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Siemens 3TK2845 Manual

Siemens 3TK2845 Manual

Safety relays, multifunction device
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Safety Relays
3TK2845 Multifunction Device
Manual
Order No.: 3TK2890-0A (German)
Order No.: 3TK2890-0B (English)
Order No.: 3TK2890-0C (French)
Version 07/2007 V1.3
GWA 4NEB 926 2087-22 DS 01
Last update: 09 August 2007
Important Information,
Table of Contents
Product Description
Functional Information
Technical Data
Mounting, Wiring,
Initial Start-up
Applications
1
2
3
4
5

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Summary of Contents for Siemens 3TK2845

  • Page 1 Important Information, Table of Contents Product Description Functional Information Safety Relays 3TK2845 Multifunction Device Technical Data Mounting, Wiring, Initial Start-up Applications Manual Order No.: 3TK2890-0A (German) Order No.: 3TK2890-0B (English) Order No.: 3TK2890-0C (French) Version 07/2007 V1.3 GWA 4NEB 926 2087-22 DS 01...
  • Page 2 Correct, reliable operation of the product requires proper transport, storage, positioning and assembly as well as careful operation and maintenance. Copyright Siemens AG 2007 All rights reserved Disclaimer of liability The reproduction, transmission or use of this document or its We have reviewed the contents of this publication to ensure contents is not permitted without express written authority.

  • Page 3: Table Of Contents

    Product Description......... . 1-1 3TK2845 Multifunction Device ........1-2 Function, Properties.
  • Page 4 Dimensional drawing ......... . 3-5 Fig. 4-1: 3TK2845 multifunction device for snap-on or screw mounting ..4-3 Fig. 4-2: Mounting and coding of the removable terminals .
  • Page 5 Table 3-2: Rated operating currents Ie ........3-3 3TK2845 Multifunction Device Manual...
  • Page 6 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...
  • Page 7 *) 8th digit of order No.: 1 = Screw connection, 2 = Spring-loaded terminal connection Standards and certifications The 3TK2845 safety relays can be used for EMERGENCY-STOP equipment complying with EN 418 and for safety circuits complying with EN 60 204-1 (11.98) e.g.
  • Page 8 Siemens will also not accept liability for recommendations that are given or implicated by the following product description. It is not possible to derive any new warranty or liability claims beyond Siemens' general terms of delivery from the following product description.

  • Page 9: Product Description

    Product Description Chapter Subject Page 3TK2845 Multifunction Device Function, Properties 3TK2845 Order Numbers 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 10: 3Tk2845 Multifunction Device

    3TK2845 Multifunction Device Fig. 1-1: Illustration of the device version with screw connection, instantaneous enabling circuit Fig. 1-2: Illustration of the device version with spring-loaded terminal connection, delayed enabling circuits 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 11: Function, Properties

    Product Description Function, Properties The 3TK2845 multifunction device is used to implement safety-related functions such as EMERGENCY-STOP monitoring, protective door monitoring and monitoring functions using non-contact protective equipment (BWS) such as light curtains and safety mats in machines with movable components.

  • Page 12: 3Tk2845 Order Numbers

    M agnetic force interlocked Tim e-delayed 0.5 to 30 s Spring-loaded tum bler term inal connection 3TK2845-2GB44 M agnetic force interlocked Tim e-delayed 5 to 300 s Spring-loaded tum bler term inal connection 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 13: Functional Information

    Functional Information Chapter Subject Page General Information 2.1.1 System Description Versions 2.2.1 3TK2845-.HB.. "Monitored and Automatic Start-Up" 2.2.2 3TK2845-.DB.. "Monitored Start-Up" 2-13 2.2.3 3TK2845-.EB.. "Enabling Button" 2-18 2.2.4 3TK2845-.FB.. "Spring Force Interlocked Tumbler" 2-22 2.2.5 3TK2845-.GB.. "Magnetic Force Interlocked Tumbler"...

  • Page 14: General Information

    Cascading input 1. Safe linking of safety devices In this application a higher-level safety device switches off the 3TK2845 via a safe output and the cascading input. Example: A -- higher-level -- EMERGENCY-STOP circuit must switch off the whole system.
  • Page 15 3TK2845 safety relays. The tripping of the 3TK2845 is initiated by a cross-circuit in the sensor cables. A safe evaluation according to DIN EN 1760-1 and DIN EN 1760-2 is possible with a safety mat resistance of <...

  • Page 16: Table 2-1: Use Of The Graphics

    Detection (sensors) Evaluation (safety relay) Switching-off (actuators) EMERGENCY-STOP Table 2-1: Use of the graphics Device type Safety logic Actuator interface Sensor interface Device parameter (outputs/enabling circuits) (inputs) Table 2-2: Device type 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...
  • Page 17 PLC output. Three enabling circuits and the connected consumers can then be switched via the machine controls. The safety function is higher-level). Key- 3TK2845-.HB.. : Bridging of the sensor connected to S2 (standard operated operation/maintenance) switch 3TK2845-.DB..
  • Page 18 Functional Information Actuator interface XX = Electronic enabling circuit (potential-bound) rel: Relay contact enable contact (floating) NO contact Time-delayed NO contact XX = Electronic signaling circuit (potential-bound) NO contact NC contact 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 19: System Description

    Description of symbols Symbol Description START button EMERGENCY-STOP Protective door Enabling button Light curtain, light grid, light barrier Safety mat Cross-circuit monitoring Feedback circuit Key-operated switch Table 2-3: Description of symbols 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 20: Versions

    2.2.1 3TK2845-.HB.. "Monitored and Automatic Start-Up" The 3TK2845-.HB.. has two sensor inputs (S1 with monitored start-up, S2 with automatic start-up), one cascading input (CAS/OS with automatic start-up) as well as one switching input (key-operated switch). On the output side there are two relay and two electronic enabling circuits as well as an electronic signaling output.
  • Page 21 Functional Information Safety logic Instantaneous Standard operation Main- tenance Table 2-4: Monitored and automatic start-up, instantaneous (simplified representation) 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...
  • Page 22 Functional Information Safety logic Time-delayed Standard operation Main- tenance Table 2-5: Monitored and automatic start-up, time-delayed (simplified representation) 3TK2845 Multifunction Device Manual 2-10 GWA 4NEB 926 2087-22 DS 01...
  • Page 23 Feedback circuit 1) Electronic signaling output Enabling circuit active: Signaling output OFF Enabling circuit inactive: Signaling output ON Key-operated switch Signaling output clocked operation: (approx. 1.2 Hz) 3TK2845 Multifunction Device Manual 2-11 GWA 4NEB 926 2087-22 DS 01...
  • Page 24 Feedback circuit 1) Electronic signaling output Enabling circuit active: Signaling output OFF Enabling circuit inactive: Signaling output ON Key-operated switch Signaling output clocked operation: (approx. 1.2 Hz) 3TK2845 Multifunction Device Manual 2-12 GWA 4NEB 926 2087-22 DS 01...

  • Page 25: 3Tk2845-.Db

    2.2.2 3TK2845-.DB.. "Monitored Start-Up" The 3TK2845-.DB.. has two sensor inputs (S1, S2 with monitored start-up), one cascading input (CAS/OS with automatic start-up) as well as one switching input (key-operated switch). On the output side there are two relay and two electronic enabling circuits as well as an electronic signaling output.

  • Page 26: Table 2-6: Monitored Start-Up, Instantaneous (Simplified Representation)

    Functional Information Safety logic Instantaneous Standard operation Main- tenance Table 2-6: Monitored start-up, instantaneous (simplified representation) 3TK2845 Multifunction Device Manual 2-14 GWA 4NEB 926 2087-22 DS 01...

  • Page 27: Table 2-7: Monitored Start-Up, Time-Delayed (Simplified Representation)

    Functional Information Safety logic Time-delayed Standard operation Main- tenance Table 2-7: Monitored start-up, time-delayed (simplified representation) 3TK2845 Multifunction Device Manual 2-15 GWA 4NEB 926 2087-22 DS 01...
  • Page 28 Key-operated switch switch Feedback circuit 1) Electronic signaling output Enabling circuit active: Signaling output OFF Enabling circuit inactive: Signaling output ON Key-operated switch Signaling output clocked operation: (approx. 1.2 Hz) 3TK2845 Multifunction Device Manual 2-16 GWA 4NEB 926 2087-22 DS 01...
  • Page 29 Key-operated switch switch Feedback circuit 1) Electronic signaling output Enabling circuit active: Signaling output OFF Enabling circuit inactive: Signaling output ON Key-operated switch Signaling output clocked operation: (approx. 1.2 Hz) 3TK2845 Multifunction Device Manual 2-17 GWA 4NEB 926 2087-22 DS 01...

  • Page 30: 3Tk2845-.Eb

    Functional Information 2.2.3 3TK2845-.EB.. "Enabling Button" The 3TK2845-.EB.. has two sensor inputs (S1 enabling button with automatic start-up, S2 protective door with monitored start-up/automatic start-up), one cascading input (CAS/OS with automatic start-up) as well as one switching input (key-operated switch). On the output side there are two relay and two electronic enabling circuits as well as an electronic signaling output.

  • Page 31: Table 2-9: Enabling Button, Time-Delayed (Simplified Representation)

    Functional Information Safety logic Time-delayed Standard operation Main- tenance Table 2-9: Enabling button, time-delayed (simplified representation) 3TK2845 Multifunction Device Manual 2-19 GWA 4NEB 926 2087-22 DS 01...
  • Page 32 Feedback circuit 1) Electronic signaling output Enabling circuit active: Signaling output OFF Enabling circuit inactive: Signaling output ON Key-operated switch Signaling output clocked operation: (approx. 1.2 Hz) 3TK2845 Multifunction Device Manual 2-20 GWA 4NEB 926 2087-22 DS 01...
  • Page 33 Feedback circuit 1) Electronic signaling output Enabling circuit active: Signaling output OFF Enabling circuit inactive: Signaling output ON Key-operated switch Signaling output clocked operation: (approx. 1.2 Hz) 3TK2845 Multifunction Device Manual 2-21 GWA 4NEB 926 2087-22 DS 01...

  • Page 34: 3Tk2845-.Fb

    Functional Information 2.2.4 3TK2845-.FB.. "Spring Force Interlocked Tumbler" The 3TK2845-.FB.. has two sensor inputs (S1 EMERGENCY-STOP with monitored start-up, S2 protective door with tumbler and monitored start-up), one cascading input (CAS/OS with automatic start-up) as well as one door enable input.
  • Page 35 Feedback circuit applications) 1) Electronic signaling output Enabling circuit active: Signaling output OFF Enabling circuit inactive: Signaling output ON Key-operated switch Signaling output clocked operation: (approx. 1.2 Hz) 3TK2845 Multifunction Device Manual 2-23 GWA 4NEB 926 2087-22 DS 01...

  • Page 36: 3Tk2845-.Gb

    Functional Information 2.2.5 3TK2845-.GB.. "Magnetic Force Interlocked Tumbler" The 3TK2845-.GB.. has two sensor inputs (S1 EMERGENCY-STOP with monitored start-up, S2 protective door with tumbler and monitored start-up), one cascading input (CAS/OS with automatic start-up) as well as one door enable input.
  • Page 37 Feedback circuit applications) 1) Electronic signaling output Enabling circuit active: Signaling output OFF Enabling circuit inactive: Signaling output ON Key-operated switch Signaling output clocked operation: (approx. 1.2 Hz) 3TK2845 Multifunction Device Manual 2-25 GWA 4NEB 926 2087-22 DS 01...
  • Page 38 Functional Information 3TK2845 Multifunction Device Manual 2-26 GWA 4NEB 926 2087-22 DS 01...

  • Page 39: Technical Data

    Technical Data Chapter Subject Page Technical Data Terminals Terminal Assignment Dimensional Drawings 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 40: Technical Data

    Degree of protection according to EN 60529, IP20 casing/terminals Shock-hazard protection, DIN VDE 0106/Part Protection against direct contact Weight 0.4 kg Permissible mounting position Shock resistance Sine wave 8/10 and 15/5 g/ms Table 3-1: Technical Data 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 41: Terminals

    Table 3-2: Rated operating currents I Terminals The 3TK2845 multifunction device has a total of 24 terminals available in either screw connection technology or spring-loaded terminal connection technology, which are suitable for the following terminal cross sections: • Terminal connection –...

  • Page 42: Terminal Assignment

    Y 82 A 2- Y 72 Y 82 A 2- Y 34 Y 64 Y 34 Y 64 Y 34 Y 64 Y 34 Y 64 Fig. 3-1: Terminal assignment 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 43: Dimensional Drawings

    Technical Data Dimensional Drawings 28,8 Fig. 3-2: Dimensional drawing 3TK2845-1... 3TK2845-2... 82,6 84,8 105,9 107,7 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...
  • Page 44 Technical Data 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 45: Mounting, Wiring, Initial Start-Up

    Mounting, Wiring, Initial Start-up Chapter Subject Page Mounting and Coding Wiring Meaning of the LED Indicators 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...
  • Page 46 Depending on the ambient conditions, the devices must be installed in switchgear cabinets exhibiting degree of protection IP23, IP43 or IP54. Notice The actuators/sensors must be actuated at least once a year. (Fault detection according to IEC 61508) 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 47: Mounting And Coding

    Mounting, Wiring, Initial Start-up Mounting and Coding The 3TK2845 multifunction device is designed for snap-on mounting on a 35 mm standard mounting rail complying with EN 50 022. The devices can also be screw mounted with two push-in lugs, order number 3RP1903.

  • Page 48: Wiring

    Caution For the non-floating outputs (24, 44, 48, 52) it must be ensured that the actuators or consumers to be switched have the same earth potential as the 3TK2845. Notice External loads must be equipped with a protective circuit which is suitable for the respective load (e.g.

  • Page 49: Fig. 4-4: Sealable Cover Cap

    Activating any sensor leads to a safe switching-off of the multifunction device. Devices equipped with a time delay (3TK2845-B41/B42/B44) have a sealable cover cap to protect the set delay time against unauthorized changes. It can be ordered as accessory (order number 3RP19 02).

  • Page 50: Meaning Of The Led Indicators

    If the device LED flashes red: Configuration has been changed during operation. Green blinking Cross-circuit at the input (device blinks red), Sensor simultaneity not fulfilled Y 72/82 Input passive Green Input active Table 4-1:Meaning of the LED Display 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 51: Applications

    (BWS), such as light curtains, safety mats and EMERGENCY-STOP control switches, can be implemented using only one 3TK2845 multifunction device rather than using several safety relays. In addition, the device is also suited for operational switching, cascading and adding safety relays (either using contacts or switching electronically).

  • Page 52: 3Tk2845-.Hb40 "Monitored Start-Up And Automatic Start-Up", Instantaneous

    3TK2845-.HB40 "Monitored Start-up and Automatic Start-up", Instantaneous Outputs Brief description: Monitoring an EMERGENCY-STOP control switch with monitored start-up, protective door monitoring with automatic start-up and maintenance according to Category 4, EN 954-1. Properties: Stop category 0 according to EN 60204-1;...
  • Page 53 L+(24V DC) Y64 52 Q1-Q4 Q1 Q2 Q3 Q4 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 54: Circuit

    3TK2845-.HB41 "Monitored Start-up and Automatic Start-up", Time-Delayed Outputs Brief description: Monitoring an EMERGENCY-STOP control switch with monitored start-up, and a protective door with automatic start-up and maintenance according to Category 4, EN 954-1. Properties: Stop category 0/1 according to EN 60204-1;...
  • Page 55 L+(24V DC) Y64 52 Q1-Q4 Q1 Q2 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 56: Outputs

    3TK2845-.DB40 "Monitored Start-Up", Instantaneous Outputs Brief description: Monitoring an EMERGENCY-STOP control switch and a protective door with moni- tored start-up and maintenance according to Category 4, EN 954-1. Properties: Stop category 0 according to EN 60204-1; Two electronic enabling circuits;...
  • Page 57 L+(24V DC) Y64 52 Q1-Q4 Q1 Q2 Q3 Q4 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 58: 3Tk2845-.Db41 "Monitored Start-Up", Time-Delayed Outputs

    3TK2845-.DB41 "Monitored Start-Up", Time-Delayed Outputs Brief description: Monitoring an EMERGENCY-STOP control switch with monitored start-up, and a protective door with automatic start-up and maintenance according to Category 4, EN 954-1. Properties: Stop category 0/1 according to EN 60204-1; Two electronic enabling circuits;...
  • Page 59 L+(24V DC) Y64 52 Q1-Q4 Q1 Q2 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

  • Page 60: 3Tk2845-.Eb40 "Enabling Button

    Notice: If faults can be excluded (protected wiring of the control cable), the application's safety category is the same as the safety category of the higher-level safety relay. 3TK2845 Multifunction Device Manual 5-10 GWA 4NEB 926 2087-22 DS 01...
  • Page 61 L+(24V DC) L+(24V DC) Enabling switch I II III Y64 52 Q1-Q4 Q1 Q2 Q3 Q4 3TK2845 Multifunction Device Manual 5-11 GWA 4NEB 926 2087-22 DS 01...

  • Page 62: 3Tk2845-.Fb41/2/4 "Spring Force Interlocked Tumbler

    3TK2845-.FB41/2/4 "Spring Force Interlocked Tumbler" Brief description: Monitoring an EMERGENCY-STOP control switch and protective door monitoring with tumbler (spring force, locked when de-energized) according to Category 4, EN 954-1. Properties: Stop category 0 according to EN 60204-1; Two electronic enabling circuits;...
  • Page 63 Closed Open Actuator E1(+) E 2 (-) Solenoid Protective door 3SE2840-6XX00 3SE2120-1GW L+(24 V DC ) Y 11 Y 35 Y 34 Q1 Q2 3TK2845 Multifunction Device Manual 5-13 GWA 4NEB 926 2087-22 DS 01...

  • Page 64: 3Tk2845-.Gb41/2/4 "Magnetic Force Interlocked Tumbler

    3TK2845-.GB41/2/4 "Magnetic Force Interlocked Tumbler" Brief description: Monitoring an EMERGENCY-STOP control switch and protective door monitoring with tumbler (magnetic force, locked when switched on) according to Category 4, EN 954-1. Properties: Stop category 0/1 according to EN 60204-1; Two electronic enabling circuits;...
  • Page 65 Closed Open Actuator E1(+) E 2 (-) Solenoid Protective door 3SE2830-6XX00 3SE2120-1GW L+(24 V DC ) Y 11 Y 35 Y 34 Q1 Q2 3TK2845 Multifunction Device Manual 5-15 GWA 4NEB 926 2087-22 DS 01...
  • Page 66 3TK2845 Multifunction Device Manual 5-16 GWA 4NEB 926 2087-22 DS 01...
  • Page 67 92220 Amberg, Germany Telephone No. Fax: 09621 / 80-3337 Manual for Safety Switchgear 3TK2845 Multifunction Device Did you come across any mistakes while reading this manual? Please inform us about these mistakes by indicating them on the form provided. We appreciate any comments and/or suggestions that you may have.
  • Page 68 3TK2845 Multifunction Device Manual GWA 4NEB 926 2087-22 DS 01...

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