Siemens 3TK28 User Manual

3TK28 safety relays
Manual, 07/2016, NEB926157502000/RS-AB/003
3
Table of contents
1 Introduction................................................................................................................................... 7
1.1 Purpose of this manual ........................................................................................................ 7
1.2 Required basic knowledge ................................................................................................... 7
1.3 Validity range ...................................................................................................................... 7
1.4 Definitions ........................................................................................................................... 8
1.5 User responsibility for system design and function ............................................................... 8
2 Product-specific safety information .................................................................................................. 9
2.1 Intended use ....................................................................................................................... 9
2.2 Current information about operational safety ...................................................................... 10
2.3 Declaration of conformity ................................................................................................... 10
2.4 General safety notes ......................................................................................................... 11
2.5 Safety information for hazardous areas.............................................................................. 12
3 Description of the individual safety relays ....................................................................................... 13
3.1 Introduction ....................................................................................................................... 13
3.2 Overview ........................................................................................................................... 14
3.3 General technical data ....................................................................................................... 18
3.4 Cable lengths .................................................................................................................... 19
3.5 General information about enabling and signaling circuits .................................................. 20
3.6 3TK28 safety relays with relay enabling circuits ................................................................. 21
3.6.1 3TK2810-0 safety relay ..................................................................................................... 21
3.6.1.1 Applications ....................................................................................................................... 21
3.6.1.2 Description of function and connection information ............................................................ 21
3.6.1.3 Structure of the 3TK2810-0 ............................................................................................... 23
3.6.1.4 Terminal assignment ......................................................................................................... 23
3.6.1.5 Display of the operating state ............................................................................................ 24
3.6.1.6 State diagram 3TK2810-0 .................................................................................................. 25
3.6.1.7 Technical data 3TK2810-0 ................................................................................................. 26
3.6.1.8 Connection examples 3TK2810-0 ...................................................................................... 31
3.6.2 3TK2820 safety relay......................................................................................................... 33
3.6.2.1 Applications ....................................................................................................................... 33
3.6.2.2 Description of function and connection information ............................................................ 33
3.6.2.3 Structure 3TK2820 ............................................................................................................ 34
3.6.2.4 Terminal assignment ......................................................................................................... 34
3.6.2.5 Display of the operating state ............................................................................................ 35
3.6.2.6 Installation 3TK2820 .......................................................................................................... 36
3.6.2.7 Connection 3TK2820 ......................................................................................................... 38
3.6.2.8 Technical data 3TK2820 .............................................................................. 42

Siemens 3TK28 Specifications

General

Type	Safety relay
Mounting Type	DIN rail mounting
Type of Voltage	AC/DC
Control Supply Voltage at DC	24 V
Performance Level According to EN ISO 13849-1	PL e
Category According to EN ISO 13849-1	Category 4
Mechanical Durability	10, 000, 000 cycles
Electrical Durability	100, 000 cycles
Protection Class	IP20
Product Function	Safety Monitoring
Suitability for Use	Emergency stop, safety doors
Supply Voltage Frequency	50/60 Hz
Control Supply Voltage at AC at 50 Hz	24 V
Control Supply Voltage at AC at 60 Hz	24 V
Stop Category	0
SIL According to IEC 61508	SILCL 3
Type of Electrical Connection	Screw Connection
Rated Control Supply Voltage	24 V