Custom SIEMENS 3RK3 3RK3131-1AC10 modular safety relay Products, Product

SIRIUS, central unit 3RK3 Advanced for modular safety system 3RK3 4/8 F-DI, 1F-RO, 1 F-DO,24 V DC monitoring of AS-i devices control of 12 safe outputs on AS-Interface bus configurable using software Safety ES 45 mm width screw terminal up to SIL 3 (IEC 61508) up to Performance Level E (ISO 13849-1) 9 expansion modules connectable

Product Description

Benefits
  • More functionality and flexibility through freely configurable safety logic
  • Suitable for all safety applications because of its compliance with the highest safety requirements in production automation
  • Suitable for use all over the world through compliance with all product-relevant, globally established certifications
  • Modular hardware configuration
  • Parameterization by means of software instead of wiring
  • Removable terminals for greater plant availability
  • Distributed detection of sensors and disconnection of actuators through AS-Interface
  • All logic functions can also be used for AS-Interface, e.g. muting, protective door with tumbler
  • Up to 12 independent safe switch-off groups on the AS-i bus
  • Clearly expandable project data volume facilitated by AS-Interface
  • Up to 50 dual-channel enabling circuits per system
Communication via PROFIBUS/PROFINET

The 3RK3 Modular Safety System can be connected to PROFINET or PROFIBUS through communication modules and exchange data with higher-level control systems.

The MSS supports among other things:

  • Cyclic and acyclic data (data records)
  • Exchange of 32-bit cyclic data with MSS Basic or 64-bit cyclic data with MSS Advanced/MSS ASIsafe
  • Diagnostics using data record invocations
  • Access with Safety ES via fieldbus
AS-Interface communication

Using the Advanced and ASIsafe "basic" and "extended" central units, the 3RK3 Modular Safety System can be integrated in AS-Interface.

  • MSS can read and evaluate the I/O data of up to 31 AS-i modules.
  • Up to 12 safe output signals per MSS can be placed on the AS-i bus for switching safe AS-i output modules or for fail-safe cross traffic between multiple MSS stations.
  • Safe cross traffic between multiple MSS stations or between one MSS and AS-i safety monitors
  • Standard signals, e.g. for acknowledgment, can also be output on the AS-i bus
product brand name SIRIUS
product category Modular Safety System
product designation Central unit
design of the product 4/8 F-DI, 1 F-RO, 1 F-DO
suitability for use for monitoring of optoelectronic protective devices according to IEC 61496-1 Yes
suitability for use
● monitoring of floating sensors Yes
● monitoring of non-floating sensors Yes
● position switch monitoring Yes
● EMERGENCY-OFF circuit monitoring Yes
● valve monitoring Yes
● opto-electronic protection device monitoring Yes
● proximity switch monitoring Yes
● safety-related circuits Yes
General technical data
product function
● EMERGENCY STOP function Yes
● protective door monitoring Yes
● protective door monitoring with tumbler Yes
● muting, 2 sensor-parallel Yes
● muting, 4 sensor-parallel Yes
● muting, 4 sensor-sequential Yes
● monitoring parameterizable Yes
● evaluation: electro-sensitive protective equipment Yes
● evaluation: selector switch Yes
● pressure-sensitive mat monitoring Yes
● evaluation: two-hand operator panel Yes
● evaluation: enabling switch Yes
● monitored start-up Yes
● two-hand control according to EN 574 Yes
number of function blocks typical 300
insulation voltage rated value 300 V
degree of pollution 3
surge voltage resistance rated value 2500 V
consumed current for rated value of supply voltage 1.685 A
protection class IP
● of the enclosure IP20
● of the terminal IP20
shock resistance 15g / 11 ms
vibration resistance according to IEC 60068-2-6 5 ... 500 Hz: 0.75 mm
operating frequency maximum 1000 1/h
mechanical service life (operating cycles) typical 10 000 000
reference code according to IEC 81346-2 K
Substance Prohibitance (Date) 05/28/2009
SVHC substance name Lead - 7439-92-1
Lead monoxide (lead oxide) - 1317-36-8
2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol - 79-94-7
6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol - 119-47-1
Diboron trioxide - 1303-86-2
Weight 0.38 kg
product function suitable for AS-i Power24V Yes
product function diagnostics with CTT2 slave Yes
number of safe signals for remote shutdown or cross traffic by means of AS-interface 12
consumed current from profile conductors of the AS-Interface
● at 30 V maximum 45 mA
● at 24 V with AS-i Power24V maximum 45 mA
Ambient conditions
installation altitude at height above sea level maximum 2000 m
ambient temperature
● during operation -20 ... +60 °C
● during storage -40 ... +85 °C
● during transport -40 ... +85 °C
air pressure according to SN 31205 70 ... 106 kPa
Electromagnetic compatibility
installation environment regarding EMC This product is suitable for Class A environments only. In household environments, this device can cause unwanted radio interference. The user is required to implement appropriate measures in this case.
conducted interference
● due to burst according to IEC 61000-4-4 2 kV (power ports) / 1 kV (signal ports)
● due to conductor-earth surge according to IEC 61000-4-5 2 kV
● due to conductor-conductor surge according to IEC 61000-4-5 1 kV
field-based interference according to IEC 61000-4-3 10 V/m
electrostatic discharge according to IEC 61000-4-2 4 kV contact discharge / 8 kV air discharge
Safety related data
diagnostics test interval by internal test function maximum 1000 s
stop category according to IEC 60204-1 0 / 1
category according to EN 954-1 4
IEC 62061
SIL Claim Limit (subsystem) according to EN 62061 Kat. 4 / SIL3 / Ple
Safety Integrity Level (SIL)
● according to IEC 62061 SIL 3
PFHD with high demand rate
● according to IEC 62061 7E-9 1/h
ISO 13849
performance level (PL) according to EN ISO 13849-1 PL e
category according to EN ISO 13849-1 4
performance level (PL)
● according to ISO 13849-1 PL e
IEC 61508
Safety Integrity Level (SIL)
● according to IEC 61508 3
hardware fault tolerance
● according to IEC 61508 1
T1 value
● for proof test interval or service life according to IEC 61508 20 a
Electrical Safety
touch protection against electrical shock finger-safe
Short-circuit protection
design of the fuse link for short-circuit protection of the NO contacts of the relay outputs required NH Type 3NA, DIAZED Type 5SB, NEOZED Type 5SE
Inputs/ Outputs
product function
● parameterizable inputs Yes
● parameterizable outputs Yes
number of inputs
● safety-related 8
● non-safety-related 0
input delay time 0 ... 150 ms
ingress aquisition time at digital input maximum 60 ms
input delay time at digital input maximum 150 ms
number of outputs
● safety-related 2-channel 2
● for testing contact-based sensors 2
number of outputs as contact-affected switching element safety-related
● 1-channel 0
● 2-channel 1
number of outputs as contact-less semiconductor switching element
● safety-related 2-channel 1
● non-safety-related 0
design of the contactless switching element safety-related P potential
pulse duration of the contactless semiconductor contact block for switching off safety-related maximum 1 ms
recovery time of the safe outputs 420 ms
dark period of the common drivers 1 ms
switching capacity current of semiconductor outputs at DC-13 at 24 V 1.5 A
Communication/ Protocol
protocol optional is supported
● PROFIBUS DP protocol Yes; when using the DP interface module; 64 bit cyclical data
protocol is supported AS-Interface protocol Yes
Control circuit/ Control
type of voltage DC
control supply voltage rated value 24 V
operating range factor control supply voltage rated value at DC
● initial value 0.85
● full-scale value 1.15
inrush current peak
● at 24 V 70 A
duration of inrush current peak
● at 24 V 1 ms
operating power rated value 4.5 W
Installation/ mounting/ dimensions
mounting position vertical
fastening method Snap-mounted to DIN rail or screw-mounted with additional push-in lug
height 111 mm
width 45 mm
depth 124 mm
Connections/ Terminals
product function removable terminal Yes
type of electrical connection screw terminal
type of connectable conductor cross-sections
● solid 1x (0.5 ... 4.0mm²), 2x (0.5 ... 2.5 mm²)
● finely stranded with core end processing 1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²)
● for AWG cables solid 2x (20 ... 14)
● for AWG cables stranded 2x (20 ... 14)
connectable conductor cross-section finely stranded with core end processing 0.5 ... 2.5 mm²
AWG number as coded connectable conductor cross section
● solid 20 ... 14
● stranded 20 ... 14
DC resistance of the cable maximum 100 Ω
Product brand name SIRIUS
product category Modular Safety System
product designation Central unit
Article number 3RK3131-1AC10
Life cycle status Phase Out Announce
Product Family 3RK31 central units
EAN 4011209684270
UPC 040892913293
Commodity Code 85371098
Export Control Regulations AL : N / ECCN : 9N9999
Standard delivery time 5 Day/Days
Packaging dimensions (L x W x H) 133.00 x 52.50 x 133.00 mm
Net weight 0.380 Kg
Quantity Unit 1 Piece
Packaging Quantity 1
Dangerous goods No
modular safety relay

3RK3131-1AC10 modular safety relay Documentation

Frequently Asked Questions
What are the main communication protocols supported by the 3RK3 modular safety system?
The system supports communication via PROFINET, PROFIBUS, and AS-Interface networks through respective communication modules, enabling smooth integration with higher-level control systems.
What is the safety integrity rating for the 3RK3131-1AC10 relay?
It meets safety requirements up to SIL 3 according to IEC 62061, Category 4 according to EN 954-1, and PL e according to ISO 13849-1.
How many safety-related inputs and outputs does this central unit contain?
The unit has 8 safety-related inputs, 2 safety-related 2-channel outputs, and 2 outputs dedicated for testing contact-based sensors.
What type of electrical terminals are configured on this safety relay?
It features removable screw terminals, allowing for easy configuration, maintenance, and enhanced plant availability.
What are the environmental storage and operating temperatures?
The device functions within an operating temperature range of -20 °C to +60 °C, and can be safely stored or transported between -40 °C and +85 °C.
Is this unit suitable for DIN rail mounting?
Yes, it is designed for vertical mounting and can be snap-mounted onto a standard DIN rail or screw-mounted with an additional push-in lug.

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