Related Manuals for Pepperl+Fuchs KCD2-RR2-Ex1
Summary of Contents for Pepperl+Fuchs KCD2-RR2-Ex1
- Page 1 PROCESS AUTOMATION MANUAL Functional Safety Resistance Repeater KCD2-RR2-Ex1(.SP) ISO9001...
- Page 2 Functional Safety KCD2-RR2-Ex1(.SP) 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 KCD2-RR2-Ex1(.SP) 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 KCD2-RR2-Ex1(.SP) 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. -
Page 6: Symbols Used
Functional Safety KCD2-RR2-Ex1(.SP) 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 KCD2-RR2-Ex1(.SP) Product Description Product Description Function This isolated barrier is used for intrinsic safety applications. It transfers resistance values of RTDs or potentiometers from hazardous areas to safe areas. The device supports 2-, 3-, or 4-wire technique depending on the required accuracy. -
Page 8: Planning
Functional Safety KCD2-RR2-Ex1(.SP) 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 KCD2-RR2-Ex1(.SP) Planning Assumptions The following assumptions have been made during the FMEDA: • Failure rate based on the Siemens standard SN 29500. • Failure rates are constant, wear is not considered. • External power supply failure rates are not included. -
Page 10: Safety Function And Safe State
Functional Safety KCD2-RR2-Ex1(.SP) Planning Safety Function and Safe State Safety Function The device transfers analog signals from the input to the output with a tolerance of 2 % related to the full signal range. The attached PLC must recognize a fault when the resistance drops below 15 or rises above 400 ... -
Page 11: Characteristic Safety Values
Functional Safety KCD2-RR2-Ex1(.SP) Planning Characteristic Safety Values Parameters Characteristic values Assessment type Full assessment Device type Mode of operation Low demand mode or high demand mode Safety function Transfer of the resistance values with an accuracy of 2%. 0 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 KCD2-RR2-Ex1(.SP) 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 KCD2-RR2-Ex1(.SP) 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 KCD2-RR2-Ex1(.SP) Operation Proof Test Procedure 1. Put out of service the entire safety loop. Protect the application by means of other measures. 2. Connect a current source to terminals 7 and 8, see figure. Depending on the application, the current source should supply 200 µA to 10 mA.
- Page 16 Functional Safety KCD2-RR2-Ex1(.SP) Operation KCD2-RR-Ex1(.SP) 4 mA to 20 mA Multimeter supply supply 24 V DC Zone 0, 1, 2 Zone 2 Power Supply Div. 1, 2 Div. 2 supply Figure 5.1 Proof test set-up for KCD2-RR2-Ex1(.SP)
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Page 17: Maintenance And Repair
Functional Safety KCD2-RR2-Ex1(.SP) 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. -
Page 18: List Of Abbreviations
Functional Safety KCD2-RR2-Ex1(.SP) 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 19 Functional Safety KCD2-RR2-Ex1(.SP) Notes...
- Page 20 PROCESS AUTOMATION – PROTECTING YOUR PROCESS Worldwide Headquarters Pepperl+Fuchs Group 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-6482A Copyright PEPPERL+FUCHS • Printed in Germany 11/2019...