|
| | | |
?
SIRIUS 3SK1 safety relays are the key elements of a consistent, cost-effective safety chain. Whether you need EMERGENCY-STOP disconnection, protective door monitoring, light arrays, laser scanners or the protection of presses or punches – with SIRIUS safety relays 22.5 mm wide every safety application can be implemented to optimum effect in terms of engineering and price.
The following safety-related functions are available:
- Monitoring the safety functions of sensors
- Monitoring the sensor leads
- Monitoring correct functioning of safety relays
- Monitoring the actuators in the shutdown circuit
- Safety-related disconnection when dangers arise
SIRIUS 3SK1 safety relays are approved for applications up to SIL 3 (IEC 61508/IEC 62061) or PL e (EN ISO 13849-1).
SIRIUS 3SK1 safety relays stand out due to their flexibility for both parameterization and system designs with several evaluation units. Optimized solutions when selecting components are facilitated by a clearly structured component range:
- Standard basic units
- Advanced basic units
- Output expansions
- Input expansions
- Accessories
The 3SK1 Standard basic units are characterized by the following features:
- Compact design
- Simple operation
- Relay and semiconductor outputs
- Economical solution
However, the 3SK1 Advanced basic units also offer the following:
- Universal application opportunities thanks to multifunctionality
- Time-delayed outputs
- Expansion of inputs and outputs
In the case of Advanced basic units, the 3ZY1 device connector allows safety functions involving several sensors and actuators to be constructed very quickly.
System configuration example
The 3SK1 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 are devices with special functions, such as 3TK2826, 3TK2845 and the 3TK2810 devices. See below for a conversion table from 3TK28 to 3SK1.
Note:
For the conversion table, e.g. from 3TK28 to 3SK1, see below or the conversion tool http://www.siemens.com/sirius/conversion-tool.
Functional overview of the 3SK1 series
|
Type
|
Standard basic units
|
Advanced basic units
|
|
|
Relay enabling circuits
|
Solid-state enabling circuits
|
Relay enabling circuits
|
Solid-state enabling circuits
|
|
Sensors
|
|
|
?
|
?
|
?
|
?
|
|
|
?1)
|
?
|
?
|
?
|
|
|
--
|
--
|
?
|
?
|
|
|
--
|
? by means of cascading
|
?
|
?
|
|
Parameter
|
|
|
?
|
?
|
?
|
?
|
- Sensor connection, 2 x 1-channel/
1 x 2-channel
|
? Using wiring
|
?
|
?
|
?
|
|
|
? Using wiring
|
?
|
?
|
?
|
|
|
--
|
?
|
?
|
?
|
- Monitoring of two-hand operator panels acc. to EN 574
|
--
|
--
|
?
|
?
|
|
Enabling circuits
|
|
|
?
|
?
|
?
|
?
|
|
|
--
|
--
|
?
|
?
|
- Expandable with relay enabling circuits
|
? Using wiring
|
? Using wiring
|
?
|
?
|
|
|
--
|
--
|
?
|
?
|
|
Rated control supply voltage
|
|
|
?2)
|
?
|
?
|
?
|
|
|
?
|
--
|
?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.
3SK112 and 3SK1112 safety relays with DIP switch
The 3SK112 and 3SK1112 safety relays are configurable safety relays. They are used as evaluation units for typical safety chains (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 crossover monitoring
|
With crossover monitoring
|
|
3
|
2 x single-channel sensor connection
|
1 x 2-channel sensor connection
|
|
4
|
with start test
|
without start test
|
Innovative enclosure concept for the SIRIUS 3SK1 safety relays
Can be expanded by adding the 3RM1 motor starter
With previous safety relay and motor starter designs an enormous amount of wiring was required to monitor the motor starters in safety applications.
Traditional system design
With the integration of the SIRIUS 3RM1 motor starter into the SIRIUS 3SK1 safety relay system family, this wiring has been minimized for the first time.
Motors up to 3 kW can easily be integrated into the safety relay system using SIRIUS 3ZY1 device connectors, without having to run a cable between the evaluation unit and the motor starter.
3SK1 and 3RM1 system design
Conversion table
The table below lists the existing 3TK28 article numbers with the corresponding 3SK1 article numbers.
|
Article number
3TK28 basic units
|
Article number
3SK1 Standard basic units
|
Article number
3SK1 Advanced basic units
|
|
3TK2820
|
|
3TK2820-1AJ20
|
3SK1111-1AW20
|
3SK1121-1AB40 + 3SK1230-1AW20
|
|
3TK2820-1AL20
|
3SK1111-1AW20
|
3SK1121-1AB40 + 3SK1230-1AW20
|
|
3TK2820-1CB30
|
3SK1111-1AB30
|
3SK1121-1AB40
|
|
3TK2820-2AJ20
|
3SK1111-2AW20
|
3SK1121-2AB40 + 3SK1230-2AW20
|
|
3TK2820-2AL20
|
3SK1111-2AW20
|
3SK1121-2AB40 + 3SK1230-2AW20
|
|
3TK2820-2CB30
|
3SK1111-2AB30
|
3SK1121-2AB40
|
|
3TK2821
|
|
3TK2821-1CB30
|
3SK1111-1AB30
|
3SK1121-1AB40
|
|
3TK2821-2CB30
|
3SK1111-2AB30
|
3SK1121-2AB40
|
|
3TK2822
|
|
3TK2822-1CB30
|
3SK1111-1AB30
|
3SK1121-1AB40
|
|
3TK2822-2CB30
|
3SK1111-2AB30
|
3SK1121-2AB40
|
|
3TK2823
|
|
3TK2823-1CB30
|
3SK1111-1AB30
|
3SK1121-1AB40
|
|
3TK2823-2CB30
|
3SK1111-2AB30
|
3SK1121-2AB40
|
|
3TK2824
|
|
3TK2824-1AJ20
|
3SK1111-1AW20
|
3SK1121-1AB40 + 3SK1230-1AW20
|
|
3TK2824-1AL20
|
3SK1111-1AW20
|
3SK1121-1AB40 + 3SK1230-1AW20
|
|
3TK2824-1BB40
|
3SK1111-1AB30
|
3SK1121-1AB40
|
|
3TK2824-1CB30
|
3SK1111-1AB30
|
3SK1121-1AB40
|
|
3TK2824-2AJ20
|
3SK1111-2AW20
|
3SK1121-2AB40 + 3SK1230-2AW20
|
|
3TK2824-2AL20
|
3SK1111-2AW20
|
3SK1121-2AB40 + 3SK1230-2AW20
|
|
3TK2824-2BB40
|
3SK1111-2AB30
|
3SK1121-2AB40
|
|
3TK2824-2CB30
|
3SK1111-2AB30
|
3SK1121-2AB40
|
|
3TK2825
|
|
3TK2825-1AB20
|
3SK1111-1AW20
|
3SK1121-1AB40 + 3SK1230-1AW20
|
|
3TK2825-1AJ20
|
3SK1111-1AW20
|
3SK1121-1AB40 + 3SK1230-1AW20
|
|
3TK2825-1AL20
|
3SK1111-1AW20
|
3SK1121-1AB40 + 3SK1230-1AW20
|
|
3TK2825-1BB40
|
3SK1111-1AB30
|
3SK1121-1AB40
|
|
3TK2825-2AB20
|
3SK1111-2AW20
|
3SK1121-2AB40 + 3SK1230-2AW20
|
|
3TK2825-2AJ20
|
3SK1111-2AW20
|
3SK1121-2AB40 + 3SK1230-2AW20
|
|
3TK2825-2AL20
|
3SK1111-2AW20
|
3SK1121-2AB40 + 3SK1230-2AW20
|
|
3TK2825-2BB40
|
3SK1111-2AB30
|
3SK1121-2AB40
|
|
3TK2827
|
|
3TK2827-1AB20
|
--
|
--
|
|
3TK2827-1AB21
|
--
|
--
|
|
3TK2827-1AJ20
|
--
|
3SK1121-1CB42 + 3SK1230-1AW20
|
|
3TK2827-1AJ21
|
--
|
3SK1121-1CB41 + 3SK1230-1AW20
|
|
3TK2827-1AL20
|
--
|
3SK1121-1CB42 + 3SK1230-1AW20
|
|
3TK2827-1AL21
|
--
|
3SK1121-1CB41 + 3SK1230-1AW20
|
|
3TK2827-1BB40
|
--
|
3SK1121-1CB42
|
|
3TK2827-1BB41
|
--
|
3SK1121-1CB41
|
|
3TK2827-2AB20
|
--
|
--
|
|
3TK2827-2AB21
|
--
|
--
|
|
3TK2827-2AJ20
|
--
|
3SK1121-2CB42 + 3SK1230-2AW20
|
|
3TK2827-2AJ21
|
--
|
3SK1121-2CB41 + 3SK1230-2AW20
|
|
3TK2827-2AL20
|
--
|
3SK1121-2CB42 + 3SK1230-2AW20
|
|
3TK2827-2AL21
|
--
|
3SK1121-2CB41 + 3SK1230-2AW20
|
|
3TK2827-2BB40
|
--
|
3SK1121-2CB42
|
|
3TK2827-2BB41
|
--
|
3SK1121-2CB41
|
|
3TK2828
|
|
3TK2828-1AB20
|
--
|
--
|
|
3TK2828-1AB21
|
--
|
--
|
|
3TK2828-1AJ20
|
--
|
3SK1121-1CB42 + 3SK1230-1AW20
|
|
3TK2828-1AJ21
|
--
|
3SK1121-1CB41 + 3SK1230-1AW20
|
|
3TK2828-1AL20
|
--
|
3SK1121-1CB42 + 3SK1230-1AW20
|
|
3TK2828-1AL21
|
--
|
3SK1121-1CB41 + 3SK1230-1AW20
|
|
3TK2828-1BB40
|
--
|
3SK1121-1CB42
|
|
3TK2828-1BB41
|
--
|
3SK1121-1CB41
|
|
3TK2828-2AB20
|
--
|
--
|
|
3TK2828-2AB21
|
--
|
--
|
|
3TK2828-2AJ20
|
--
|
3SK1121-2CB42 + 3SK1230-2AW20
|
|
3TK2828-2AJ21
|
--
|
3SK1121-2CB41 + 3SK1230-2AW20
|
|
3TK2828-2AL20
|
--
|
3SK1121-2CB42 + 3SK1230-2AW20
|
|
3TK2828-2AL21
|
--
|
3SK1121-2CB41 + 3SK1230-2AW20
|
|
3TK2828-2BB40
|
--
|
3SK1121-2CB42
|
|
3TK2830
|
|
3TK2830-1AJ20
|
3SK1211-1BW20
|
3SK1211-1BB40
|
|
3TK2830-1AL20
|
3SK1211-1BW20
|
3SK1211-1BB40
|
|
3TK2830-1CB30
|
3SK1211-1BB40
|
3SK1211-1BB40
|
|
3TK2830-2AJ20
|
3SK1211-2BW20
|
3SK1211-2BB40
|
|
3TK2830-2AL20
|
3SK1211-2BW20
|
3SK1211-2BB40
|
|
3TK2830-2CB30
|
3SK1211-2BB40
|
3SK1211-2BB40
|
|
3TK2834
|
|
3TK2834-1AB20
|
--
|
--
|
|
3TK2834-1AJ20
|
--
|
3SK1121-1AB40 + 3SK1230-1AW20
|
|
3TK2834-1AL20
|
--
|
3SK1121-1AB40 + 3SK1230-1AW20
|
|
3TK2834-1BB40
|
--
|
3SK1121-1AB40
|
|
3TK2834-2AB20
|
--
|
--
|
|
3TK2834-2AJ20
|
--
|
3SK1121-2AB40 + 3SK1230-2AW20
|
|
3TK2834-2AL20
|
--
|
3SK1121-2AB40 + 3SK1230-2AW20
|
|
3TK2834-2BB40
|
--
|
3SK1121-2AB40
|
|
3TK2840
|
|
3TK2840-1BB40
|
3SK1112-1BB40
|
3SK1122-1AB40
|
|
3TK2840-2BB40
|
3SK1112-2BB40
|
3SK1122-2AB40
|
|
3TK2841
|
|
3TK2841-1BB40
|
3SK1112-1BB40
|
3SK1122-1AB40
|
|
3TK2841-2BB40
|
3SK1112-2BB40
|
3SK1122-2AB40
|
|
3TK2842
|
|
3TK2842-1BB41
|
--
|
3SK1122-1CB41
|
|
3TK2842-1BB42
|
--
|
3SK1122-1CB42
|
|
3TK2842-1BB44
|
--
|
3SK1122-1CB44
|
|
3TK2842-2BB41
|
--
|
3SK1122-2CB41
|
|
3TK2842-2BB42
|
--
|
3SK1122-2CB42
|
|
3TK2842-2BB44
|
--
|
3SK1122-2CB44
|
|
3TK2850
|
|
3TK2850-1AJ20
|
3SK1111-1AW20 + 3SK1213-1AJ20
|
3SK1120-1AB40 + 3SK1213-1AB40
|
|
3TK2850-1AL20
|
3SK1111-1AW20 + 3SK1213-1AL20
|
3SK1120-1AB40 + 3SK1213-1AB40
|
|
3TK2850-1BB40
|
3SK1111-1AB30 + 3SK1213-1AB40
|
3SK1120-1AB40 + 3SK1213-1AB40
|
|
3TK2850-2AJ20
|
3SK1111-2AW20 + 3SK1213-2AJ20
|
3SK1120-2AB40 + 3SK1213-2AB40
|
|
3TK2850-2AL20
|
3SK1111-2AW20 + 3SK1213-2AL20
|
3SK1120-2AB40 + 3SK1213-2AB40
|
|
3TK2850-2BB40
|
3SK1111-2AB30 + 3SK1213-2AB40
|
3SK1120-2AB40 + 3SK1213-2AB40
|
|
3TK2851
|
|
3TK2851-1AJ20
|
3SK1111-1AW20 + 3SK1213-1AJ20
|
3SK1120-1AB40 + 3SK1213-1AB40
|
|
3TK2851-1AL20
|
3SK1111-1AW20 + 3SK1213-1AL20
|
3SK1120-1AB40 + 3SK1213-1AB40
|
|
3TK2851-1BB40
|
3SK1111-1AB30 + 3SK1213-1AB40
|
3SK1120-1AB40 + 3SK1213-1AB40
|
|
3TK28 51-2AJ20
|
3SK1111-2AW20 + 3SK1213-2AJ20
|
3SK1120-2AB40 + 3SK1213-2AB40
|
|
3TK2851-2AL20
|
3SK1111-2AW20 + 3SK1213-2AL20
|
3SK1120-2AB40 + 3SK1213-2AB40
|
|
3TK2851-2BB40
|
3SK1111-2AB30 + 3SK1213-2AB40
|
3SK1120-2AB40 + 3SK1213-2AB40
|
|
3TK2852
|
|
3TK2852-1AL20
|
3SK1111-1AW20 + 3SK1213-1AL20
|
3SK1120-1AB40 + 3SK1213-1AB40
|
|
3TK2852-1BB40
|
3SK1111-1AB30 + 3SK1213-1AB40
|
3SK1120-1AB40 + 3SK1213-1AB40
|
|
3TK2852-2AL20
|
3SK1111-2AW20 + 3SK1213-2AL20
|
3SK1120-2AB40 + 3SK1213-2AB40
|
|
3TK2852-2BB40
|
3SK1111-2AB30 + 3SK1213-2AB40
|
3SK1120-2AB40 + 3SK1213-2AB40
|
|
3TK2853
|
|
3TK2853-1BB40
|
3SK1111-1AB30 + 3SK1213-1AB40
|
3SK1120-1AB40 + 3SK1213-1AB40
|
|
3TK2853-2BB40
|
3SK1111-2AB30 + 3SK1213-2AB40
|
3SK1120-2AB40 + 3SK1213-2AB40
|
|
3TK2856
|
|
3TK2856-1BB40
|
3SK1213-1AB40
|
3SK1213-1AB40
|
|
3TK2856-2BB40
|
3SK1213-2AB40
|
3SK1213-2AB40
|
|
3TK2857
|
|
3TK2857-1BB41
|
--
|
3SK1213-1AB40 (delay as for basic unit)
|
|
3TK2857-1BB42
|
--
|
3SK1213-1AB40 (delay as for basic unit)
|
|
3TK2857-1BB44
|
--
|
3SK1213-1AB40 (delay as for basic unit)
|
|
3TK2857-2BB41
|
--
|
3SK1213-2AB40 (delay as for basic unit)
|
|
3TK2857-2BB42
|
--
|
3SK1213-2AB40 (delay as for basic unit)
|
|
3TK2857-2BB44
|
--
|
3SK1213-2AB40 (delay as for basic unit)
|
Note:
Conversion tool, e.g. from 3TK28 to 3SK1 see www.siemens.com/sirius/conversion-tool.
Article No. scheme
|
Digit of the article No.
|
1. - 3.
???
|
4.
?
|
5.
?
|
6.
?
|
7.
?
|
–
|
8.
?
|
9.
A
|
10.
?
|
11.
?
|
12.
?
|
|
Safety relays
|
3SK
|
|
|
|
|
|
|
|
|
|
|
|
Generation
|
|
?
|
|
|
|
|
|
|
|
|
|
|
Device version
|
|
|
?
|
|
|
|
|
|
|
|
|
|
Device series
|
|
|
|
?
|
|
|
|
|
|
|
|
|
Type of outputs
|
|
|
|
|
?
|
|
|
|
|
|
|
|
Connection type
|
|
|
|
|
|
|
?
|
|
|
|
|
|
Rated control supply voltage
|
|
|
|
|
|
|
|
|
?
|
|
|
|
Type of rated control supply voltage
|
|
|
|
|
|
|
|
|
|
?
|
|
|
Time delay
|
|
|
|
|
|
|
|
|
|
|
?
|
|
Example
|
3SK
|
1
|
1
|
2
|
1
|
–
|
1
|
A
|
B
|
4
|
0
|
Note:
The article No. scheme is presented here merely for information purposes and for better understanding of the logic behind the article numbers.
|
