Siemens 3TK28 - Structure 3 TK2853

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Description of the individual safety relays

3.8 3TK28 safety relays with contactor relay enabling circuits

3TK28 safety relays

Manual, 07/2016, NEB926157502000/RS-AB/003

159

3.8.3.3

Structure 3TK2853

Front view

No.

Meaning

①

Removable terminal block

②

Display LEDs

③

Terminal blocks

④

Labels

Main Page

Table of Contents3
Introduction7
Purpose of this Manual7
Required Basic Knowledge7
Validity Range7
Definitions8
User Responsibility for System Design and Function8
Product-Specific Safety Information9
Intended Use9
Current Information about Operational Safety10
Declaration of Conformity10
General Safety Notes11
Safety Information for Hazardous Areas12
Description of the Individual Safety Relays13
Introduction13
Overview14
General Technical Data18
Cable Lengths19
General Information about Enabling and Signaling Circuits20
3TK28 Safety Relays with Relay Enabling Circuits21
3TK2810-0 Safety Relay21
Applications21
Description of Function and Connection Information21
Structure of the 3TK2810-023
Terminal Assignment23
Display of the Operating State24
State Diagram 3TK2810-025
Technical Data 3TK2810-026
Connection Examples 3TK2810-031
3TK2820 Safety Relay33
Applications33
Description of Function and Connection Information33
Structure 3TK282034
Terminal Assignment34
Display of the Operating State35
Installation 3TK282036
Connection 3TK282038
Technical Data 3TK282042
Connection Examples 3TK282045
3TK2822 / 3TK2823 Safety Relays47
Applications47
Description of Function47
Connection Advice47
Structure 3TK2822/2348
Terminal Assignment48
Display of the Operating State49
State Diagrams 3TK2822 / 3TK282350
Technical Data 3TK2822 / 3TK282351
Connection Examples 3TK2822 / 3TK282354
3TK2821 / 3TK2824 Safety Relays55
Applications55
Description of Function and Connection Information55
Structure 3TK2821/2456
Terminal Assignment56
Display of the Operating State57
State Diagrams 3TK2821 / 3TK282457
Technical Data 3TK2821 / 3TK282458
Connection Examples 3TK2821 / 3TK282461
3TK2824-.A.20 Safety Relay64
Applications64
Description of Function and Connection Information64
Structure 3TK2824-.A.2065
Terminal Assignment65
Display of the Operating State66
State Diagrams 3TK2824-.A.2066
Technical Data 3TK2824-.A.2067
Connection Examples 3TK2824-.A.2070
3TK2825 Safety Relay72
Applications72
Description of Function and Connection Information72
Commissioning72
Structure 3TK282573
Terminal Assignment73
Display of the Operating State74
State Diagrams 3TK282575
Technical Data 3TK282576
Connection Examples 3TK282579
3TK2827 / 3TK2828 Safety Relays82
Applications82
Description of Function and Connection Information82
Structure 3TK2827/2884
Terminal Assignment84
Display of the Operating State85
State Diagrams 3TK2827 / 3TK282886
Technical Data 3TK2827 / 3TK282887
Connection Examples 3TK2827 / 3TK282893
3TK2830 Expansion Unit96
Applications96
Description of Function and Connection Information96
Structure 3TK283097
Terminal Assignment97
Display of the Operating State98
State Diagrams 3TK283098
Technical Data 3TK283099
Connection Examples 3TK2830102
3TK2834 Two-Hand Control Device103
Applications103
Description of Function and Connection Information103
Structure 3TK2834104
Terminal Assignment104
Display of the Operating State105
Technical Data 3TK2834106
Connection Example109
3TK28 Safety Relays with Solid-State Enabling Circuits110
3TK2840 Safety Relay110
Applications110
Description of Function and Connection Information110
Structure 3TK2840111
Terminal Assignment111
Display of the Operating State112
State Diagrams 3TK2840113
Technical Data 3TK2840114
Connection Examples 3TK2840116
3TK2841 Safety Relay118
Applications118
Description of Function and Connection Information118
Structure 3TK2841119
Terminal Assignment119
Display of the Operating State120
State Diagrams 3TK2841121
Technical Data 3TK2841122
Connection Examples 3TK2841124
3TK2842 Safety Relay127
Applications127
Description of Function and Connection Information127
Structure 3TK2842128
Terminal Assignment128
Display of the Operating State129
State Diagrams 3TK2842130
Technical Data 3TK2842131
Connection Examples 3TK2842133
3TK28 Safety Relays with Contactor Relay Enabling Circuits136
3TK2805 / 3TK2806 Safety Relays136
Applications136
Description of Function and Connection Information136
Structure 3TK2805/06137
Terminal Assignment137
Display of the Operating States138
State Diagrams 3TK2805 / 3TK2806138
Technical Specifications 3TK2805/ 3TK2806139
Connection Examples 3TK2805/ 3TK2806140
3TK2850 / 3TK2851 / 3TK2852 Safety Relay142
Applications142
Description of Function and Connection Information142
Structure 3TK285143
Terminal Assignment144
Display of the Operating State145
State Diagrams 3TK2850 / 3TK2851 / 3TK2852146
Technical Data 3TK2850 / 3TK2851 / 3TK2852147
Connection Examples 3TK2850 / 3TK2851 / 3TK2852156
3TK2853 Safety Relay158
Applications158
Description of Function and Connection Information158
Structure 3TK2853159
Terminal Assignment160
Display of the Operating State161
State Diagrams 3TK2853162
Technical Data 3TK2853163
Connection Examples 3TK2853166
3TK2856 / 3TK2857 Safety Relays171
Applications171
Description of Function and Connection Information171
Structure 3TK2856/57172
Terminal Assignment173
Display of the Operating State174
State Diagrams 3TK2856 / 3TK2857175
Technical Data 3TK2856 / 3TK2857176
Connection Examples 3TK2856 / 3TK2857179
Mounting183
Warning Notices183
Mounting the Device on a DIN Rail184
Mounting the Device on a Level Surface185
Disassembling the Device186
Connection189
Connection Data for Terminal Blocks189
Connecting Terminal Blocks190
Disconnecting192
Plugging in Terminal Blocks194
Dimension Drawings195
Dimension Drawings 3TK28195
Accessories205

Siemens 3TK28 - Structure 3 TK2853

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