Rotating Paddle Switch SITRANS LPS200. Functional Safety Manual 05/2016 SITRANS

Transcription

1 Rtating Paddle Switch Functinal Safety Manual 05/2016 SITRANS

2 Table f cntent 1. SCOPE DEVICE IDENTIFICATION APPLICABLE DOCUMENTS RESTRICTIONS DEVICE DESCRIPTION APPLICATION RANGE OPERATING CONDITIONS SAFETY FUNCTION Safe tate Failure mde SAFETY-RELATED CHARACTERISTIC DATA INSTALLATION NOTES ELECTRICAL CONNECTION SETTINGS Cnfiguratin Delay FUNCTION TEST APPLICATION NOTES BEHAVIOR IN CASE OF FAILURE FAULT REACTION TIME PERIODIC FUNCTIONAL TESTING Scpe The at hand refer t device with the pecial requirement fr afety technique in accrdance with IEC :2010 (ptin C20 Functinal afety SIL 2 ) Device identificatin The identificatin f a device i dne by it nameplate. On the nameplate a device name () i nted. Fr detailed identificatin the field Mdelcde and Optin are relevant. All device with the ptin Functinal afety SIL 2 are marked with C20 at the field Optin f the nameplate. SITRANS LPS 200 SN ********** Mdelcde 7ML5725-*****-**** L 100mm Supply 24V DC T(amb) -20 C..+50 C 2.5W T(prce) -25 C..+80 C Output SPDT max.250vac, 5A P(prce) bar Enclure max.30v DC, 4A Optin C20 IP66, NEMA Type 4X See intructin manual fr prper peratin. KCC-REM-S49 SITRANSLPS Siemen Canada Ltd. - Siemen Milltrnic Prce Intrument Made in Germany Figure: exemplary nameplate fr device identificatin Page EN-2

3 1.2. Applicable dcument The fllwing dcument have t be cnidered additinal t thi : Operating Intructin SIL-Declaratin f Cnfrmity FMEDA reprt If neceary Ex-dcumentatin 1.3. Retrictin The i nly valid fr device lited in the SIL-Declaratin f Cnfrmity. Mdificatin t device are nly allwed t the manufacturer under cmpliance f the afety life cycle. 2. Device decriptin 2.1. Applicatin range The device i deigned t implement a afety functin in a afety-related ytem. The device can be ued fr verall afety functin in lw demand mde a well a fr verall afety functin in high demand mde / cntinuu mde Operating cnditin At tranprt, trage, intallatin, peratin and maintenance f the device the requirement accrding Operating Intructin have t be btained. Additinal t perating cnditin the EMC-limit fr general indutrial applicatin accrding EN (Electrical equipment fr meaurement, cntrl and labratry ue - EMC requirement Part 3-1: Immunity requirement fr afety-related ytem and fr equipment intended t perfrm afety-related functin (functinal afety) - General indutrial applicatin) mut nt be exceeded Safety functin The afety functin f the device i the detectin f a limit level f bulk material in cntainer. Thereby the device can be cnfigured a full detectr (verfilling prtectin) r empty detectr (running dry prtectin). The utput f the afety functin depend n the cnfiguratin f the device a full detectr r empty detectr: Full detectr: detectin f a filling level exceeding a defined limit value (cvered rtating paddle) Empty detectr: detectin f a filling level belw a defined limit value (uncvered rtating paddle) Page EN-3

4 Safe tate The afe tate i given, when the ignal utput preent an pen electric circuit. Under nrmal cnditin thi depend n the tate f the rtating paddle: Safe tate (pen circuit at ignal utput) Unafe tate (cled circuit at ignal utput) Full detectr cvered rtating paddle uncvered rtating paddle Empty detectr uncvered rtating paddle cvered rtating paddle In cae f failure the device i deigned t witch permanent t afe tate Failure mde Aging f cmpnent can lead t randm hardware defect f the device. Thi can reult in a failure f the device. In the fllwing table the pible failure are lited: Failure mde Signal utput Crrect level indicatin Safe, detected failure pen ye Safe, undetected failure pen ye Unafe, detected failure pen n Unafe, undetected failure cled n 2.4. Safety-related characteritic data Aumptin fr determining afety-related characteritic data: Failure rate accrding t SN Single channel architecture (1001D) Mean time t repair (MTTR) = 24h SIL: 2 HFT: 0 Type: B MTBF: 81 year Fault reactin time: <120 (ee ectin 4.2) Full detectr Empty detectr λsd 0 FIT 323 FIT λsu 268 FIT 269 FIT λdd 519 FIT 196 FIT λdu 72 FIT 71 FIT SFF 91.6% 91.8% PFH x 10-6 /h x 10-6 /h PFDavg 1 year 3.2 x x 10-4 depending n time 2 year 6.3 x x 10-4 interval fr peridic 5 year 1.6 x x 10-3 functin tet 10 year 3.2 x x 10-3 Page EN-4

5 3. Intallatin nte 3.1. Electrical cnnectin ee Operating Intructin The intructin fr electrical cnnectin mentined in the Technical infrmatin / Intructin manual have t be btained. The ignal utput f the afety functin ha t be cnnected like in cnnectin example maximum afety (ee Operating Intructin ). Terminal blck pair fr the ignal utput f the afety functin 4-7 Schematic ignal utput Additinal terminal blck nt t be ued fr afety functin 5, 6, 8, 9, 10 NOTE: The ignal utput f the afety functin (terminal blck pair 4-7) i realized internally by a erie cnnectin f tw redundant witching relay (terminal blck pair 4-5 and 5-7). WARNING: The additinal terminal blck (5, 6, 8, 9, 10) are nt part f the device afety functin. They can be ued accrding t the intructin manual. The afety-related characteritic data are nt valid fr the additinal terminal blck Setting Cnfiguratin ee Operating Intructin WARNING: When cnfigured wrng, the afety functin cannt be aured. A miing f the jumper FSH/FSL i diagned and turn the device int afe tate Delay ee Operating Intructin WARNING: Fr the afety functin the maximum delay time have t be cnidered Functin tet T avid ytematic failure during intalling a well a fr peridic functinal teting a functin tet ha t be carried ut. While the functin tet i perfrmed, the verall afety functin ha t be enured therwie than by the device. Prcedure f functin tet: Checking f the device cnfiguratin: De the cnfiguratin (FSH/FSL) crrepnd t the verall afety functin f the device? Page EN-5

6 NOTES: Checking f the mechanic: De the rtating paddle turn when uncvered? De the rtatin peed f the rtating paddle crrepnd t the device pecificatin? De the witching lug tene when changing frm uncvered t cvered rtating paddle? Checking f the ignal utput: De the ignal utput in uncvered tate crrepnd t the device cnfiguratin (FSH/FSL)? De the ignal utput in cvered tate crrepnd t the device cnfiguratin (FSH/FSL)? De the delay at the ignal utput (uncvered t cvered rtating paddle / cvered t uncvered rtating paddle) crrepnd the requirement f the verall afety functin? The cvered / uncvered tate ha t be induced by ramping-up the bulk material t the repective limit level r by a uitable imulatin f thi. The checking f the ignal utput i dne baed n a cntinuity tet at terminal blck pair 4-5 a well a at terminal blck pair 5-7 and ha t be identical fr bth at terminal blck pair. WARNING: In cae f failed functin tet, the verall afety functin ha t be enured therwie than by the device until replacing. 4. Applicatin nte 4.1. Behavir in cae f failure In cae f failure the device turn t afe tate. Furthermre the failure i ignalized by light up f the red LED. I the failure diagned, the afe tate i hld even if the diagned failure diappear. T reet the failure the upply vltage ha t be turned ff Fault reactin time The maximum fault reactin time frm appearance until witching t the afe tate fr failure able t diagne i 120. The fault reactin time i independent frm the cnfigured delay f the ignal utput in nrmal cnditin (ee Operating Intructin ) Peridic functinal teting When the device i ued t realize a verall afety functin in lw demand mde, a peridic functin tet ha t be perfrmed. The prcedure f the peridic functin tet i a decribed in ectin 3.3. The maximum time interval fr the peridic functin tet ha t be calculated depending n the tlerable failure prbability fr the device and it PFDavg value (ee ectin 2.4) accrding t IEC Page EN-6

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8 Fr mre infrmatin Siemen Canada Limited 1954 Technlgy Drive P.O. Bx 4225 Peterbrugh, ON Canada K9J 7B1 c Subject t change withut prir ntice Siemen AG