introduction Safety Information Target Group, Personnel Responsibility for planning, assembly, commissioning, operation, maintenance, and dismounting lies with the plant operator. Only appropriately trained and qualified personnel may carry out mounting, installation, commissioning, operation, maintenance, and dismounting of the product. The personnel must have read and understood the instruction manual and the further documentation. -
Page 6: Symbols Used
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Introduction Symbols Used This document contains symbols for the identification of warning messages and of informative messages. Warning Messages You will find warning messages, whenever dangers may arise from your actions. It is mandatory that you observe these warning messages for your personal safety and in order to avoid property damage. -
Page 7: Product Description
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Product Description Product Description Function General This signal conditioner provides the galvanic isolation between field circuits and control circuits. The de-energized to safe (DTS) function is permitted for SIL 3 and PL e applications. An internal fault or a line fault is signalized by the impedance change of the relay contact input and an additional relay contact output. -
Page 8: Standards And Directives For Functional Safe
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Product Description Standards and Directives for Functional Safe Device-specific standards and directives Functional safety IEC/EN 61508, part 1 – 2, edition 2010: Functional safety of electrical/electronic/programmable electronic safety-related systems (manufacturer) Machinery Directive • EN/ISO 13849, part 1, edition 2015:... -
Page 9: Planning
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Planning Planning System Structure 3.1.1 Low Demand Mode of Operation If there are two control 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 10: Assumptions
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Planning Assumptions The following assumptions have been made during the FMEDA: • Failure rates are constant, wear is not considered. • Failure rate based on the Siemens standard SN29500. • The safety-related device is considered to be of type A device with a hardware fault tolerance of 0. -
Page 11: Safety Function And Safe State
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Planning Safety Function and Safe State Safety Function Whenever the input of the device is de-energized, the DTS output is not conducting. Safe State In the safe state of the safety function the DTS output is open (non-conducting). -
Page 12: Characteristic Safety Values
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Planning Characteristic Safety Values Parameters Characteristic values Assessment type and documentation Full assessment Device type Mode of operation Low demand mode or high demand mode Safety function Output is de-energized (DTS, de-energized to safe) SIL (SC) -
Page 13: Useful Lifetime
As noted in DIN EN 61508-2:2011 note N3, appropriate measures taken by the manufacturer and plant operator can extend the useful lifetime. Our experience has shown that the useful lifetime of a Pepperl+Fuchs product can be higher if the ambient conditions support a long life time, for example if the ambient temperature is significantly below 60 °C. -
Page 14: Mounting And Installation
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Mounting and Installation Mounting and Installation Mounting and Installing the Device 1. Observe the safety instructions in the instruction manual. 2. Observe the information in the manual. 3. Observe the requirements for the safety loop. 4. Connect the device only to devices that are suitable for this safety application. - Page 15 Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Mounting and Installation 4.3.1 Output Configuration Switch Line fault detection Internal fault detection disabled disabled enabled disabled not used enabled enabled Table 4.1...
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Page 16: Operation
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Operation Operation Danger! Danger to life from missing safety function If the safety loop is put out of service, the safety function is no longer guaranteed. • Do not deactivate the device. • Do not bypass the safety function. -
Page 17: Internal Diagnosis
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Operation Internal Diagnosis With enabled internal fault detection a diagnostic coverage of 95.3 % is achieved. Monitor one of the 4 possible ways of fault detection: • Input impedance change • Fault indication output • Collective error message output •... -
Page 18: Proof Test Procedure
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Operation Proof Test Procedure According to IEC/EN 61508-2 a recurring proof test shall be undertaken to reveal potential dangerous failures that are not detected otherwise. Check the function of the subsystem at periodic intervals depending on the applied PFD accordance with the characteristic safety values. - Page 19 Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Operation Test No. Input Output V = 0 V DC between terminals 7+ and 8- Wait at least 2 seconds. • LED OUT is off. • LED FLT is off V = 24 V DC between terminals 7+ and 8- Wait at least 2 seconds.
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Page 20: Application Examples
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Operation Application Examples 5.3.1 Standard Application for Dual Pole Switching For a switching application, the device has to be attached to the process control system and the load the following way. KFD2-RSH-1.2D.FL2 24 V DC Fault... - Page 21 Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Operation 5.3.2 Application with Fault Indication Output in the Signal Loop of the Dual Pole Switching Some process control systems are not working with test pulses or with specific test pulses that do not recognize the impedance change of the device output signaling a line fault. Where the output of the process control system can detect an open circuit in the signal loop, the fault indication output of the device may be put in series to the input.
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Page 22: Maintenance And Repair
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 Maintenance and Repair Maintenance and Repair Danger! Danger to life from missing safety function If the safety loop is put out of service, the safety function is no longer guaranteed. • Do not deactivate the device. -
Page 23: List Of Abbreviations
Functional Safety KFD2-RSH-1.2D.FL2, KFD2-RSH-1.2D.FL3 List of Abbreviations List of Abbreviations 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 24 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 DOCT-5815B Copyright PEPPERL+FUCHS • Printed in Germany 06/2018...