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Siemens 6SN1123-1AA00-0DA2 Configuration Manual
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905.019.4 Application examples9-375© Siemens AG 2012 All Rights ReservedSIMODRIVE 611 Configuration Manual (PJU) – 02/2012 EditionTable 9-21 Determining MTTFdParameter Value CommentChannel 1Safety relay –K1B10d value 20.000.000 Manufacturer’s datanop 525612 peryear525600 per year by the protective door + 12 peryear by EMERGENCY STOPMTTFd (–K1) 951 JahreMTTFd = B10d0,1 x nopContactor relay –K6B10d value 1.333.333 Manufacturer’s datanop 525612 peryear525600 per year by the protective door + 12 peryear by EMERGENCY STOPMTTFd (contactorrelay)25,3 yearsMTTFd = B10d0,1 x nopZwischenergebnis Kanal 1MTTFd (channel 1) 21,8 yearsMTTFd(channel 1)1MTTFd(–K1[–A11...–A16], –K6)1= ∑Channel 2Line contactor –K2 and contactor relay –K5B10d value 1.333.333 Manufacturer’s datanop 12 peryear12 actuations per year as a result ofEMERGENCY STOPMTTFd (–K2) 1.111.111 yearsMTTFd = B10d0,1 x nopContactor relays –K3, –K4B10d value 1.333.333 Manufacturer’s datanop 525612 peryear525600 per year by the protective door + 12 peryear by EMERGENCY STOPMTTFd (contactorrelay)25,3 yearsMTTFd = B10d0,1 x nopIntermediate result, channel 2MTTFd (channel 2) 12,6 yearsMTTFd(Kanal 1)1MTTFd(–K2, –K3, –K4, –K5)1= ∑Intermediate result, RESPOND (channel 1 and 2)MTTFd(RESPOND)17,6 years→ averageSymmetrization of both channels is not neces-saryMTTFd =123MTTFd1 (channel 1) + MTTFd (channel 2)– 1MTTFd (channel 1)1MTTFd (channel 2)+DeterminingMTTF d9 Cabinet Design and EMC02.12 |
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