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1747-L552

1747-L552

1747-L552模块,1747-L552产品重量8点监控数字输出模块专为最关键的应用而设计,监控数字输出(SDO)模块满足系统需求其输出保持在单一状态延长时间(在某些情况下应用程序,多年)。SDO模块从接收输出信号三个处理器中每一个的主处理器频道。每组三个信号为然后由完全容错的四重输出开关,其元件为机械功率继电器,这样就通过了一个表决输出信号至现场终端。每个SDO模块都有电压和电流环回电路与17...

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1747-L552

    1747-L552模块,1747-L552产品重量

    8点监控数字输出模块

    专为最关键的应用而设计,监控数字输出(SDO)

    模块满足系统需求其输出保持在单一状态

    延长时间(在某些情况下应用程序,多年)。SDO

    模块从接收输出信号

    三个处理器中每一个的主处理器频道。每组三个信号为

    然后由完全容错的四重输出开关,其元件为机械功率继电器,

    1747-L552 (1).jpg

    这样就通过了一个表决输出信号至现场终端。

    每个SDO模块都有电压和电流环回电路与

    1747-L552模块•断电时的短路负载状态

    未能检测到任何输出点使电源报警通电

    指示信号未能检测到存在负载报警指示灯通电。当可选辅助设备

    使用电源,短路负载可以检测到关闭状态。(本型号上未提供功能3611E,交流模块。)

    所有SDO模块都支持热备盘功能,它们需要单独的

    外部终端面板(ETP)Tricon背板的电缆接口。

    复杂的在线诊断验证每个输出的操作开关、励磁电路和负载压力。此设计提供

    完全故障覆盖,无需需要影响输出信号。

    这些模块被称为“受监控的”因为故障覆盖范围扩展到

    包括潜在的现场问题。在里面

    换言之,现场电路由SDO模块进行超级监控,以便

    可以检测到以下现场故障:

    •断电或保险丝熔断

    •打开或丢失负载

    •导致负载的磁场短路错误通电

    8-Point Supervised Digital
    Output Modules
    Designed for the most critical applica
    tions, Supervised Digital Output (SDO)
    modules meet the needs of systems
    whose outputs remain in a single state
    for extended periods of time (in some
    applications, for years). An SDO
    module receives output signals from
    the Main Processors on each of three
    channels. Each set of three signals is
    then voted upon by a fully fault-tolerant
    quadruplicated output switch whose
    elements are mechanical power relays,
    so that one voted output signal is passed
    to the field termination.
    Each SDO module has voltage and
    current loopback circuitry coupled with
    • A shorted load in the de-energized
    state
    Failure to detect field voltage on any
    output point energizes the power alarm
    indicator. Failure to detect the presence
    of a load energizes the load alarm indi
    cator. When an optional secondary
    power supply is used, shorted loads in
    the Off state can be detected. (This
    feature is not provided on Model
    3611E, an AC module.)
    All SDO modules support hot-spare
    capability, and they require separate
    external termination panels (ETP) with
    a cable interface to the Tricon back
    plane.
    sophisticated online diagnostics that
    verify the operation of each output
    switch, the field circuit and the pres
    ence of a load. This design provides
    complete fault coverage without the
    need to influence the output signal.
    The modules are called “supervised”
    because fault coverage is extended to
    include potential field problems. In
    other words, the field circuit is super
    vised by the SDO module so that the
    following field faults can be detected:
    • Loss of power or blown fuse
    • Open or missing load
    • A field short resulting in the load
    being energized in error


    品牌:A-B

    型号:1747-L552

    产地:美国

    质保:365天

    成色:全新/二手

    发货方式:快递发货


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