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ISO

9001

2

Functional Safety

Inductive Dual Sensor

NCN3-F31K2(M)-N*-B*3-S

FACTORY AUTOMATION

MANUAL

Summary of Contents for NCN3-F31K2 Series

Page 1: ...ISO9001 2 Functional Safety Inductive Dual Sensor NCN3 F31K2 M N B 3 S FACTORY AUTOMATION MANUAL ...

Page 2: ...very 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 Functional Safety NCN3 F31K2 M N B 3 S ...

Page 3: ...aces 7 2 3 Marking 8 2 4 Standards and Directives for Functional Safe 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 Useful Lifetime 13 4 Mounting and Installation 14 4 1 Mounting 14 4 2 Installation 14 4 3 Configuration 14 5 Operation 15 5 1 Proof Test 15 6 Maintenance and Repair 16 7 List of Abbreviations 17 ...

Page 4: ...aintenance and repair Troubleshooting 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 applicable EU type examination certificate EU declaration of conformity Attestation of conformity Certificates Control drawings FMEDA report Assessment report Additional ...

Page 5: ...d 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 e...

Page 6: ...s are 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 symbol indicates an imminent danger Non observance will result in personal injury or death Warning This symbol indicates a possible fault or danger Non observance may cause personal injury or serious...

Page 7: ...n e g be a switch amplifier or an I O card in a PLC NCN3 F31K2 M N4 B 3 S The sensor has two separate sensor circuits with NC function normally closed The device is in high impedance state when a measuring plate is located within the sensing range of the respective sensor circuit The sensor has a rated operating distance sn of 3 mm NCN3 F31K2 N5 B 3 S The sensor has two sensor circuits One sensor ...

Page 8: ...l Fuchs Group Lilienthalstraße 200 68307 Mannheim Germany Internet www pepperl fuchs com NCN3 F31K2 N4 B13 S NCN3 F31K2 N4 B33 S NCN3 F31K2M N4 B13 S NCN3 F31K2M N4 B23 S NCN3 F31K2 N5 B13 S NCN3 F31K2 N5 B33 S Up to SIL 2 Functional safety IEC EN 61508 part 1 2 edition 2010 Functional safety of electrical electronic programmable electronic safety related systems manufacturer ...

Page 9: ... safety related operation then usually the 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 time of the safety system the SFF value Safe Failure Fraction the HFT architecture Hardware Fault Tolerance 3 1 3 Safe Failure Fraction The safe failure fractio...

Page 10: ...erature of 60 ºC the failure rates must be multiplied by a factor of 2 5 based on experience A similar factor must be used if frequent temperature fluctuations are expected SIL 2 Application Only use the device in SIL 2 applications in combination with a control unit according to EN 60947 5 6 NAMUR The device claims less than 25 of the total failure budget for a SIL 2 safety loop For a SIL 2 appli...

Page 11: ...ference object is inside of the operating distance of the respective sensor s Sao The assured operating distance Sao is 2 1 mm This assured operating distance is valid when using a reference object with a size of 12 mm x 12 mm x 0 4 mm made of stainless steel 1 4305 To ensure the safety of the safety loop according to SIL 2 only use control units according to EN 60947 5 6 NAMUR Reaction Time The r...

Page 12: ... HFT 0 Safety function High impedance state depending on the position of the measuring plate SIL 2 in combination with a control unit according to EN 60947 5 6 NAMUR SC 3 s 1 1 No effect failures are not influencing the safety function and are therefore not included in SFF and in the failure rates of the safety function 107 FIT du 66 FIT total safety function 173 FIT SFF 1 62 PFH 6 55 x 10 8 1 h P...

Page 13: ... is obvious that failure calculation is only valid for components that have this constant domain and that the validity of the calculation is limited to the useful lifetime of each component It is 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 The standard EN ISO 13849 ...

Page 14: ...alue does not differ by more than 10 from the rated operating distance 2 Fasten the measuring plate so that the measuring plate does not come loose or get lost 4 2 Installation Connecting the Sensor 1 Connect the device in safety applications up to SIL 2 to a control unit according to EN 60947 5 6 NAMUR Observe the limitations see chapter 1 2 2 Observe that the insulation resistance must be greate...

Page 15: ...ce or internal components of the device are damaged this can lead to unpredictable effects Check that the device is working correctly If the device is not working correctly or not working replace the device For this proof test no proof test coverage PTC can be claimed as only a full functional test with the defined reference object over the temperature range can reveal an unacceptable dislocation ...

Page 16: ...does 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 defective device must only be repaired by the manufacturer 4 If there is a defect always replace the device with an original device Danger Danger to life from missing safety function Changes to t...

Page 17: ... safety function Probability of failure of components that are in the safety loop HFT Hardware Fault Tolerance MTBF Mean Time Between Failures MTTFD Mean Time To dangerous Failure MTTR Mean Time To Restoration OSSD Output Signal Switching Device PDDB Proximity Device with Defined Behaviour under fault conditions PFDavg Average Probability of dangerous Failure on Demand PFH Average frequency of dan...

Page 18: ...chs Group 68307 Mannheim Germany Tel 49 621 776 0 E mail info de pepperl fuchs com USA Headquarters Pepperl Fuchs Inc Twinsburg Ohio 44087 USA Tel 1 330 4253555 E mail sales us pepperl fuchs com Asia Pacific Headquarters Pepperl Fuchs Pte Ltd Company Registration No 199003130E Singapore 139942 Tel 65 67799091 E mail sales sg pepperl fuchs com DOCT 6036B 11 2019 ...

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