| SIRIUS, central unit 3RK3 Basic for modular Safety system 3RK3 4/8 F-DI,1F-RO,1 F-DO,24 V DC parameterizable using software Safety ES 45 mm overall width Spring-type terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1) |
| Product brand name | SIRIUS |
| Product category | Modular Safety System |
| Product designation | Central unit |
| General technical data |
| Product function | |
| EMERGENCY STOP function | Yes |
| protective door monitoring | Yes |
| protective door monitoring with tumbler | No |
| muting, 2 sensor-parallel | No |
| muting, 4 sensor-parallel | No |
| muting, 4 sensor-sequential | No |
| Monitoring parameterizable | No |
| 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 acc. 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 | 2 500 V |
| Consumed current for rated value of supply voltage | 1.685 A |
| Protection class IP | IP20 |
| of the enclosure | IP20 |
| of the terminal | IP20 |
| Shock resistance | 15g / 11 ms |
| Vibration resistance acc. to IEC 60068-2-6 | 5 ... 500 Hz: 0.75 mm |
| Operating frequency maximum | 1 000 1/h |
| Mechanical service life (switching cycles) typical | 10 000 000 |
| Product function suitable for AS-i Power24V | No |
| Product function Diagnostics with CTT2 slave | No |
| Protocol is supported ASIsafe (Safety at work) protocol | No |
| 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 |
| Suitability for use for monitoring of optoelectronic protective devices acc. to IEC 61496-1 | Yes |
| Operating power rated value | 4.5 W |
| Communication/ Protocol |
| Protocol optional is supported PROFIBUS DP protocol | Yes; when using the DP interface module; 32 bit cyclical data |
| Protocol is supported AS-interface protocol | No |
| Amount of data of the cyclic user data | |
| for inputs with PROFIBUS DP | 32 bit |
| for outputs with PROFIBUS DP | 32 bit |
| Control circuit/ Control |
| Type of voltage | DC |
| Type of voltage of the control supply voltage | DC |
| Control supply voltage rated value | 24 V |
| Control supply voltage 1 at DC rated value | 24 V |
| Inrush current peak | |
| at 24 V | 70 A |
| Duration of inrush current peak | |
| at 24 V | 1 ms |
| Consumed current for rated value of supply voltage without semiconductor output | 185 mA |
| 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 |
| 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 2-channel | 0 |
| Pulse duration of the contactless semiconductor contact block for switching off safety-related maximum | 1 ms |
| Recovery time of the safe outputs | 420 ms |
| Switching capacity current of semiconductor outputs at DC-13 at 24 V | 1.5 A |
| Installation/ mounting/ dimensions |
| Mounting position | vertical |
| Mounting type | Snap-mounted to DIN rail or screw-mounted with additional push-in lug |
| Height | 113 mm |
| Width | 45 mm |
| Depth | 124 mm |
| Connections/Terminals |
| Product function | |
| removable terminal | Yes |
| removable terminal for control circuit | Yes |
| removable terminal for auxiliary and control circuit | Yes |
| Type of electrical connection | spring-loaded terminals |
| for auxiliary and control current circuit | spring-loaded terminals |
| Type of connectable conductor cross-sections | |
| solid | 2x (0.25 ... 1.5 mm²) |
| finely stranded with core end processing | 2x (0.25 ... 1 mm²) |
| at AWG conductors solid | 2x (24 ... 16) |
| at AWG conductors stranded | 2x (24 ... 16) |
| Connectable conductor cross-section finely stranded with core end processing | 0.25 ... 1.5 mm² |
| AWG number as coded connectable conductor cross section | |
| solid | 24 ... 16 |
| stranded | 24 ... 16 |
| DC resistance of the cable maximum | 100 Ω |
| Safety related data |
| Safety Integrity Level (SIL) acc. to IEC 61508 | SIL CL 3 |
| SIL Claim Limit (subsystem) acc. to EN 62061 | Kat. 4 / SIL3 / Ple |
| Performance level (PL) acc. to EN ISO 13849-1 | e |
| Category acc. to EN ISO 13849-1 | 4 |
| Stop category acc. to DIN EN 60204-1 | 0 / 1 |
| PFHD with high demand rate acc. to EN 62061 | 0.0000000051 1/h |
| Hardware fault tolerance acc. to IEC 61508 | 1 |
| T1 value for proof test interval or service life acc. to IEC 61508 | 20 y |
| Protection against electrical shock | finger-safe |
| Category acc. to EN 954-1 | 4 |
| 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 |
| Electromagnetic compatibility |
| Installation environment regarding EMC | This product is suitable for Class A environments only. It can cause undesired radio-frequency interference in residential environments. If this is the case, the user must take appropriate measures. |
| Conducted interference | |
| due to burst acc. to IEC 61000-4-4 | 2 kV (power ports) / 1 kV (signal ports) |
| due to conductor-earth surge acc. to IEC 61000-4-5 | 2 kV |
| due to conductor-conductor surge acc. to IEC 61000-4-5 | 1 kV |
| Field-bound parasitic coupling acc. to IEC 61000-4-3 | 10 V/m |
| Electrostatic discharge acc. to IEC 61000-4-2 | 4 kV contact discharge / 8 kV air discharge |
| Ambient conditions |
| Installation altitude at height above sea level maximum | 2 000 m |
| Ambient temperature | |
| during operation | -20 ... +60 °C |
| during storage | -40 ... +85 °C |
| during transport | -40 ... +85 °C |
| Air pressure acc. to SN 31205 | 70 ... 106 kPa |
