Siemens SIRIUS 3SK1 User Manual

3SK1 safety relays
Manual, 04/2013, A5E02526190021A/RS-AA/01
5
Table of contents
1 Introduction.............................................................................................................................................. 11
1.1 User responsibility for system design and function......................................................................11
1.2
Required basic knowledge...........................................................................................................11
1.3
Validity range ...............................................................................................................................11
1.4
Definitions ....................................................................................................................................11
1.5 DataMat
rix
code...........................................................................................................................12
1.6 Correction sheet
...........................................................................................................................13
2 Product-specif
ic safety information .......................................................................................................... 15
2.1 General safety notes....................................................................................................................15
2.2
Safety information for haza
rdous areas.......................................................................................17
2.3 Intended use ................................................................................................................................17
2.4 Current information about operational
safety...............................................................................18
2.5
Declaration of conformity
.............................................................................................................18
3 Product overview for 3SK
1 ...................................................................................................................... 19
3.1 Overview
......................................................................................................................................19
3.2 Overview of
components and accessory parts............................................................................22
3.3 Functional scope of the 3SK1 basic
units....................................................................................23
3.4 Introduction ..................................................................................................................................24
3.5
3SK1 system...............................................................................................................
.................25
3.5.1 Standard.......................................................................................................................................25
3.5.1.1 Ty
pical sys
tem configuration........................................................................................................25
3.5.2 Advanced
.....................................................................................................................................26
3.5.2.1 Typical sys
tem configuration........................................................................................................26
4 Safe
ty systems - General information...................................................................................................... 29
4.1 What is sa
fety?.............................................................................................................................29
4.2 Safety function ...........................................................................................................
..................29
4.3 Basic terminology.........................................................................................................
................31
4.3.1 Redundancy/single-channel and two-channel.............................................................................31
4.3.2
Cross-ci
rcuit detection .................................................................................................................32
4.3.3 Enabling ci
rcuit.............................................................................................................................32
4.3.4 Signaling ci
rcuit............................................................................................................................33
4.3.5 Feedback circuit...........................................................................................................................33
4.3.6
Stop categories .........................................................................................................
...................33
4.3.7 Automatic start .........................................................................................................
....................34
4.3.8 Manual start ............................................................................................................
.....................34

Siemens SIRIUS 3SK1 Specifications

General

Brand	Siemens
Model	SIRIUS 3SK1
Category	Relays
Language	English