{"product_id":"820-0154-wesdac-d20-s-ge-substation-status-input-module820-0154-ge-substation-status-input-module","title":"820-0154 WESDAC D20 S GE Substation Status Input Module","description":"\u003ch2\u003eGE 820-0154 WESDAC D20 S Substation Automation System\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGE 820-0154 WESDAC D20 S\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e820-0154\u003c\/strong\u003e Digital Status Input Module, operates as a dedicated hardware component for digital signal gathering and status input processing within D20 Substation Automation System platforms.\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\u003e820-0154 WESDAC D20 S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States (USA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.55 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e100 mm x 80 mm x 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eSustained via interconnected D20 controller chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Capacity\u003c\/td\u003e\n\u003ctd\u003e64 digital inputs (arranged in 8 groups of 8 channels)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Threshold\u003c\/td\u003e\n\u003ctd\u003e12 VDC and higher input levels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Execution\u003c\/td\u003e\n\u003ctd\u003eConfigured for negative-ground field systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eGroup-to-group galvanic isolation with independent common returns\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTermination Type\u003c\/td\u003e\n\u003ctd\u003eCompression-type terminals on the bottom module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control and Drive Technical Attributes\u003c\/h3\u003e\n\u003cp\u003eThe input circuitry translates discrete field transitions directly into time-stamped status registers while aligning with internal backplane bus communication velocity parameters. To maintain high throughput during multi-channel state changes and heavy I\/O density scaling configurations, the firmware structure uses synchronized filtering algorithms matching specific firmware flash compatibility baselines. The processed data is routed over deterministic networks via standard protocol layers, preventing transmission jitter across the supervisory SCADA network.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the module handle high electrical transients common in substation environments without causing firmware flash compatibility faults?\u003c\/p\u003e\n\u003cp\u003eA: The 64 inputs are segmented into 8 isolated groups of 8 channels, utilizing dedicated galvanic isolation barriers on each group to prevent common-mode voltage surges from passing into the logic core or altering the backplane bus communication velocity channels.\u003c\/p\u003e\n\u003cp\u003eQ: Is hot-swap insertion supported for the 820-0154 module on an active D20 backplane network?\u003c\/p\u003e\n\u003cp\u003eA: No, field power and chassis logic power must be completely disconnected prior to physical extraction or insertion to protect the compression-type terminal tracks and processor interfaces from electrical damage.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Terminal Torque:\u003c\/strong\u003e Insert stripped field conductors into the bottom module compression terminals. Secure the screws to standard industrial torque parameters to ensure structural balance and stable contact resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding for Negative-Ground Systems:\u003c\/strong\u003e Connect the common return lines of each input group strictly in accordance with negative-ground substation electrical maps. Verify low-impedance bonding back to the master station ground busbar.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Wire Conduit Separation:\u003c\/strong\u003e Route low-voltage 12 VDC discrete status signal lines through physical conduits separated from high-voltage AC breaker control lines to eliminate capacitive coupling and cross-talk.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GE Fanuc","offers":[{"title":"Default Title","offer_id":43872370163811,"sku":"820-0154 WESDAC D20 S","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/376_cccfbf56-c3f0-4c8c-853c-8b0727e37cb5.jpg?v=1764898023","url":"https:\/\/www.autocontrolglobal.com\/products\/820-0154-wesdac-d20-s-ge-substation-status-input-module820-0154-ge-substation-status-input-module","provider":"AutoControl Global","version":"1.0","type":"link"}