Related Manuals for Pepperl+Fuchs K-LB Series
Summary of Contents for Pepperl+Fuchs K-LB Series
- Page 1 Functional Safety Surge Protection Barriers K-LB-*.*, F*-LB-I, P-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 K-LB-*.*, F*-LB-I, P-LB-*.*.* Contents Introduction ............5 Content of this Document . - Page 4 Functional Safety K-LB-*.*, F*-LB-I, P-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 K-LB-*.*, F*-LB-I, P-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 K-LB-*.*, F*-LB-I, P-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
Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Product Description Product Description Function General The surge protection barriers are used as modules positioned upstream in the circuit from the corresponding electrical equipment. The surge protection barriers make it possible to protect against overvoltages originating from various causes (lightning strikes, switching processes, etc.). -
Page 9: Interfaces
• Safety relevant interfaces: input and output Note For corresponding connections see datasheet. Marking Pepperl+Fuchs Group Lilienthalstraße 200, 68307 Mannheim, Germany Internet: www.pepperl-fuchs.com K-LB-*.**, F*-LB-I, P-LB-*.*.* Up to SIL 3 The stars replace a combination of characters, depending on the product. -
Page 10: Planning
Functional Safety K-LB-*.*, F*-LB-I, P-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 K-LB-*.*, F*-LB-I, P-LB-*.*.* Planning Assumptions The following assumptions have been made during the FMEDA: • The stress levels are average for an industrial environment and the environment is similar to IEC/EN 60654-1 Class C (sheltered location) with temperature limits in the range of the manufacturer's specifications and an average temperature of 40 ºC over a long period. -
Page 12: Safety Function And Safe State
Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Planning Safety Function and Safe State The surge protection barrier has to be considered in conjunction with the connected field device. The safety function of the surge protection barrier is defined by the signals and settings of the connected device (e. -
Page 13: Characteristic Safety Values
Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Planning Characteristic Safety Values The following tables contain no SFF characteristics, since this characteristics has to be calculated with consideration of the connected field device. DIN Mounting Rail Modules K-LB-1.30, K-LB-2.30, K-LB-1.6, K-LB-2.6 (1oo1 structure) Parameters Characteristics Assessment type... - Page 14 Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Planning K-LB-1.30G, K-LB-2.30G, K-LB-1.6G, K-LB-2.6G (1oo1 structure) Parameters Characteristics Assessment type FMEDA report and documentation Device type Mode of operation Low demand mode or high demand mode Safety function Pass through the signal 2 or 3 Signal type Safe state <...
- Page 15 Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Planning Field Mount Modules FN-LB-I, FS-LB-I, FP-LB-I (1oo1 structure) Parameters Characteristics Assessment type FMEDA report and documentation Device type Mode of operation Low demand mode or high demand mode Safety function Pass through the signal 2 or 3 Signal type Safe state...
- Page 16 Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Planning Plug-In Modules P-LB-1.D.*, P-LB-1.F.* (1oo1 structure) Parameters Characteristics Assessment FMEDA report type and documenta- tion Device type Mode of Low demand mode or high demand mode operation Safety Pass through the signal function 2 or 3 Signal type 4-wire 3-wire...
- Page 17 Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Planning P-LB-1.A.*, P-LB-2.A.* (1oo1 structure) Parameters Characteristics Assessment type FMEDA report and documentation Device type Mode of operation Low demand mode or high demand mode Safety function Pass through the signal 2 or 3 Signal type Safe state <...
- Page 18 Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Planning P-LB-1.B.*, P-LB-2.B.*, P-LB-1.C.*, P-LB-2.C.*, P-LB-2.D.*, P-LB-1.E.* (1oo1 structure) Parameters Characteristics Assessment type FMEDA report and documentation Device type Mode of operation Low demand mode or high demand mode Safety function Pass through the signal 2 or 3 Signal type Safe state...
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Page 19: 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 20: Mounting And Installation
Functional Safety K-LB-*.*, F*-LB-I, P-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 21: Operation
Functional Safety K-LB-*.*, F*-LB-I, P-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 22 Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Operation Proof Test Procedure Put out of service the entire safety loop. Protect the application by means of other measures. Prepare a test set-up, see figures below. Test all channels of the device. Verify the current and resistance values as given in table below. Only if all tests are successfully done, the proof test is successful.
- Page 23 Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Operation Current and Voltage Measurement Device Step no. Rated voltage Leakage current Comment K-LB-1.30 30 V between Pins 7, 8 < 50 µA Test passed if leakage K-LB-1.30G current is below 200 µA. K-LB-2.30 30 V between Pins 7, 8 <...
- Page 24 Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Operation Field Mount Modules Multimeter ( U ) ( I ) GND gn/ye Zone 1, 2 Div. 1, 2 Figure 5.3 Proof test set-up for F*-LB-I Device Step no. Rated voltage Leakage current Comment F*-LB-I 45 V between red (rd) <...
- Page 25 Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Operation Current and Voltage Measurement Device Step no. Rated voltage Leakage current Comment P-LB-1.A.13 30 V between Pins 1, 3 < 50 µA Test passed if leakage current is below 200 µA. P-LB-2.A.1346 30 V between Pins 1, 3 <...
- Page 26 Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Operation Resistance Measurement Device Step no. Rated voltage Comment P-LB-1.A.13 Resistance between Pins 1, (1) Test passed if resistance Resistance between Pins 3, (3) is below 2 . P-LB-2.A.1346 Resistance between Pins 1, (1) Test passed if resistance Resistance between Pins 3, (3) is below 2 .
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Page 27: Maintenance And Repair
Report all failures in the safety function that are due to functional limitations or a loss of device function – especially in the case of possible dangerous failures. In these cases, contact your local sales partner or the Pepperl+Fuchs technical sales support (service line). -
Page 28: Application Examples
Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Application Examples Application Examples All characteristics used in the following chapter were actual when this safety manual was released but may vary. The main purpose of this section is to show how to include a surge protected device into a safety loop. Integration of a Surge Protection Barrier into a Safety Loop The general considerations given above lead to the conclusion that it is mandatory before starting any safety loop calculation to have a clear understanding of:... - Page 29 Example 1 – Digital Input - NAMUR NE 22 Signals When using a switch amplifier from Pepperl+Fuchs it is possible to implement safety loops up to SIL 2 with a standard NAMUR NE 22 digital input signal. A sample configuration of a surge protected device would be KCD2-SR-Ex1.LB and K-LB-*.**.
- Page 30 Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Application Examples The IEC/EN 61508 characteristics of the KCD2-SR-Ex1.LB are: Total failure rate 254 FIT for T = 1 year 2.05 x 10 81.5 % Table 7.3 Characteristics of isolator KCD2-SR-Ex1.LB For further calculation of the KCD2-SR-Ex1.LB has to be calculated by using the PFD formula given in IEC/EN 61508:...
- Page 31 Bus powered Solenoid Drivers If a bus powered Solenoid Driver from Pepperl+Fuchs is considered it is possible to use virtually the same calculation method as used for NAMUR NE 22 inputs described above. The basic requirements are: 1.
- Page 32 Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Application Examples Example 3 – Analog Inputs – 4 mA to 20 mA Signals The basic requirements are: 1. Signal type of the safety loop = analog 2. Signal direction of the safety loop as seen from the perspective of the safety DCS = input 3.
- Page 33 Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Application Examples Example 4 – Surge Protection Barriers and Field Devices The same method can be applied when the DIN mounting rail variant K-LB-*.** or the field mount module F*-LB-I has to be combined with any other field device. F*-LB-I Figure 7.3 Combination of F*-LB-I and a transmitter...
- Page 34 Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* Application Examples Combined with the characteristics for the surge protection barrier F*-LB-I the result is: Total failure rate 536 FIT + 7 FIT = 543 FIT (rounded) MTBF 210 years Safe failure rate 143 FIT Dangerous undetected failure rate 57 FIT Dangerous detected failure rate...
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Page 35: List Of Abbreviations
Functional Safety K-LB-*.*, F*-LB-I, P-LB-*.*.* List of Abbreviations List of Abbreviations Emergency Shutdown 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 36 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-2079A...