Safety Integrated - Industry - Siemens

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Ex. No. E-Stop with monitored start, protective door monitoring 1.11 with automatic start and service mode, Category 2 acc. to EN 954-1 with a SIRIUS 3TK2845 safety relay Function Description of the functionality If people (in production technology) are close to machines, then they must be protected using the appropriate equipment. This Safety Functional example describes how an E-Stop command device and a guard in the form of a protective door are monitored. The E-Stop command device represents a widely established component that protects people, plants/systems and the environment against potential hazards. An additional solution for plants and machines to secure hazardous areas is mechanically isolating protective equipment (guards) or access hatches. In this case, the function is to monitor unauthorized entry into plant and system areas as well as to prevent potentially hazardous machine functions if the protective equipment - in this case protective door - is opened. Position switch with separated actuator Actuator Protective door opened Protective door closed In this Safety Functional Example, the E-Stop command device with a positively-opening contact is monitored by a SIRIUS 3TK2845 safety relay according to Category 2 in compliance with EN 954-1. If the E-Stop button is pressed, the safety-relay opens, via safety outputs, the downstream contactors K1 and K2 with positively driven contacts according to stop Category 0 in compliance with EN 60204-1. Before powering-up again and acknowledging the E-Stop device using the start button, a check is made as to whether the contact of the E-Stop command device is closed and both contactors have been de-energized (i.e. the contactors have dropped-out). The protective with a SIRIUS position switch with positivelyopening contact door is also monitored by the 3TK2845 safety relay according to Category 2 in compliance with EN 954-1. If this protective door is opened, the safety relay also opens the downstream contactors K1 and K2 via the positively driven safety-related outputs according to stop Category 0 in compliance with EN 60204-1. If the protective door is closed and after the position switch and downstream contactor have been checked, then the drive automatically starts. 24 Functional Example No. CD-FE-I-023-V10-EN G_FB_XX_056 If the "Service mode" key-operated switch is actuated, then contactor K2 drops-out and the protective door can be opened without contactor K1 dropping-out. After the "Service mode" has been completed, when the key-operated switch is reactuated, contactor K2 is automatically closed again. K1 and K2 switch two separate drives. Cascading input (1) EMERGENCY STOP (Y42) Protective door (Y42) Key-operated switch "service mode" (Y72/Y82) Start R S Safety logic 3TK2845-1BB40 Stop Category 0 Note Using this circuit example, Category 2 according to EN 954-1 can only be fulfilled if, when the actuator fails, an alarm is automatically output or the machine control initiates a safety condition. If this is not the case, a second shutdown path is required. Equipment, functional aspects and design guidelines for E-Stop command devices are provided in EN 418 (EN ISO 13850 in draft status). The position switches must be arranged so that they are not damaged when they are approached and passed. This is the reason that they may not be used as mechanical endstop. Advantages/customer benefits 1 Relay output instantaneous (13/14) Electronic output instantaneous contactor K1 (24) Relaisausgang unverzögert (33/34) Relay output instantaneous contactor K2 (44) ■ Pure hardware engineering without having to configure/program software ■ A low scope of simple wiring ■ Space-saving design using our compact safety relay ■ Can be simply expanded using expansion devices & & G_FB_XX_057
Required components Hardwarekomponenten Component Type MRPD / Ordering data Qty Manufacturer SIRIUS position switch Position switch with separate actuator 3SE2 243-0XX40 1 Siemens AG Actuator for position switch Radius actuator 3SX3 228 1 E-Stop Mushroom head pushbutton, 1 NC, 40 mm, with yellow upper section without protective collar 3SB3 801-0DG3 1 Start button and Empty enclosure of two command points 3SB3 802-0AA3 1 service mode 1NO contact for base-mounting 3SB3 420-OB 2 Pushbutton, black with flat actuator, 22 mm nominal diameter 3SB3 000-0AA11 1 Key-operated switch CES 3SB3000-4LD01 1 Safety relay 3TK2845 3TK2845-1BB40 1 Contactors K1 / K2 Contactor, AC-3, 3KW/400V, 1NC, 24V DC, 3-pole, Size S00, screw connection 3RT1015-1BB42 2 Note The functionality was tested using the specified hardware components. Products that are similar but deviate from the list above can be used (e.g. a different 3TK28 safety relay). However, in this case, please carefully note that it may be necessary to make modifications as to how the hardware components are connected-up (e.g. another connection assignment). Structure and wiring An overview of the hardware structure Wiring of the hardware components K1 Service mode M1 L +(24V DC) M A1 Y41 Y42 Y65 Y51 13 14 24 Y72 Y82 A2 33 34 44 Y34 Y64 32 K1 E-stop Y52 1 Y11 Y12 Y35Y21 Y22 Functional Example No. CD-FE-I-023-V10-EN 25 K2 Start K1 K2 K2 3TK2845-1BB40 M2 G_FB_XX_059 Ex. No. 1.11
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Commissioning the AS Interface Safe
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Protective door with door interlock
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Wiring of Hardware Components
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Settings of the CPU 315F-2DP The se
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L1 N PE PS 307 / CPU 315F L+ M IM 1
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Setup and Wiring In order to set up
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ACK PS 307 START CPU 315F Wiring of
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Setup and Wiring Regarding the use
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COND2), which can be changed by the
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Time sequence For a better understa
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IM 151 HF IM 151 HF PM-E PM-E 2DI H
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Operation: Automatic reintegration
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Background Knowledge on the Functio
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F-I/O-module data block What is an
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The user has read and write access
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Warning Automatic reintegration is
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This communication is realized via
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DP Slave (MASTERDRIVES) The descrip
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Program sequence General overview T
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■ This circuit principle is suita
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Porting PROFIsafe to the applicatio
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Download S7 program To download the
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nels takes approximately 2.4s. This
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Key performance data Load memory an
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The individual telegram components
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■ Then, in the Project Navigator
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Function test The function test can
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Siemens telegram 352, PZD 6/6 The s
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Principle structure of the FC100 Ne
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Functional Example No. SD-FE-I-002-
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Contact partners Contact partners f
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