{"product_id":"ge-vmic-westerm-d20c-wesdac-substation-automation-interface-card","title":"GE VMIC WESTERM D20C WESDAC Substation Automation Interface Card","description":"\u003ch2\u003eGE WESTERM D20C Substation Automation I\/O Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGE WESTERM D20C\u003c\/strong\u003e serves as the primary \u003cstrong\u003eD20C\u003c\/strong\u003e Substation Automation I\/O Module utilized to execute digital and control signal conditioning across D20 Substation Automation Systems platforms. The hardware architecture functions in a two-tier mechanical configuration, separating physical field wiring terminations from data processing logic. This layout allows communication processors to sample status points and drive control relays while maintaining permanent electrical isolation on field wiring blocks.\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\u003eWESTERM D20C\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\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e150 mm x 300 mm x 450 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\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Inputs\u003c\/td\u003e\n\u003ctd\u003e16 Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Outputs\u003c\/td\u003e\n\u003ctd\u003e8 Channels (Momentary or Dual-Function Trip\/Close)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Analog Inputs\u003c\/td\u003e\n\u003ctd\u003e16 Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Analog Outputs\u003c\/td\u003e\n\u003ctd\u003e8 Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Protocols\u003c\/td\u003e\n\u003ctd\u003eModbus, DNP3, IEC 61850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, RoHS Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eSubstation Network Interfacing and I\/O Density Scaling\u003c\/h3\u003e\n\u003cp\u003eThe dual-module design uses a physical division between the WESTERM D20C base assembly and the WESDAC D20C processing module to maintain uninterrupted field wiring pathways. Communication logic embedded within the upper hardware tier handles protocol serialization, converting local discrete and analog registers into standardized telemetry frames like DNP3 and IEC 61850. The backplane bus communication velocity accommodates continuous polling cycles without latency accumulation, allowing the internal processor to manage firmware flash compatibility across varied SCADA integration points while preserving signal accuracy during extreme ambient thermal shifts.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the hardware restrictions when performing a hot-swap replacement on the upper WESDAC processing module?\u003c\/p\u003e\n\u003cp\u003eA: The physical design of the WESTERM D20C base module permits the removal and replacement of the top-tier WESDAC processing board during active system operations. The mechanical guide rails isolate the plug-in connector interface, preventing backplane bus communication faults on the broader D20 network and leaving all terminal screw connections undisturbed.\u003c\/p\u003e\n\u003cp\u003eQ: How do the control outputs behave during an unexpected power interruption or communication timeout?\u003c\/p\u003e\n\u003cp\u003eA: The 8 control outputs switch immediately to a predefined fail-safe state execution configuration upon detection of a communication failure or loss of logic power. This hardware interlocking mechanism blocks accidental trip\/close operations, ensuring that all dual-function interlocks open cleanly to prevent uncommanded actuation loops within the substation switchgear circuits.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeparation of High-Voltage and Low-Voltage Wiring:\u003c\/strong\u003e Route all discrete input sensing lines and output control wiring through separate cable trays inside the enclosure. Maintain physical separation between 115 VAC\/250 VDC control loops and standard low-voltage analog paths to limit capacitive cross-talk and inductive noise injection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN-Rail and Panel Mounting Rigidity:\u003c\/strong\u003e Fasten the panel-mount structural assembly to a vibration-free backplane inside the control cubicle. Secure all mounting hardware to ensure continuous mechanical stability under the mechanical shock conditions typical of high-voltage circuit breaker operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Grounding for Optional Analog Channels:\u003c\/strong\u003e Ground the individual braided shields of all 4-20 mA or voltage analog input cables at a single point on the control panel earth bar. Do not terminate the shield at both ends, as ground potential differences between the field instrument and the module will induce ground loop currents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management in Outdoor Cubicles:\u003c\/strong\u003e Verify that the ambient temperature inside closed outdoor cabinets does not exceed the +70 deg C operating limit. Provide passive convection louvers or active air circulation if solar radiation and internal heat dissipation from adjacent power components threaten to push the internal environment beyond standard limits.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GE Fanuc","offers":[{"title":"Default Title","offer_id":43872523321443,"sku":"WESTERMD20C","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/386_0c95e67a-058c-4db0-8c44-e67ef6518780.jpg?v=1764902825","url":"https:\/\/www.autocontrolglobal.com\/products\/ge-vmic-westerm-d20c-wesdac-substation-automation-interface-card","provider":"AutoControl Global","version":"1.0","type":"link"}