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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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3UG3501 数据表(PDF) 102 Page - List of Unclassifed Manufacturers |
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3UG3501 数据表(HTML) 102 Page - List of Unclassifed Manufacturers |
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102 / 114 page  3TK28 Safety Relays With electronic enabling circuits 7/102 Siemens LV 1 T · 2006 ■Overview The SIRIUS safety pilot guides you quickly to the right device ✔ = available -- = not available 1) The outputs are only safe when an external contactor is used. ■Design The solid-state safety relays can be used in EMERGENCY-STOP devices to EN 418 and in safety circuits to EN 60204-1 (11.98), for example, for moving covers and protective doors. Depending on the device type and the external circuit, the maximum category that can be achieved is Category 4 of EN 954-1 or SIL 3 according to IEC 61508. Installation For snap-on mounting on 35 mm standard mounting rail according to EN 50022. Screw fixing is also possible for the devices by means of 2 additional 3RP19 03 push-in lugs. ■Function The electronics (based on the example of a 3TK28 41) 7 The internal circuit is configured with redundancy and diversity. The processors monitor each other dynamically. 7 The output drivers are also redundant and diverse. They are monitored by a cyclic self-test. 7 All sensor signals are dynamically tested. This enables faults to be detected on the sensors, wires (cross-circuit) etc. 7 The field-effect transistor (FET) is switched by both processors. The output driver must be activated simultaneously by one of the two processors. Only then is the voltage connected safely from power supply terminal A1 to output terminals 14 + 24. 7 All solid-state switches (FET + output driver) are dynamically monitored by the processors. 7 The required functionality (1-channel or 2-channel), monitored start or autostart, EMERGENCY-STOP, protective door and cascading is set by means of jumpers at the connection terminals. Type Connection Crossover protection Category acc. to EN 954-1 EMERGENCY- STOP Protective door Solid-state sensors Cascading input Safety mats 1-channel 2-channel B 1 2 3 4 24 V DC 3TK28 40 basic unit ✔ ✔ ✔ ✔ ✔ ✔ ✔ -- ✔ ✔ -- -- -- 3TK28 41 standard unit ✔ ✔ ✔ ✔✔ ✔✔✔ ✔ ✔ ✔ 1 ✔ 3TK28 42 standard unit tv ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ 1 ✔ 3TK28 45 multi-function unit ✔ ✔ ✔ ✔✔ ✔✔✔ ✔ ✔ ✔ 1 ✔ Type Enabling circuit, floating Enabling circuit, solid-state Signal- ing circuit Autostart Moni- tored start Switching capacity Rated operational voltage Rated control supply voltage Control inputs Stop category 0 Stop category 1 Stop category 0 Stop category 1 AC-15 at U=230 V DC-13 at U=24 V 24 V DC 230 V AC 600 V AC 24 V DC 115 V AC 230 V AC 24 V DC 3TK28 40 basic unit -- -- 21) -- -- ✔ ✔ -- 0.5 A ✔ -- -- ✔ -- -- -- 3TK28 41 standard unit -- -- 2 -- -- ✔✔ -- 1.5 A ✔ -- -- ✔ -- -- -- 3TK28 42 standard unit tv -- -- 1 1 -- ✔ ✔ -- 1.5 A ✔ -- -- ✔ -- -- -- 3TK28 45 multi-function unit 111 1 1 HL ✔✔ 2 A 1.5 A ✔✔ -- ✔ -- -- -- 2--2 -- 1 HL Y11 Y12 Y35 Y21 Y22 Y32 Y34 A1 A2 14 24 µC1 µC2 FET 1 Ausgangstreiber Y11 Y12 Y35 Y21 Y22 Y32 Y34 A1 A2 14 24 µC1 µC2 FET 1 Output driver |
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