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| | | Interface DIN-Rail Housing Catalogue What is new? What is important? | | |
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| | | Which devices can be used All devices with a SIL level are accompanied by direct advice on this topic in the respective for functional safety? data sheet. | | |
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| | | | | | | | | | | KFD2-SOT2-Ex2.IO | | | | | Output: electronic unit | | | | | | | | | |
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| | | Connection Input I EEx ia IIC Input II EEx ia IIC | | |
| | | Ci ® | | |
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| | | Switch S3 in position I | | |
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| | | 1+f 3-t 4+f 6-t 400 Q < R < 2 kQ 400 Q < R < 2 kQ | | |
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| | | |~ Switch S3 in position I | L^r—i^l L^r—i^l Switch S3 in position I without SC TioknT TiôknT 1-1 2+f 3-f 5+f 6-t | | |
| | | 01 □ o ■a ra ra X | | |
| | | • 2-channel ■ Control circuit EEx ia IIC • Device installation permissible in zone 2 • Reversible mode of operation • 1 passive transistor output, depolarised per channel • EMC acc. to NAMUR NE 21 • LB/SC monitoring • LB/SC collective error message via Power Rail • Up toSIL2acc.toIEC61508 2| v DC KFD2-SOT2-Ex2.IO Function The transformer isolated barrier transfers digital signals from the hazardous area. Detection per | | |
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| | | LB, SC 1+T 3- 1+ 2+ 3- | | 1 I ~1 Switch S3 in position II
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| | | ' | 4+T 6- 4+ 5+ 6- | | ' I-1 | |
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| | | Ell C 0 N | | |
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| | | (0 CD to | | |
| | | TD c c o ■Ji | | |
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| | | Cfl □ o •a n N n £ | | |
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| | | 2 13 0 E | | |
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| | | Vou iv/// f/hd the /ist/hg of all SIL graded devices from page 614 of this catalogue. | | |
| | | o n Note | | |
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| | | Special item - Disconnector amplifier with dynamic evaluation | | The isolated switch professional amplifiers equipped with dynamic evaluation, KFD2-SH-Ex1, KHA6-SH-Ex1 and KFD2-SH-Ex1 .T.OP can be used in conjunction with our safety-aligned manufacturer of proximity switches in the series *SN and *S1N, with a simple evaluation structure (e. g. 1oo1) to achieve SIL3. The system operates in accordance with the principle: safe condition = de-energised condition. In contrast to the other isolating switch amplifiers, on these devices, which are designed with dynamic safety in mind, there is no option to switch over the mode of operation. An intentional or unintentional changeover of the direction of operation, leading to the loss of the safety function, is thereby excluded. Through the use of different types of proximity sensors the direction of operation can be adapted to the prevailing mechanical features. The table clarifies this mode of operation: | | |
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| | | | | | | | | | | | | | | Sensor circuit | | | | | Input SN-Sensor | Input SIN-Sensor | Mech. Contact | Safety output I + II | | Output III Fault signal | Status display (error) LED red | | | | 1 sc | isc | \ | Logic 1 energised | ON | cut-off de-energised | OFF | | | | isc | rsc 1 | \ | Logic 0 de-energised | OFF | cut-off de-energised | OFF | | | | Lead breakage J < 0,1 mA Lead short circuit JK > 5,0 mA | Logic 0 de-energised | OFF | through switched energised | ON | | | | | | | | | | | | | | |
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| | | Subject to reasonable modifications due to technical advances. | | Copyright Pepperl+Fuchs, Printed in Germany | | |
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| | | Pepperl+Fuchs Group • Tel.: Germany +49 621 776-0 • USA +1 330 4253555 • Singapore +65 67799091 • Internet http://www.pepperl-fuchs.com | | |
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