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مقارنة بين نظام Bms ونظام Eib مفيييييييييييييد جدا

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  1. [1]
    mf_118
    mf_118 غير متواجد حالياً

    عضو

    تاريخ التسجيل: Jan 2007
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    مقارنة بين نظام Bms ونظام Eib مفيييييييييييييد جدا

    هنا تجدون مقارنة بين نظام ادارة المباني BMS و نظام التركيب الاوروبي EIB وتلاحظون اوجه الاختلاف بين النظامين واهم المميزات


    11.jpg

    12.jpg

    ABB i-bus EIB Control System
    Control via BMS

    Processor
    Decentralized technology i.e. every device in the system has its own processor and is independent of the other
    Centralized technology with central processor (DDC controllers). In case DDC failures, all controls down the line are lost


    Applications
    Specialized technology for all applications like lighting, dimming, shutter, Room temperature, load management etc.
    Specialized technology restricted to HVAC application

    Application Lighting
    Uses EIB sensors (Intelligent switches, timers, motion sensors) and Intelligent lighting Relay modules
    Uses conventional sensors (switches, motion sensors) and external lighting contactors


    Control Philosophy
    EIB actuators output having relays (control) & contactors (power) as one single unit/output varying from 6Amps up to 20Amps as per the requirements
    Via DDC controlled contactors + related wiring + cabling
    lead to too many complicated wiring.
    In future this will also lead to more failures, hence more preventive maintenance works


    Relay Design, Size
    As the Intelligent Relay modules are compact. Each relay, 16AC3 suitable to switch Resistive, Inductive and Fluorescent loads together with an inrush current carrying capacity of 600 A suitable for switching loads with high switch-on peaks (e.g. fluorescent loads). The contactors should also have a capacitive load rating of at least 200 microfarads
    The Lighting Control panel size is more as it uses external contactors in conjunction with DDC controllers (I/O modules). The contactors are not specially designed for Lighting Loads


    Relay Characteristics
    EIB relays can be with integrated current detection feature. This functionality shall allow for the monitoring of the load current, and operating hours for load management .It shall be possible to set threshold values of the current in order to detect any lamp failures for facilities management
    The external contactors in conjunction with DDC controllers are not specially designed for Lighting Loads


    Fail Safe Feature for Lights
    In case of EIB power supply failure, all lighting relays can be programmed to go to a fail safe position ( either on or Off) for emergency conditions
    No such feature available. BMS uses external control supply for I/O modules and failure of this power supply shall affect the operation of all I/Os connected to the module


    Maintenance & Operating Costs
    The Relay modules and all other devices are maintenance free and doesn’t require any maintenance
    External contactors requires regular maintenance like replacement of coil, contacts etc. Thus increasing the operating costs


    Trouble Shooting
    Reduced wiring means reduced trouble shooting time
    Complex wiring means high trouble shooting time


    Wiring & Installation
    Every device is connected directly to the bus via 2-wire bus cable thus reducing the wiring cost and ease of installation
    As this technology uses conventional switches, sensors and external contactors, this results in complex control and power wiring, hence higher installation times


    Installation Time
    The i-bus® EIB protocol uses only 2 wire communication with easy to connect bus terminations (no lugging crimping required). Reduces installation times
    Requires skilled labor increased installation times



    Flexibility of Configuration


    Every switch sensor has a bus coupler (microprocessor common to all types of sensors) providing flexibility to replace one switch sensor with the other e.g. 1-gang can be easily changed to 3-gang or 5-gang without the use of any additional Inputs
    Replacing 1-gang switch with a 3-gang switch would require additional 2 Inputs


    Equipments Affect
    Fault in one switch or sensor doesn’t affect the other device
    As this technology uses Input modules, failure of an I/O module will affect the entire operation of those I/Os (switches and relays)


    Backup Power Supply
    Power supply Mains Failure backup time 200ms
    No Back up possible. Uses normal power supplies for controls


    Performance & Price
    Lower Price/Performance ratio
    Higher Price/Performance ratio

  2. [2]
    YEHEYA
    YEHEYA غير متواجد حالياً
    عضو


    تاريخ التسجيل: Jun 2009
    المشاركات: 10
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  3. [3]
    khaledaltabib
    khaledaltabib غير متواجد حالياً
    عضو


    تاريخ التسجيل: Aug 2009
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  4. [4]
    احمد زكي محي الدين
    احمد زكي محي الدين غير متواجد حالياً
    عضو فعال
    الصورة الرمزية احمد زكي محي الدين


    تاريخ التسجيل: Jun 2008
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  5. [5]
    khaled lc
    khaled lc غير متواجد حالياً
    جديد


    تاريخ التسجيل: Dec 2013
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