Siemens SIRIUS 3SK1 User Manual
Industrial Controls
Safety Engineering
SIRIUS 3SK1 Safety Relays
Manual
04/2013Edition
Answers for industry.
3SK1 safety relays
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Industrial Controls
Safety engineering
3SK1 safety relays
Manual
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Introduction
Product-specific safety
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information
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Product overview for 3SK1
Safety systems - General
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information
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3SK1 devices
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System configuration
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Circuit diagrams
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Mounting
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Connection
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Configuration / operation
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Commissioning
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Display and diagnostics
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Technical data
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Dimension drawings
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Accessories
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Appendix
1
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3
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A
04/2013
A5E02526190021A/RS-AA/01
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.
Siemens AG
Industry Sector
Postfach 48 48
90026 NÜRNBERG
GERMANY
Order number: 3ZX1012-0SK11-0AC0
Ⓟ 04/2013 Technical data subject to change
Copyright © Siemens AG 2013.
All rights reserved
Table of contents
1 Introduction.............................................................................................................................................. 11
1.1 User responsibility for system design and function......................................................................11
1.2
1.3
1.4
1.5 DataMat
1.6 Correction sheet
2 Product-specif
2.1 General safety notes....................................................................................................................15
2.2
2.3 Intended use ................................................................................................................................17
2.4 Current information about operational
2.5
3 Product overview for 3SK
3.1 Overview
3.2 Overview of
3.3 Functional scope of the 3SK1 basic
3.4 Introduction ..................................................................................................................................24
3.5
3.5.1 Standard.......................................................................................................................................25
3.5.1.1 Ty
3.5.2 Advanced
3.5.2.1 Typical sys
Required basic knowledge...........................................................................................................11
Validity range ...............................................................................................................................11
Definitions ....................................................................................................................................11
rix
code...........................................................................................................................12
...........................................................................................................................13
ic safety information .......................................................................................................... 15
Safety information for haza
Declaration of conformity
1 ...................................................................................................................... 19
......................................................................................................................................19
components and accessory parts............................................................................22
3SK1 system...............................................................................................................
pical sys
tem configuration........................................................................................................25
.....................................................................................................................................26
tem configuration........................................................................................................26
rdous areas.......................................................................................17
safety...............................................................................18
.............................................................................................................18
units....................................................................................23
.................25
4 Safe
3SK1 safety relays
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ty systems - General information...................................................................................................... 29
4.1 What is sa
4.2 Safety function ...........................................................................................................
4.3 Basic terminology.........................................................................................................
4.3.1 Redundancy/single-channel and two-channel.............................................................................31
4.3.2
4.3.3 Enabling ci
4.3.4 Signaling ci
4.3.5 Feedback circuit...........................................................................................................................33
4.3.6
4.3.7 Automatic start .........................................................................................................
4.3.8 Manual start ............................................................................................................
Cross-ci
Stop categories .........................................................................................................
fety?.............................................................................................................................29
rcuit detection .................................................................................................................32
rcuit.............................................................................................................................32
rcuit............................................................................................................................33
...................33
....................34
.....................34
..................29
................31
5
Table of contents
4.3.9 Monitored start ............................................................................................................................ 35
4.3.10 Two-hand operation/synchronism............................................................................................... 36
4.3.11 Cascading ...............................................
.................................................................................... 36
4.3.12 Startup testing ............................................................................................................................. 37
4.3.13
Connection of actuators
4.3.14 Series c
onnection of sensors...................................................................................................... 40
.............................................................................................................. 37
5 3SK1
devices........................................................................................................................................... 43
5.1 3SK1 standard ............................................................................................................................ 43
5.1.1
5.1.2 Applic
5.1.3
General information..................................................................................................................... 43
ations................................................................................................................................. 43
3SK1111 Standard basic un
it instantaneous (with relay outputs) .............................................. 44
5.1.3.1 General information..................................................................................................................... 44
5.1.3.2 Func
tion description
5.1.3.3 Design ................................................................................................................
.................................................................................................................... 44
......................... 45
5.1.3.4 Terminal assignment................................................................................................................... 46
5.1.3.5
5.1.3.6 Outputs
5.1.3.7 Display of the operating state
5.1.3.8 Func
5.1.4 3SK1112 Standard basic un
Inputs........................................................................................................................................... 46
........................................................................................................................................ 47
..................................................................................................... 47
tion setting......................................................................................................
..................... 47
it instantaneous (with solid-state outputs)...................................... 50
5.1.4.1 General information..................................................................................................................... 50
5.1.4.2 Func
tion description
5.1.4.3 Design ................................................................................................................
.................................................................................................................... 50
......................... 51
5.1.4.4 Terminal assignment................................................................................................................... 52
5.1.4.5
5.1.4.6 Outputs
5.1.4.7 Display of the operating state
5.1.4.8 Func
Inputs........................................................................................................................................... 52
........................................................................................................................................ 53
..................................................................................................... 53
tion setting......................................................................................................
..................... 54
5.2 3SK1 Advanced .......................................................................................................................... 56
5.2.1
5.2.2 Applic
5.2.3
5.2.4 Function description
General information..................................................................................................................... 56
ations................................................................................................................................. 56
General device
features.............................................................................................................. 57
.................................................................................................................... 57
5.2.5 Functions..................................................................................................................................... 58
5.2.6
3SK1121 Advanced basic unit instanta
5.2.6.1 Device features .......................................................................................................
5.2.6.2 Function description
.................................................................................................................... 60
5.2.6.3 Design ................................................................................................................
neous (with relay outputs)............................................. 60
.................... 60
......................... 61
5.2.6.4 Terminal assignment................................................................................................................... 62
5.2.7
3SK1121 Advanced basic unit time-delayed (with relay outputs
5.2.7.1 Device features .......................................................................................................
5.2.7.2 Design ................................................................................................................
)............................................... 63
.................... 63
......................... 64
5.2.7.3 Terminal assignment................................................................................................................... 65
5.2.8
3SK1122 Advanced basic unit i
5.2.8.1 Device features .......................................................................................................
5.2.8.2 Design ................................................................................................................
nstantaneous (with solid-state outputs) .................................... 67
.................... 67
......................... 68
5.2.8.3 Terminal assignment................................................................................................................... 69
5.2.9
3SK1122 Advanced basic unit time-delayed (with solid-state
5.2.9.1 Device features .......................................................................................................
5.2.9.2 Design ................................................................................................................
outputs) ...................................... 71
.................... 71
......................... 72
5.2.9.3 Terminal assignment................................................................................................................... 73
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Table of contents
5.2.10 3SK1120 Advanced basic unit instantaneous (with solid-state outputs).....................................75
5.2.10.1 Device features ............................................................................................................................75
5.2.10.2 Design...............................................................................................................
5.2.10.3 Terminal assignment..................................................................................................
...........................76
..................77
5.3 3SK1 output expansi
ons..............................................................................................................78
5.3.1 Applications..................................................................................................................................78
5.3.2
Function description
.....................................................................................................................78
5.3.3 Display of the operating state ......................................................................................................79
5.3.4 Func
tion setting
5.3.5 Output expansion 3SK1211................................................................................................
5.3.5.1 Device features .......................................................................................................
5.3.5.2 Design of 3SK1211-.B..0 ...............................................................................................
5.3.5.3 Design of 3SK1211-.BB40...............................................................................................
............................................................................................................................79
.........80
.....................80
..............81
............82
5.3.5.4 Terminal assignment....................................................................................................................83
5.3.6
5.3.6.1 Device features .......................................................................................................
Output expansion 3SK1213................................................................................................
.....................84
5.3.6.2 Design of 3SK1213-.AB40...............................................................................................
5.3.6.3 Design of 3SK1213-.A.20 ...............................................................................................
.........84
............85
.............86
5.3.6.4 Terminal assignment....................................................................................................................86
5.4
3SK1 input expansi
5.4.1 Input expansi
5.4.1.1 Device features .......................................................................................................
ons ................................................................................................................87
on 3SK1220............................................................................................................87
.....................87
5.4.1.2 Applications..................................................................................................................................87
5.4.1.3
Design................................................................................................................
..........................88
5.4.1.4 Terminal assignment....................................................................................................................88
5.4.1.5
5.4.1.6 Func
Display of the operating state ......................................................................................................89
tion setting......................................................................................................
......................89
5.4.2 Power supply 3SK1230................................................................................................................91
5.4.2.1
Device features .......................................................................................................
.....................91
5.4.2.2 Applications..................................................................................................................................91
5.4.2.3
Design................................................................................................................
..........................92
5.4.2.4 Terminal assignment....................................................................................................................93
5.4.2.5
Display of the operating state ......................................................................................................93
6 S
ystem c
onfiguration ............................................................................................................................... 95
6.1 General information .....................................................................................................................95
6.1.1 General notes
6.1.2 General information on the Advanced
6.1.3 Maximum system c
6.2 3ZY12 device
on the Standard sy
stem .......................................................................................95
system.............................................................................95
onfiguration ...................................................................................................96
connector ..............................................................................................................98
6.2.1 Device features ............................................................................................................................98
6.2.2
6.3
7 Circuit diagra
7.1 Internal circuit diagrams
7.1.1 Internal circuit diagram
7.1.2 Internal circuit diagram
7.1.3 Internal circuit diagrams
7.2 Typical c
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Manual, 04/2013, A5E02526190021A/RS-AA/01
Applications................................................................................................................................100
System
configuration rules.........................................................................................................100
ms..................................................................................................................................... 103
.............................................................................................................103
s for 3SK1 Standard basic units............................................................103
s for 3SK1 Advanced basic units ..........................................................105
for expansion units .............................................................................108
ircuits............................................................................................................................111
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