Pepperl+Fuchs KFD2-CD-1.32 Series Manual

Pepperl+Fuchs KFD2-CD-1.32 Series Manual

Functional safety, current/voltage driver

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PROCESS AUTOMATION
MANUAL
Functional Safety
Current/Voltage Driver
KFD2-CD-(Ex)1.32-**
ISO9001
2

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Summary of Contents for Pepperl+Fuchs KFD2-CD-1.32 Series

  • Page 1 PROCESS AUTOMATION MANUAL Functional Safety Current/Voltage Driver KFD2-CD-(Ex)1.32-** ISO9001...
  • Page 2 Functional Safety KFD2-CD-(Ex)1.32-** 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

    Functional Safety KFD2-CD-(Ex)1.32-** 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-CD-(Ex)1.32-** 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-CD-(Ex)1.32-** 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-CD-(Ex)1.32-** Product Description Product Description Function KFD2-CD-1.32 This signal conditioner provides the galvanic isolation between field circuits and control circuits. The device supplies 2-wire transmitters. The device transfers a current signal from the control side to I/P converters, electrical valves and positioners located in the field side.
  • Page 8: Marking

    Functional Safety KFD2-CD-(Ex)1.32-** Product Description Marking Pepperl+Fuchs GmbH Lilienthalstraße 200, 68307 Mannheim, Germany Internet: www.pepperl-fuchs.com KFD2-CD-1.32 Up to SIL 2 KFD2-CD-Ex1.32-0, KFD2-CD-Ex1.32-1, KFD2-CD-Ex1.32-3, KFD2-CD-Ex1.32-6, KFD2-CD-Ex1.32-10, KFD2-CD-Ex1.32-12, KFD2-CD-Ex1.32-13, KFD2-CD-Ex1.32-15, KFD2-CD-Ex1.32-21 Standards and Directives for Functional Safety Device specific standards and directives Functional safety IEC/EN 61508, part 1 –...
  • Page 9: Planning

    Functional Safety KFD2-CD-(Ex)1.32-** 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-CD-(Ex)1.32-** Planning Assumptions The following assumptions have been made during the FMEDA: • Failure rate based on the Siemens standard SN29500. • Failure rates are constant, wear is not considered. • External power supply failure rates are not included. •...
  • Page 11: Safety Function And Safe State

    Functional Safety KFD2-CD-(Ex)1.32-** Planning Safety Function and Safe State Safety Function The device transfers analog signals from the input to the output with a deviation of less than 2 %. Device Input signal Output signal KFD2-CD-1.32, KFD2-CD-Ex1.32-0 0 mA to 20 mA 0 mA to 20 mA KFD2-CD-Ex1.32-1 4 mA to 20 mA...
  • Page 12: Characteristic Safety Values

    Functional Safety KFD2-CD-(Ex)1.32-** Planning Characteristic Safety Values Parameters Characteristic values Assessment type and Full assessment documentation Device type A (only hardware) Mode of operation Low demand mode, high demand mode or continuous mode Safety function Transfer of analog signals from Transfer of analog signals from the the input to the output with a to the output with a deviation of less...
  • 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-CD-(Ex)1.32-** 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. 5.
  • Page 15: Operation

    Functional Safety KFD2-CD-(Ex)1.32-** 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 16 Functional Safety KFD2-CD-(Ex)1.32-** Operation Proof Test Procedure 1. Put the entire safety loop out of service. Protect the application by means of other measures. 2. Prepare a test set-up, see figures below. 3. Test the devices. Verify the current/voltage values as given in table below. 4.
  • Page 17: Maintenance And Repair

    Functional Safety KFD2-CD-(Ex)1.32-** Maintenance and Repair Maintenance and Repair Danger! Danger to life from missing safety function Changes to the device or a defect of the device can lead to device malfunction. The function of the device and the safety function is no longer guaranteed. Do not repair, modify, or manipulate the device.
  • Page 18: List Of Abbreviations

    Functional Safety KFD2-CD-(Ex)1.32-** 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  Probability of failures of components in the safety loop that have ...
  • Page 19 Functional Safety KFD2-CD-(Ex)1.32-** Notes...
  • Page 20 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-6209 Copyright PEPPERL+FUCHS • Printed in Germany 11/2018...

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