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SMX 31R-4/2

Digital I/O-Expansion module for the SMXcompact - Basic modules

  • 12 Safe digital inputs
  • 4 Relay outputs
  • 6 Digital I/Os
  • 2 Auxiliary / pulse outputs
  • Safety controller up to PL e acc. to EN ISO 13849-1 or SIL3 acc. to IEC 61508
  • Characteristics

    • Pulse outputs for cross-shorting detection of digital input signals
    • External contact monitoring of connected switchgear (EMU)
    • Comprehensive diagnostics functions integrated
    • Assembly on top hat rail
    • Safety related characteristic data
      Performance Level PL e (EN ISO 13849-1)
      PFH1) / architecture

      9,2 FIT / Cat 4 1)
      1-channel per Rel 20 FIT (max. 8)
      2-channel per Rel 1,0 FIT (max. 4)

      Safety Integrity Level SIL 3 (IEC 61508)
      Proof test interval 20 years = max. operating period
    • General data
      Max. no. of expansion modules   -
      Interface for expansion modules   T-bus connector, pluggable in top-hat rail
      Number of safe digital inputs   12
      Number of safe digital outputs   -
        pp-switching ** -
        pn-switching ** -
      Number of safe digital I/O   6
      Number of relay outputs   4
      Number of safe analogue inputs   -
      Number of auxiliary outputs   2
      Number of pulse outputs (clock outputs)   2
      Type of connection   Plug-in terminals with spring or screw connection
      Axis monitoring   -/-
      Encoder interfaces (D-Sub / screw terminals)   -/-
      ** pn/pp are configurable via SafePLC²
      1) Value applies only for extension module
      For a total assessment in accordance with EN ISO 13849-1 one must use a sries connection with the corresponding basic device => PFHlogic = PFHBasic+ PFHExtension
    • Electrical data
      Fuse X11.1   min. 30 VDC; max. 10A
      Max. Power consumption (logic)      
        SMX31R-4/2   7,1W
      Rated data digital inputs     24 VDC; 20 mA Typ1 acc. to IEC 61131-2
      Rated data digital outputs      
        auxiliary outputs   24 VDC; 250mA
        pulse outputs (clock outputs)   24 VDC; 250mA
        digital I/O 01 - 05 24 VDC; 0,5A
          06 - 10 24 VDC; 2A*
      Rated data relays      
        Normally open DC 13 24 VDC; 2A
          AC 15 230 VDC; 2A
        Normally closed (read back contact) DC 13 24 VDC; 2A
      See „Derating outputs“
    • Derating outputs

      » Maximum current load based on temperature
      » The maximum total current is 10A

      Type of module Outputs Temperature 30°C/50°C
      SMX31R-4/2/x IQ 6 2A / 1,8A
    • Environmental data
      Temperature 0°C … +50°C operation
        -25°C … +70°C storage and transport
      Class of protection IP 20
      Climatic category 3K3 acc. to DIN EN 60721-3
      Min-, Maximum relative humidity (no condensation) 5% - 85%
      EMC DIN EN 61000-6-2, DIN EN 61000-6-4, DIN EN 61000-6-7,
      DIN EN 61800-3, DIN EN 61326-3, DIN EN 62061
      Operating altitude 2000m
    • Mechanical data
      Dimension (HxDxW [mm]) SMX31/2 100x115x67,5
      Weight [g] SMX31/2 545
      Mounting   to snap on top-hat rail
      Number of T-Bus SMX31R-4/2 3
      Min. terminal cross-section / AWG   0,2 mm2 / 24
      Max. terminal cross-section / AWG   2,5 mm2 / 12
    • Device interfaces

      Interface Description of interface
      X09 - X14 / X19 - X24 Voltage supply and I/O interface
    • Voltage supply and I/O interface
      X 09
      Pin 1 - 1.11
      2 - 1.12
      Read back contact relay 1
      3 - 2.11
      4 - 2.12
      Read back contact relay 2
      X 10
      Pin 1- 3.11
      2 - 3.12
      Read back contact relay 3
      3 - 4.11
      4 - 4.12
      Read back contact relay 4
      X 11
      Pin 1 - A1.1 Voltage supply device +24 VDC
      2 - A1.2 Voltage supply device +24 VDC output
      3 - A2.1
      4 - A2.2
      Voltage supply device 0 VDC
      X 12
      Pin 1 - IQ01
      2 - IQ02
      Safe digital inputs, outputs pp-switching
      3 - T1
      4 - T2
      Clock outputs
      X 13
      Pin 1 - NC
      2 - NC
      No function
      3 - Y1
      4 - Y2
      Auxiliary outputs
      X 14
      Pin 1 - I01
      2 - I02
      3 - I03
      4 - I04
      Safe digital inputs
      X 19
      Pin 1 - Q1.1
      2 - Q1.2
      Safe relay output 1
      3 - Q2.1
      4 - Q2.2
      Safe relay output 2
      X 20
      Pin 1 - 3.1
      2 - 3.2
      Safe relay output 7
      3 - 4.1
      4 - 4.2
      Safe relay output 8
      X 21
      Pin 1 - IQ03
      2 - IQ04
      3 - IQ05
      4 - IQ06
      Safe digital inputs, outputs pp-switching
      X 23
      Pin 1 - I05
      2 - I06
      3 - I07
      4 - I08
      Safe digital inputs
      X 24
      Pin 1 - I09
      2 - I10
      3 - I11
      4 - I12
      Safe digital inputs
    • Extensions
      Item Description Item-No.
      SMX 31R-4/2 I/O expansion with relay option 2047
    • Accessories
      Item Description Item-No.
      SXxxxx-x Terminal connector, screw terminals (set), encoded for cabling SMX31R-4/2 on request
      SXxxxx-x Terminal connector, spring terminals (set), encoded for cabling SMX31R-4/2 on request
      SX0000-9 T-Bus connector, voltage-carrying (grey) 1015