Pepperl+Fuchs KFD2-UT2 Series Sil Safety Manual
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Pepperl+Fuchs KFD2-UT2 Series Sil Safety Manual

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PROCESS AUTOMATION
SAFETY MANUAL SIL
TEMPERATURE
CONVERTER
KFD2-UT2-(Ex)*, HiD2082
ISO9001
2

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Summary of Contents for Pepperl+Fuchs KFD2-UT2 Series

  • Page 1 PROCESS AUTOMATION SAFETY MANUAL SIL TEMPERATURE CONVERTER KFD2-UT2-(Ex)*, HiD2082 ISO9001...
  • Page 2 SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 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"...

  • Page 3: Table Of Contents

    SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Contents 1 Introduction................. 4 General Information ..................4 Intended Use ....................4 Manufacturer Information ................5 Relevant Standards and Directives ...............6 2 Planning ................7 System Structure...................7 2.1.1 Low Demand Mode ..................7 2.1.2 High Demand Mode .................7 2.1.3 Safe Failure Fraction.................7 Assumptions ....................8 Safety Function and Safe State ..............9 Characteristic Safety Values ...............10...

  • 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

    The device is easily programmed by the use of a DIP switches on the side of the unit and with the PACTware configuration software. This module mounts on a HiD Termination Board. Manufacturer Information Pepperl+Fuchs GmbH Lilienthalstrasse 200 68307 Mannheim/Germany KFD2-UT2-(Ex)*, HiD2082 Up to SIL2...

  • Page 6: Relevant Standards And Directives

    SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Introduction Relevant Standards and Directives Device specific standards and directives Functional safety IEC 61508 part 1 – 7, edition 2000: ■ Standard of functional safety of electrical/electronic/programmable electronic safety-related systems (product manufacturer) Electromagnetic compatibility: ■ - EN 61326-1:2006 - NE 21:2006 System specific standards and directives...

  • Page 7: Planning

    SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 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 8: Assumptions

    SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Planning Assumptions The following assumptions have been made during the FMEDA analysis: Failure rates are constant, wear out mechanisms are not included. ■ Propagation of failures is not relevant. ■ Sufficient tests are performed prior to shipment to verify the absence of ■...

  • Page 9: Safety Function And Safe State

    SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Planning During the absence of the device for repairing, measures have to be taken to ■ ensure the safety function (for example: substitution by an equivalent device). For the calculation it was also assumed that the indication of a dangerous ■...

  • Page 10: Characteristic Safety Values

    SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Planning Characteristic Safety Values The following tables contain no data for the SFF, since this performance value has to be calculated with consideration of the connected field device. KFD2-UT2-(Ex)* Parameters acc. to IEC 61508 Variables Device type Demand mode Low Demand Mode...
  • Page 11 SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Planning HiD2082 Parameters acc. to IEC 61508 Variables Device type Demand mode Low Demand Mode Safety function Transfer of analog value 2 (proven-in-use acc. to EN 61511) 75 FIT λ 328.6 FIT λ 98.1 FIT λ...

  • Page 12: Safety Recommendation

    SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Safety Recommendation Safety Recommendation Interfaces The device has the following interfaces. For corresponding terminals see data sheet. Safety relevant interfaces: ■ • input I, input II (only 2-channel version) • output I, output II (only 2-channel version) Non-safety relevant interfaces: programming socket, collective error output ■...

  • Page 13: Installation And Commissioning

    SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 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 14: Proof Test

    SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Proof Test Proof Test General 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 stated in the "Characteristic Safety Values"...
  • Page 15 SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Proof Test Thermocouple Input (TC) KFD2-UT2-Ex2 Sim. 110Ω Sim. 110Ω 24 V DC Zone 0, 1, 2 Zone 2 24 V DC Div. 1, 2 Div. 2 Power Rail Figure 4.1 Example proof test set-up for KFD2-UT2-(Ex)* (TC) Usage in Zone 0, 1, 2/Div.
  • Page 16 SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Proof Test Additionally the loop diagnosis shall be tested to prove that the fault signalling via the current output is working correctly. The output current in the event of a failure depends on the device configuration. Please record this configuration and the resulting expected fault signalling current in the test report.
  • Page 17 SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Proof Test RTD Input KFD2-UT2-Ex2 24 V DC Zone 0, 1, 2 Zone 2 24 V DC Div. 1, 2 Div. 2 Power Rail Figure 4.2 Example proof test set-up for KFD2-UT2-(Ex)* (TC) Usage in Zone 0, 1, 2/Div. 1, 2 only for KFD2-UT2-Ex1 and KFD2-UT2-Ex2 1-channel versions KFD2-UT2-1 and KFD2-UT2-Ex1 have only one channel.
  • Page 18 SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Proof Test Voltage Input (mV) KFD2-UT2-Ex2 24 V DC Zone 0, 1, 2 Zone 2 24 V DC Div. 1, 2 Div. 2 Power Rail Figure 4.3 Example proof test set-up for KFD2-UT2-(Ex)* (TC) Usage in Zone 0, 1, 2/Div. 1, 2 only for KFD2-UT2-Ex1 and KFD2-UT2-Ex2 1-channel versions KFD2-UT2-1 and KFD2-UT2-Ex1 have only one channel.
  • Page 19 SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Proof Test Potentiometer Input KFD2-UT2-Ex2 50 % 100 % 24 V DC Zone 0, 1, 2 Zone 2 24 V DC Div. 1, 2 Div. 2 Power Rail Figure 4.4 Example proof test set-up for KFD2-UT2-(Ex)* (TC) Usage in Zone 0, 1, 2/Div.

  • Page 20: Proof Test Procedure For Hid2082

    SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Proof Test Test Variation for Voltage Output/Current Sink Applications Voltage Output Instead of an current meter, a voltmeter has to be connected to the outputs. The input values shall be chosen that they represent 1 V, 2.5 V and 5 V. The proof test is passed if the output values are within 2 % of the output span.
  • Page 21 SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Proof Test Thermocouple Input (TC) HiD2082 110Ω Sim. 110Ω Sim. Zone 0, 1, 2 24 V DC Div. 1, 2 Figure 4.5 Proof test set-up for HiD2082 (TC) Additional set up: 110 Ω fixed resistor 1.
  • Page 22 SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Proof Test Additionally the loop diagnosis shall be tested to prove that the fault signalling via the current output is working correctly. The output current in the event of a failure depends on the device configuration. Please record this configuration and the resulting expected fault signalling current in the test report.
  • Page 23 SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Proof Test RTD Input HiD2082 Zone 0, 1, 2 24 V DC Div. 1, 2 Figure 4.6 Proof test set-up for HiD2082 (RTD) 1. Connect RTD simulator to terminals, depending on the application: • for 4-wire: terminals 1, 2, 5, 4 (channel I) and 7, 3, 6, 8 (channel II) •...
  • Page 24 SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Proof Test Voltage Input (mV) HiD2082 Zone 0, 1, 2 24 V DC Div. 1, 2 Figure 4.7 Proof test set-up for HiD2082 (mV) 1. Connect mV source to terminals 2 and 5 (channel I) and 3 and 6 (channel II). 2.
  • Page 25 SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Proof Test Potentiometer Input HiD2082 50 % 100 % Zone 0, 1, 2 24 V DC Div. 1, 2 Figure 4.8 Proof test set-up for HiD2082 (Potentiometer) The resistor values which are used to simulate the potentiometer shall be chosen so that they represent the full scale value of the potentiometer when connected in series.
  • Page 26 SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 Proof Test Test Variation for Voltage Output/Current Sink Applications Voltage Output Instead of an current meter, a voltmeter has to be connected to the outputs. The input values shall be chosen that they represent 1 V, 2.5 V and 5 V. The proof test is passed if the output values are within 2 % of the output span.

  • Page 27: Abbreviations

    SAFETY MANUAL SIL KFD2-UT2-(EX)*, HID2082 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 Safety Instrumented System Proof Test Interval proof...
  • Page 28 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 TDOCT-2078AENG Subject to modifications 09/2011 Copyright PEPPERL+FUCHS • Printed in Germany...

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