{"product_id":"284398-01-3500-series-alarm-and-shutdown-relay-module","title":"284398-01 3500 Series Alarm and Shutdown Relay Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 284398-01\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a critical Relay Output Module within the 3500 Machinery Protection System. This module provides the essential interface for triggering automated alarms and emergency shutdowns based on real-time vibration, thrust, and speed data. It converts software-defined logic into physical contact actions, ensuring immediate protection for high-value turbines, compressors, and generators. We supply this module as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original in Factory Packaging\u003c\/strong\u003e, providing the high-integrity, fail-safe switching required for global industrial safety standards.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 284398-01 utilizes a robust internal architecture with redundant relay paths to prevent undetected failures in the protection loop.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e284398-01\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBently Nevada (Baker Hughes)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3500 Machinery Protection System\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePrimary Function\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eProgrammable Alarm and Shutdown Relay Outputs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRelay Configuration\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTypically 4 Electromechanical Relays (Form A or C)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh Electrical Isolation between Contacts and Backplane\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e–30°C to +65°C (–22°F to +149°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSupplied via 3500 Rack Backplane\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStandard Internal 3500 Rack Slot\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStatus Indicators\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFront-panel LEDs for Relay State and Fault Status\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProgrammable Voting Logic:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 284398-01 supports complex alarm voting (e.g., 1-out-of-2 or 2-out-of-3 logic). This allows engineers to map specific monitoring channels to relay outputs via the 3500 configuration software, preventing nuisance trips while ensuring absolute machine protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFail-Safe Operational Integrity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis module incorporates internal redundancy and continuous self-testing. It monitors its own internal health and reports hardware discrepancies to the 3500 system monitor, ensuring that a relay failure never goes unnoticed in a critical shutdown circuit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh Electrical Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBently Nevada builds the 284398-01 with superior isolation between the relay contacts and the 3500 rack electronics. This protects the sensitive backplane and processor modules from high-voltage surges or electrical noise originating in the field-side shutdown wiring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConfigurable Relay States:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUsers can define relays as either \"Normally Energized\" (Fail-Safe) or \"Normally De-energized\" depending on the plant’s safety philosophy. This flexibility ensures the module integrates seamlessly with diverse DCS and PLC emergency stop architectures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDeterministic Logic Execution:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module executes relay logic independently based on data received across the 3500 backplane. This decentralized processing ensures that shutdown commands occur within milliseconds of an alarm setpoint violation, regardless of the load on the primary communications gateway.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the role of the 284398-01 within a 3500 rack?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt acts as the \"executive\" component of the protection system. While other modules monitor vibration or thrust, the 284398-01 performs the physical action of opening or closing a circuit to alert operators or trip the machine.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I replace a 284398-01 while the rack is powered?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 284398-01 supports hot-swappable replacement. However, you must carefully consider your system’s redundancy and the state of your shutdown circuits before removal to avoid accidental machine trips.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow many relays are available on this specific module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe standard 284398-01 typically provides 4 independent relay outputs. The exact behavior and mapping of these relays are fully configurable through the Bently Nevada 3500 Rack Configuration Software.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module support both Alarm and Danger levels?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAbsolutely. You can map \"Alert\" levels to one set of relays for operator notification and \"Danger\" levels to another set for hard-wired machine shutdowns, providing a tiered response to machinery health issues.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":44083695812707,"sku":"284398-01","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/312._baca2e2f-51ef-4e9d-9f70-893baebf15e2.jpg?v=1774595479","url":"https:\/\/www.autocontrolglobal.com\/products\/284398-01-3500-series-alarm-and-shutdown-relay-module","provider":"AutoControl Global","version":"1.0","type":"link"}