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Table of Contents
Related Manuals for Pepperl+Fuchs KFD2-SR2-Ex Series
Summary of Contents for Pepperl+Fuchs KFD2-SR2-Ex Series
- Page 1 Functional Safety Switch Amplifier KFD2-SR2-Ex*.W(.LB) Manual ISO9001...
- Page 2 Phone: +49 621 776 - 0 E-mail: info@de.pepperl-fuchs.com North American Headquarters Pepperl+Fuchs Inc. 1600 Enterprise Parkway Twinsburg, Ohio 44087 Phone: +1 330 425-3555 E-mail: sales@us.pepperl-fuchs.com Asia Headquarters Pepperl+Fuchs Pte. Ltd. P+F Building 18 Ayer Rajah Crescent Singapore 139942 Phone: +65 6779-9091 E-mail: sales@sg.pepperl-fuchs.com https://www.pepperl-fuchs.com...
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Page 3: Table Of Contents
Functional Safety KFD2-SR2-Ex*.W(.LB) Contents Introduction ............5 Content of this Document . - Page 4 Functional Safety KFD2-SR2-Ex*.W(.LB) Contents...
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Page 5: 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 6: Safety Information
Functional Safety KFD2-SR2-Ex*.W(.LB) 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 7: Symbols Used
Functional Safety KFD2-SR2-Ex*.W(.LB) 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 8: Product Description
Product Description Product Description Validity This manual is only valid for devices with a part number greater than #203350. Contact your Pepperl+Fuchs representative for information about older devices. Function KFD2-SR2-Ex1.W This isolated barrier is used for intrinsic safety applications. The device transfers digital signals from NAMUR sensors or dry contacts from the hazardous area to the non-hazardous area. -
Page 9: Interfaces
• Non-safety relevant interfaces: fault indication output Note For corresponding connections see datasheet. Marking Pepperl+Fuchs Group Lilienthalstraße 200, 68307 Mannheim, Germany Internet: www.pepperl-fuchs.com KFD2-SR2-Ex1.W, KFD2-SR2-Ex2.W, KFD2-SR2-Ex1.W.LB Up to SIL 2 The *-marked letters of the type code are placeholders for versions of the device. -
Page 10: Planning
Functional Safety KFD2-SR2-Ex*.W(.LB) 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 11: Assumptions
Functional Safety KFD2-SR2-Ex*.W(.LB) 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 SN 29500. • The safety-related device is considered to be of type A device with a hardware fault tolerance of 0. -
Page 12: Safety Function And Safe State
Functional Safety KFD2-SR2-Ex*.W(.LB) Planning Safety Function and Safe State Safe State In the safe state of the safety function the output is de-energized. Safety Function for 1-channel Devices KFD2-SR2-Ex1.W S1 position I (normal The safe state is reached if the NAMUR sensor input operation) is in the off state. - Page 13 Functional Safety KFD2-SR2-Ex*.W(.LB) Planning LB/SC Diagnosis If the line fault detection is active (mandatory, see datasheet), the input loops of all device versions are supervised. The line fault detection is activated if switch S3 is in position I. The related safety function is defined as the outputs are de-energized (safe state), if there is a line fault detected.
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Page 14: Characteristic Safety Values
Functional Safety KFD2-SR2-Ex*.W(.LB) Planning Characteristic Safety Values Parameters Characteristic values Assessment type and Full assessment documentation Device type Mode of operation Low demand mode or high demand mode Safety function Output is de-energized 113 FIT 0 FIT 37.8 FIT ... -
Page 15: Useful Lifetime
Functional Safety KFD2-SR2-Ex*.W(.LB) Planning Useful Lifetime Although a constant failure rate is assumed by the probabilistic estimation this only applies provided that the useful lifetime of components is not exceeded. Beyond this useful lifetime, the result of the probabilistic estimation is meaningless as the probability of failure significantly increases with time. -
Page 16: Mounting And Installation
Functional Safety KFD2-SR2-Ex*.W(.LB) Mounting and Installation Mounting and Installation Mounting and Installing the Device Observe the safety instructions in the instruction manual. Observe the information in the manual. Observe the requirements for the safety loop. Connect the device only to devices that are suitable for this safety application. Check the safety function to ensure the expected output behavior. -
Page 17: Operation
Functional Safety KFD2-SR2-Ex*.W(.LB) 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 18 Functional Safety KFD2-SR2-Ex*.W(.LB) Operation 5.1.1 Procedure for Manual Proof Test Equipment required: • Digital multimeter with an accuracy of 0.1 % Use for the proof test of the intrinsic safety side of the device a special digital multimeter for intrinsically safe circuits. If intrinsically safe circuits are operated with non-intrinsically safe circuits, they must no longer be used as intrinsically safe circuits.
- Page 19 Functional Safety KFD2-SR2-Ex*.W(.LB) Operation Multimeter KFD2-SR2-Ex1.W (mA) 240 :/2.5 W 24 V DC Multimeter (mA) Multimeter (mA) 24 V DC Zone 0, 1, 2 Zone 2 Power I supply Supply Div. 2 Div. 1, 2 supply Figure 5.1 Proof test set-up for KFD2-SR2-Ex1.W Multimeter KFD2-SR2-Ex1.W.LB (mA)
- Page 20 Functional Safety KFD2-SR2-Ex*.W(.LB) Operation Multimeter KFD2-SR2-Ex2.W (mA) 240 :/2.5 W 24 V DC Multimeter (mA) Multimeter (mA) 240 :/2.5 W 24 V DC Multimeter (mA) Multimeter (mA) 24 V DC Zone 0, 1, 2 Zone 2 Power I supply Supply Div.
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Page 21: Maintenance And Repair
Functional Safety KFD2-SR2-Ex*.W(.LB) 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 22: List Of Abbreviations
Functional Safety KFD2-SR2-Ex*.W(.LB) List of Abbreviations List of Abbreviations Diagnostic Coverage of dangerous faults Failure In Time in 10 Failure Mode, Effects, and Diagnostics Analysis FMEDA Probability of safe failure Probability of dangerous detected failure Probability of dangerous undetected failure ... - Page 23 Functional Safety KFD2-SR2-Ex*.W(.LB) Notes...
- Page 24 Pepperl+Fuchs Quality Download our latest policy here: www.pepperl-fuchs.com/quality www.pepperl-fuchs.com © Pepperl+Fuchs · Subject to modifications Printed in Germany / DOCT-6656A...