Siemens
ÑÐÅÄÑÒÂÀ ÏÐÎÌÛØËÅÍÍÎÉ ÀÂÒÎÌÀÒÈÇÀÖÈÈ
îôèöèàëüíûé ïàðòíåð Ñèìåíñ
Êàòàëîã ÑÀ01 2018
(4872) 700-366
skenergo@mail.ru

Further information

Home page, see http://www.siemens.com/safety-relays

 

Industry Mall, see http://www.siemens.com/product?3SK

 

Conversion tool e.g. from 3TK28 to 3SK, see http://www.siemens.com/sirius/conversion-tool



SIRIUS 3SK safety relays are the key elements of a consistent, cost-effective safety sequence. Whether you need EMERGENCY-STOP functionality, protective door monitoring, light arrays, laser scanners or the protection of presses or punches – slimline SIRIUS safety relays enable all safety applications to be implemented in the best possible way in terms of engineering and price.

The following safety-related functions are available:

  • Monitoring the safety functions of sensors
  • Monitoring the sensor leads
  • Monitoring the correct device function of the safety relay
  • Monitoring the actuators in the shutdown circuit
  • Safety-related disconnection when dangers arise

SIRIUS 3SK safety relays are approved for applications up to SIL 3 (IEC 61508/IEC 62061) or PL e (EN ISO 13849-1).

Device series

SIRIUS 3SK safety relays stand out on account of their flexibility in both parameterization and system configurations with several evaluation units. Optimized solutions when selecting components are facilitated by a clearly structured component range:

  • 3SK1 Standard basic units
  • 3SK1 Advanced basic units
  • 3SK2 basic units
  • 3SK output expansions
  • 3SK1 input expansions
  • Accessories

3SK1 Standard basic units

The 3SK1 Standard basic units are characterized by the following features:

  • Compact design
  • Simple operation
  • Relay and semiconductor outputs
  • Economical solution

3SK1 Advanced basic units

The 3SK1 Advanced basic units additionally offer:

  • Universal application opportunities thanks to multifunctionality
  • Time-delayed outputs
  • Expansion of inputs and outputs

3SK2 basic units

In addition, 3SK2 basic units offer:

  • Up to six fail-safe, independent shutdown functions
  • Flexible application thanks to software parameterization
  • Powerful semiconductor outputs
  • Convenient diagnostics using diagnostics display and configuration software

In the case of 3SK1 Advanced basic units or 3SK2 basic units, the 3ZY12 device connector allows safety functions involving several sensors and actuators to be set up very quickly.

System configuration example

The 3SK1 and 3SK2 Standard and Advanced series are a high-quality replacement for the 3TK28 safety relays. In their narrower design, and equipped with greater functionality, they can replace every 3TK28 device. The only exceptions to this are 3TK2810 devices.

Overview of functions of the 3SK series

Type

3SK1 Standard basic units

3SK1 Advanced basic units

3SK2 basic units

22.5 mm

45 mm

Safe
relay outputs

Safe semiconductor outputs

Safe
relay outputs

Safe semiconductor outputs

Safe semiconductor outputs

Safe semiconductor outputs

Sensors

  • Mechanical

✓ 

✓ 

✓ 

✓ 

✓ 

✓ 

  • Single-ended

✓1)

✓ 

✓ 

✓ 

✓ 

✓ 

  • Antivalent

--

--

✓ 

✓ 

✓ 

✓ 

  • Expandable

--

✓ By means of cascading

✓ 

✓ 

--

--

Inputs

  • Freely parameterizable

--

--

--

--

10 single-channel,
5 two-channel

20 single-channel,
10 two-channel

Parameter

  • Start (auto/monitored)

✓ 

✓ 

✓ 

✓ 

A large number of functions can be adjusted via software parameterization for each input/output.

  • Sensor connection, 2 x 1-channel/
    1 x 2-channel

✓ Using wiring

✓ 

✓ 

✓ 

  • Cross-circuit detection

✓ Using wiring

✓ 

✓ 

✓ 

  • Start test ON/OFF

--

✓ 

✓ 

✓ 

  • Monitoring of two-hand operator panels acc. to EN 574

--

--

✓ 

✓ 

  • Safety shutdown/pressure-sensitive mat

--

--

✓ 

✓ 

Safe outputs

  • Instantaneous

✓ 

✓ 

✓ 

✓ 

Parameterizable

Parameterizable

  • Time-delayed

--

--

✓ 

✓ 

Parameterizable

Parameterizable

  • Can be expanded using safe relay outputs

✓ Using wiring

✓ Using wiring

✓ 

✓ 

✓ 

✓ 

  • independent

--

--

--

--

✓4)

✓5)

  • Device connectors

--

--

✓ 

✓ 

✓ 

✓ 

Options

  • External memory module

--

--

--

--

--

✓ 

  • Display on device

--

--

--

--

--

✓ 

  • External diagnostic module can be connected

--

--

--

--

✓ 

✓ 

Control supply voltage

  • 24 V DC

✓2)

✓ 

✓ 

✓ 

✓ 

✓ 

  • 110 â€¦ 240 AC/DC 

✓ 

✓6)

✓3)

✓3)

--

--



✓ Available

-- Not available

1) 24 V basic units only.

2) 24 V AC/DC.

3) Possible using 3SK1230 power supply via device connector.

4) Up to 4 independent safe outputs, two of which via device connector.

5) Up to 6 independent safe outputs, two of which via device connector.

6) Possible using 3SK1230 power supply by means of wiring.

Parameter assignment

3SK112 and 3SK1112 with DIP switches

The 3SK112 and 3SK1112 safety relays are configurable safety relays. They are used as evaluation units for typical safety sequences (detect, evaluate, respond). A number of functions can be set using the DIP switches on the front. Thus the 3SK112 and 3SK1112 can be used universally.

DIP switch No.

OFF

ON

Circuit diagram

1

Autostart sensor input

Monitored start sensor input

 

2

Without cross-circuit detection

With cross-circuit detection

3

2 x 1-channel sensor connection

1 x 2-channel sensor connection

4

With start test

Without start test



3SK2 with software

3SK2 safety relays are configured using the SIRIUS Safety ES software. This means that the response of a 3SK2 unit, as well as the function of the individual safe outputs, can be parameterized easily and conveniently in the logic diagram. In addition, the configuration can be printed out for documentation purposes. The software also supports the user during commissioning and troubleshooting by means of online diagnostics and the option of being able to “force" signals in the logic plan. Through this, 3SK2 safety relays are able to offer maximum flexibility and universal application options.

Note:

For more information on SIRIUS Safety ES, see “Parameterization, Configuration and Visualization".

Enclosure concept

Innovative enclosure concept for SIRIUS 3SK safety relays

Connection method

The 3SK safety relays are available with screw or spring-type terminals (push-in).

Spring-type terminals (push-in)

Push-in connections are a form of spring-type terminals allowing fast wiring without tools for rigid conductors or conductors equipped with end sleeves. As with other spring-type terminals, a screwdriver (with 3.0 x 0.5 mm blade) is required to disconnect the conductor. The same tool can also be used to wire finely-stranded or stranded conductors with no end finishing. The advantages of the push-in terminals are found, as with all spring-type terminals, in speed of assembly and disassembly and vibration-proof connection. There is no need for the checking and tightening required with screw terminals.

Seamlessly integrated safety right through to the main circuit

Problem-free integration of functional safety into the main circuit through the simple combination of 3RM1 and 3SK1 devices

Functional safety in the main circuit needs to be both simple and flexible

The unique compatibility of hybrid 3RM1 fail-safe motor starters and 3SK safety relays means that integrated functional safety right through to the main circuit is no longer a problem.

Their compact design allows the motor starters to be installed to the right of the safety relay in a simple manner, just like an output expansion. The wiring of the safety-related signals to the relay can be performed simply, quickly and in an error-free manner using the device connector.

The ergonomically designed enclosure with removable terminals and terminal labeling in the hinged cover allows for the cables to be conveniently diagonally mounted from the front. Either screw-type or spring-loaded terminals with push-in technology are available.

Highlights

  • Fail-safe disconnection of motors up to 3 kW
  • Problem-free combination of fail-safe motor starters and safety relays
  • End-to-end system, simple setup using device connectors
  • Ergonomic enclosure

Note:

For SIRIUS 3RM1 motor starters, see "Motor Starters and Load Feeders > for Operation in the Control Cabinet > SIRIUS 3RM1 Motor Starters".

Article No. scheme

Product versions

Article number

3SK1 safety relays

3SK1

â’

â’

â’

â’

â’

â’

â’

â’

Device version

Basic unit

 

1

        

Expansion unit

 

2

        

Device version, e.g.

3SK11: Standard; 3SK12: Output expansion

  

1

       

3SK11: Advanced; 3SK12; input expansion

  

2

       

Type of outputs

Relay outputs

   

1

      

Semiconductor outputs

   

2

      

Power outputs

   

3

      

Connection type

Screw terminals

     

1

    

Spring-type terminals (push-in)

     

2

    

Control circuits/actuation, e.g.

3SK11: 3 enabling circuits

      

A

   

3SK11: 2 enabling circuits

      

B

   

3SK11: 4 enabling circuits

      

C

   

Type of control supply voltage, e.g.

3SK1213: 24 V AC, 50/60 Hz

       

B

0

 

3SK1: 24 V AC/DC, 50/60 Hz

       

B

3

 

3SK1: 24 V DC

       

B

4

 

3SK1213: 115 V AC, 50/60 Hz

       

J

2

 

3SK1213: 230 V AC, 50/60 Hz

       

L

2

 

3SK1: 110 ... 240 AC/DC; 50/60 Hz

       

W

2

 

Time delay

None

         

0

0.05 ... 3 s

         

1

0.5 ... 30 s

         

2

5 â€¦ 300 s

         

4

Example

3SK1

1

1

1

1

A

B

3

0



Product versions

Article number

3SK2 safety relays

3SK2

1

â’

2

â’

A

A

1

0

Device variants

10 F-DI, 2 F-DQ, width 22.5 mm

  

1

       

10 F-DI, 4 F-DQ, width 45 mm

  

2

       

Connection type

Screw terminals

     

1

    

Spring-type terminals (push-in)

     

2

    

Example

3SK2

1

1

2

1

A

A

1

0



Note:

The Article No. scheme shows an overview of product versions for better understanding of the logic behind the article numbers. For your orders please use the article numbers quoted in the selection and ordering data.

















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