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    ProSafe-RS
        发布时间: 2021-09-16 10:28    
    ProSafe-RS





    GENERAL


    This GS describes the hardware specifications of the analog I/O modules that can be mounted on the safety node


    unit (SNB10D) and the safety control unit (SSC10 or SSC50).


    STANDARD SPECIFICATIONS


    Current Input Module


    This module inputs 4 to 20 mA signals from the field.


    The SAI143 can be made dual redundant.



    *1: No Zener barriers can be connected to this module. An isolation barrier should be used when an intrinsic safety instrument-

    ed system is used.

    *2:  500 V AC when dedicated signal cable is used.




    Voltage Input Module


    This module inputs 1 to 5 V/1 to 10 V signals from the field.


    The SAV144 can be made dual redundant.



    *1:  500 V AC when dedicated signal cable is used.




    Current Output Module


    This module outputs 4 to 20 mA signals to the field.


    The SAI533 can be made dual redundant.






    GENERAL


    This GS provides the hardware specifications of the digital I/O modules that can be installed in the Safety Node Unit


    (SNB10D) and Safety Control Units (SSC10 and SSC50).


    STANDARD SPECIFICATIONS


    Input Module


    Input modules accept a contact signal from the field. SDV144 can be made dual-redundant.




    If SDV144 field wiring diagnostic functions are used, the following diagnostic elements should be installed for individu-


    al channels in the vicinity of the field equipment:


    • SCB100 (for defective open circuit detection while accepting off signals) (*1)


    • SCB110 (for defective short-circuit detection while accepting on signals) (*2)


    *1:  Input signals are normally off while in normal operation.


    *2:  Input signals are normally on while in normal operation.




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