Related Manuals for Pepperl+Fuchs KFD2-UT2 Series
Summary of Contents for Pepperl+Fuchs KFD2-UT2 Series
- Page 1 PROCESS AUTOMATION MANUAL Functional Safety Temperature Converter KFD2-UT2-(Ex)*(-1) ISO9001...
- Page 2 Functional Safety KFD2-UT2-(Ex)*(-1) 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"...
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Page 3: Table Of Contents
Functional Safety KFD2-UT2-(Ex)*(-1) 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-UT2-(Ex)*(-1) 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-UT2-(Ex)*(-1) 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-UT2-(Ex)*(-1) Product Description Product Description Function KFD2-UT2-*(-1) This signal conditioner provides the galvanic isolation between field circuits and control circuits. The device converts the signal of a resistance thermometer, thermocouple, or potentiometer to a proportional output current. The device can also be configured as a signal splitter. The removable terminal block K-CJC-** is available as an accessory for internal cold junction compensation of thermocouples. -
Page 8: Interfaces
Output I, output II (only 2-channel version) • Non-safety relevant interfaces: programming socket, collective error message output Note For corresponding connections see datasheet. Marking Pepperl+Fuchs Group Lilienthalstraße 200, 68307 Mannheim, Germany Internet: www.pepperl-fuchs.com KFD2-UT2-1, KFD2-UT2-1-1, KFD2-UT2-2, KFD2-UT2-2-1 Up to SIL 2 KFD2-UT2-Ex1, KFD2-UT2-Ex1-1,KFD2-UT2-Ex2, KFD2-UT2-Ex2-1... -
Page 9: Planning
Functional Safety KFD2-UT2-(Ex)*(-1) 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-UT2-(Ex)*(-1) Planning Assumptions The following assumptions have been made during the FMEDA: • Failure rate based on the Siemens standard SN 29500. • Failures during configuration are not considered. • The collective error message output is not considered in the FMEDA and in the calculations. -
Page 11: Safety Function And Safe State
Functional Safety KFD2-UT2-(Ex)*(-1) Planning Safety Function and Safe State Safety Function The safety function of the device is fulfilled, as long as the output repeats the linearized input signal with a tolerance of 2 %. Safe State The safe state is present when the output signal is < 4 mA or > 20 mA. Reaction Time •... -
Page 12: Characteristic Safety Values
Functional Safety KFD2-UT2-(Ex)*(-1) Planning Characteristic Safety Values The following tables contains no SFF data, since this value has to be calculated with consideration of the connected field device. KFD2-UT2-(Ex)* Parameters Characteristic values Assessment type FMEDA report with proven-in-use assessment Device type Mode of operation Low demand mode Safety function... -
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-UT2-(Ex)*(-1) 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. Protect the device against manipulation. Mount the device in a lockable switch cabinet, for example. -
Page 15: Operation
Functional Safety KFD2-UT2-(Ex)*(-1) 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: Proof Test Procedure For Kfd2-Ut2-(Ex)*(-1)
Functional Safety KFD2-UT2-(Ex)*(-1) Operation Proof Test Procedure for KFD2-UT2-(Ex)*(-1) Perform the proof test with the same configuration that you use in the application. Substitute the sensor with a sensor simulator or a calibrator. Check the safety function at the input, which must be configured to set the output values to 4 mA, 12 mA, 20 mA. - Page 17 Functional Safety KFD2-UT2-(Ex)*(-1) Operation 5.2.1 Thermocouple Input (TC) Multimeter KFD2-UT2-Ex2 (mA) Sim. Multimeter 110Ω (mA) Sim. 110Ω Fault Supply + 24 V DC Power I supply Supply Zone 0, 1, 2 Zone 2 supply Supply - Div. 1, 2 Div. 2 Figure 5.1 Proof test set-up for KFD2-UT2-(Ex)*(-1) with thermocouple input (TC) Usage in Zone 0, 1, 2/Div.
- Page 18 Functional Safety KFD2-UT2-(Ex)*(-1) Operation 8. Remove the fixed resistor. Check if a lead breakage of the CJCs are detected. The red LED is flashing. The output behavior in the event of a fault depends on the device configuration. 9. Apply short circuit between terminals 2 and 3 (channel I) and between terminals 5 and 6 (channel II).
- Page 19 Functional Safety KFD2-UT2-(Ex)*(-1) Operation 5.2.2 Resistance Thermometer Input (RTD) Multimeter KFD2-UT2-Ex2 (mA) Multimeter (mA) Fault Supply + 24 V DC Power Supply Zone 0, 1, 2 I supply Zone 2 supply Supply - Div. 1, 2 Div. 2 Figure 5.2 Proof test set-up for KFD2-UT2-(Ex)*(-1) with resistance thermometer input (RTD) Usage in Zone 0, 1, 2/Div.
- Page 20 Functional Safety KFD2-UT2-(Ex)*(-1) Operation 6. Remove the RTD simulator. Check if a lead breakage is detected. The red LED is flashing. The output behavior in the event of a fault depends on the device configuration. 7. Set the device back to the original settings after the test.
- Page 21 Functional Safety KFD2-UT2-(Ex)*(-1) Operation 5.2.3 Voltage Input (mV) Multimeter KFD2-UT2-Ex2 (mA) Multimeter (mA) Fault Supply + 24 V DC Power Supply Zone 0, 1, 2 I supply Zone 2 supply Supply - Div. 1, 2 Div. 2 Figure 5.3 Proof test set-up for KFD2-UT2-(Ex)*(-1) with voltage input (mV) Usage in Zone 0, 1, 2/Div.
- Page 22 Functional Safety KFD2-UT2-(Ex)*(-1) Operation 5.2.4 Potentiometer Input Multimeter KFD2-UT2-Ex2 (mA) 50 % 100 % Multimeter (mA) Fault Supply + 24 V DC Power Supply Zone 0, 1, 2 I supply Zone 2 supply Supply - Div. 1, 2 Div. 2 Figure 5.4 Proof test set-up for KFD2-UT2-(Ex)*(-1) with potentiometer input Usage in Zone 0, 1, 2/Div.
- Page 23 Functional Safety KFD2-UT2-(Ex)*(-1) Operation Proof Test for Output as Current Sink The criteria for a successful repeat test, which are specified for the output as a current source, are also valid for the output as current sink. In addition to the test setup described above, a voltage source must be connected to the output to simulate the original application.
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Page 24: Maintenance And Repair
Functional Safety KFD2-UT2-(Ex)*(-1) 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 25: List Of Abbreviations
Functional Safety KFD2-UT2-(Ex)*(-1) 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 26 Functional Safety KFD2-UT2-(Ex)*(-1) Notes...
- Page 27 Functional Safety KFD2-UT2-(Ex)*(-1) Notes...
- Page 28 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-6554 Copyright PEPPERL+FUCHS • Printed in Germany 10/2019...
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