{"product_id":"is200edexg1bbb-general-electric-exciter-de-excitation-control-board","title":"IS200EDEXG1BBB | General Electric | Exciter De-Excitation Control Board","description":"\u003cp\u003eConfigured for emergency generator field energy dissipation in EX2100e excitation systems, the \u003cstrong\u003eGeneral Electric IS200EDEXG1BBB\u003c\/strong\u003e (\u003cstrong\u003eIS200EDEXG1BBB\u003c\/strong\u003e Exciter De-Excitation Control Board) provides direct physical\/electrical execution of SCR firing sequences and conduction state monitoring.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eIS200EDEXG1BBB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGeneral Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States of America (USA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-30 deg C to +65 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Filter\u003c\/td\u003e\n\u003ctd\u003e4 ms hardware filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExcitation Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V dc (nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control and Firmware Integration\u003c\/h3\u003e\n\u003cp\u003eThe IS200EDEXG1BBB utilizes deterministic network communication to facilitate high-speed de-excitation responses. The board architecture supports firmware flash compatibility, enabling precise timing adjustments for SCR firing angles managed through the EMIO and EXTB interfaces. The module provides I\/O density scaling by conditioning status signals from the 41dc contactor or breaker auxiliary contacts. Its control logic supports dual firing commands, ensuring redundant activation of the energy dissipation bridge to maintain system safety. Voltage retention circuits are incorporated to sustain internal monitoring logic during primary power loss events.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: How is the de-excitation sequence initiated on this board?\u003c\/p\u003e\n\u003cp\u003eA: The EMIO board triggers the sequence through the EXTB (Exciter Transfer Board). The EXTB initiates the opening of the 41dc contactors and subsequently relays feedback signals to the SCR firing circuits on the EDEX board to commence energy dissipation.\u003c\/p\u003e\n\u003cp\u003eQ: What is the purpose of the onboard 4 ms hardware filter?\u003c\/p\u003e\n\u003cp\u003eA: The 4 ms hardware filter is used to condition incoming signals, providing a debouncing effect that prevents transient noise or contact chatter from causing premature or erroneous activation of the de-excitation SCR firing circuitry.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface Alignment:\u003c\/strong\u003e Ensure the EDEX board is correctly oriented and seated within the de-excitation module assembly. Verify that all backplane connectors are fully engaged to maintain signal integrity between the EDEX, EXTB, and EMIO.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding:\u003c\/strong\u003e To prevent electromagnetic interference during high-energy dissipation events, ensure that all firing command cables and feedback signal lines are shielded and routed separately from high-power field conductors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Verify that the de-excitation module chassis is bonded to the cabinet frame. This is necessary to provide a low-impedance path for energy discharge currents and to maintain the reference potential for the firing circuitry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContactor Feedback:\u003c\/strong\u003e Confirm the status signals from the 41dc contactors (MDA\/MDB) are correctly wired to the board. The system relies on accurate auxiliary contact feedback to verify breaker opening before energizing the SCR firing circuits.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":52989028204853,"sku":"IS200EDEXG1BBB","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/IS200EDEXG1BBB.png?v=1781166774","url":"https:\/\/www.5gplc.com\/products\/is200edexg1bbb-general-electric-exciter-de-excitation-control-board","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}