Related Manuals for Pepperl+Fuchs KFD2-VR4-Ex1.26
Summary of Contents for Pepperl+Fuchs KFD2-VR4-Ex1.26
- Page 1 PROCESS AUTOMATION MANUAL Functional Safety Voltage Repeater KFD2-VR4-Ex1.26 ISO9001...
- Page 2 Functional Safety KFD2-VR4-Ex1.26 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-VR4-Ex1.26 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-VR4-Ex1.26 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-VR4-Ex1.26 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-VR4-Ex1.26 Product Description Product Description Function This isolated barrier is used for intrinsic safety applications. It provides a floating output to power a vibration sensor (e. g. Bently Nevada) or an acceleration sensor in a hazardous area and transfers the voltage signal from that sensor to the non-hazardous area. -
Page 8: Planning
Functional Safety KFD2-VR4-Ex1.26 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 9: Assumptions
Functional Safety KFD2-VR4-Ex1.26 Planning Assumptions The following assumptions have been made during the FMEDA: • The device will be used under average industrial ambient conditions comparable to the classification "stationary mounted" according to MIL-HDBK-217F. Alternatively, operating stress conditions typical of an industrial field environment similar to IEC/EN 60654-1 Class C with an average temperature over a long period of time of 40 ºC may be assumed. -
Page 10: Safety Function And Safe State
Functional Safety KFD2-VR4-Ex1.26 Planning Safety Function and Safe State Safety Function The safety function of the device is fulfilled, as long as the output repeats the input voltage (0 V ... -20 V) with a tolerance of ±2 %. Safe State The safe state is defined, as the output being de-energized. -
Page 11: Characteristic Safety Values
Functional Safety KFD2-VR4-Ex1.26 Planning Characteristic Safety Values Parameters Characteristic values Assessment type FMEDA report Device type A (only hardware) Mode of protection Low demand mode or high demand mode SIL (hardware) + 338 FIT 0 FIT 103 FIT ... -
Page 12: 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 13: Mounting And Installation
Functional Safety KFD2-VR4-Ex1.26 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 14: Operation
Functional Safety KFD2-VR4-Ex1.26 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 15 Functional Safety KFD2-VR4-Ex1.26 Operation Proof Test Procedure A 1. Prepare the test set-up, see next figure. 2. Connect an input load of 2.1 k to terminals 4+ and 5-. 3. Connect an output load of 10 k to terminals 7- and 8+.
- Page 16 Functional Safety KFD2-VR4-Ex1.26 Operation KFD2-VR4-Ex1.26 Multimeter (V ) Input voltage Output load 10 kΩ Input load 2.1 kΩ 24 V DC 24 V DC Power Rail Zone 0, 1, 2 Zone 2 Div. 1, 2 Div. 2 Figure 5.1 Set-up for proof tests A and B...
- Page 17 Functional Safety KFD2-VR4-Ex1.26 Operation Proof Test Procedure C 1. Prepare the test set-up, see figure below. 2. Connect an input load of 1.8 k to terminals 1- and 4+. 3. Measure the voltage load across the resistor and the current derived from it.
- Page 18 Functional Safety KFD2-VR4-Ex1.26 Operation Proof Test Procedure D 1. Prepare the test set-up, see figure below. 2. Connect an input load of 1.8 k to terminals 3- and 4+. 3. Measure the voltage load across the resistor and the current derived from it.
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Page 19: Maintenance And Repair
Functional Safety KFD2-VR4-Ex1.26 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 20: List Of Abbreviations
Functional Safety KFD2-VR4-Ex1.26 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 21 Functional Safety KFD2-VR4-Ex1.26 Notes...
- Page 22 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-2518B Copyright PEPPERL+FUCHS • Printed in Germany 03/2018...