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Functional Safety KFD2-UT2-(Ex)*(-1)

Introduction

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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.

Intended Use

The device is only approved for appropriate and intended use. Ignoring these instructions 

will void any warranty and absolve the manufacturer from any liability.
The device is developed, manufactured and tested according to the relevant safety standards.
Use the device only
• for the application described
• with specified environmental conditions
• with devices that are suitable for this safety application

Improper Use

Protection of the personnel and the plant is not ensured if the device is not used according 

to its intended use.

Содержание KFD2-UT2 Series

Страница 1: ...ISO9001 2 Functional Safety Temperature Converter KFD2 UT2 Ex 1 PROCESS AUTOMATION MANUAL...

Страница 2: ...elivery 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 rec...

Страница 3: ...Marking 8 2 4 Standards and Directives for Functional Safety 8 3 Planning 9 3 1 System Structure 9 3 2 Assumptions 10 3 3 Safety Function and Safe State 11 3 4 Characteristic Safety Values 12 3 5 Use...

Страница 4: ...ing Dismounting Disposal The documentation consists of the following parts Present document Instruction manual Manual Datasheet Additionally the following parts may belong to the documentation if appl...

Страница 5: ...d understood the instruction manual and the further documentation Intended Use The device is only approved for appropriate and intended use Ignoring these instructions will void any warranty and absol...

Страница 6: ...displayed in descending order as follows Informative Symbols Action This symbol indicates a paragraph with instructions You are prompted to perform an action or a sequence of actions Danger This symb...

Страница 7: ...ing rail according to EN 60715 KFD2 UT2 1 The device converts the signal of a resistance thermometer thermocouple or potentiometer to a proportional output voltage KFD2 UT2 Ex 1 This isolated barrier...

Страница 8: ...em specific standards and directives Note For corresponding connections see datasheet Pepperl Fuchs Group Lilienthalstra e 200 68307 Mannheim Germany Internet www pepperl fuchs com KFD2 UT2 1 KFD2 UT2...

Страница 9: ...demand rate for this safety loop is assumed to be higher than once per year The relevant safety parameters to be verified are the PFH value Probability of dangerous Failure per Hour Fault reaction ti...

Страница 10: ...rial field environment similar to IEC EN 60654 1 Class C with an average temperature over a long period of time of 40 C may be assumed For a higher average temperature of 60 C the failure rates must b...

Страница 11: ...ction 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 T...

Страница 12: ...g for Tproof 5 years 6 2 08 x 10 3 PTC 90 Reaction time 7 for temperature input 1 5 s for potentiometer input 3 s Table 3 1 1 For the proven in use demonstration sales figures customer returns and que...

Страница 13: ...assumed that early failures are detected to a huge percentage during the installation and therefore the assumption of a constant failure rate during the useful lifetime is valid However according to...

Страница 14: ...DP USB adapter to the device 3 Configure the device for the required safety function via the PACTware operating software see chapter 4 1 1 4 Protect the device configuration by a password against chan...

Страница 15: ...cording to IEC EN 61508 2 a recurring proof test shall be undertaken to reveal potential dangerous failures that are not detected otherwise Check the function of the subsystem at periodic intervals de...

Страница 16: ...at the input which must be configured to set the output values to 4 mA 12 mA 20 mA Equipment required Digital multimeter with an accuracy of 0 1 Use for the proof test of the intrinsic safety side of...

Страница 17: ...the output current The proof test is passed if the output values are within 2 of the output span 1 This means for the 4 mA application 3 7 mA to 4 3 mA for the 12 mA application 11 7 mA to 12 3 mA fo...

Страница 18: ...n terminals 5 and 6 channel II Check if a short circuit of the cold junction compensation is detected The red LED is flashing The output behavior in the event of a fault depends on the device configur...

Страница 19: ...tput span 1 This means for the 4 mA application 3 7 mA to 4 3 mA for the 12 mA application 11 7 mA to 12 3 mA for the 20 mA application 19 7 mA to 20 3 mA 5 Apply short circuit between terminals 2 and...

Страница 20: ...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 bac...

Страница 21: ...3 7 mA to 4 3 mA for the 12 mA application 11 7 mA to 12 3 mA for the 20 mA application 19 7 mA to 20 3 mA 5 Remove the voltage source Check if a lead breakage is detected The red LED is flashing The...

Страница 22: ...to the terminals 7 and 8 channel I and 10 and 11 channel II 4 Set the simulation resistor to 0 50 and 100 of the potentiometer value 5 Measure the output current The proof test is passed if the output...

Страница 23: ...istors for 0 50 and 100 of the potentiometer value to the terminals 2 and 3 channel I and 5 and 6 channel II see figure 2 Connect the one shot input to the terminals 1 channel I and 4 channel II to th...

Страница 24: ...not work Take appropriate measures to protect personnel and equipment while the safety function is not available Secure the application against accidental restart 3 Do not repair a defective device A...

Страница 25: ...part Probability of failure of components that are not in the safety loop total safety function Probability of failure of components that are in the safety loop HFT Hardware Fault Tolerance MTBF Mean...

Страница 26: ...2019 10 26 Functional Safety KFD2 UT2 Ex 1 Notes...

Страница 27: ...Functional Safety KFD2 UT2 Ex 1 Notes 2019 10 27...

Страница 28: ...rl fuchs com 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 f...

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