{"product_id":"woodward-8440-2165-speed-protection-module-new-original-stock","title":"Woodward 8440-2165 Speed Protection Module | New \u0026 Original Stock","description":"\u003ch2\u003eWoodward 8440-2165 ProTech-GII Series\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eWoodward 8440-2165\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e8440-2165\u003c\/strong\u003e Speed Protection Module, operates as a dedicated hardware component for safety-critical overspeed protection and turbine synchronization within ProTech-GII and SPM-D network 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\u003e8440-2165\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWoodward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eNot specified (standard chassis mount form factor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e18-32 VDC (Nominal 24 VDC; Dual redundant power terminals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctional Safety\u003c\/td\u003e\n\u003ctd\u003eSIL-2 or SIL-3 capable (configuration dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Input Channels\u003c\/td\u003e\n\u003ctd\u003e3 Independent Inputs (Magnetic Pickups, Active, or Hall-Effect Sensors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e0.5 Hz to 25,000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrip Response Time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 12 ms (Overspeed detection to relay contact transition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoting Logic\u003c\/td\u003e\n\u003ctd\u003e2-out-of-3 (TMR) for overspeed; 1-out-of-2 for standard protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Contacts\u003c\/td\u003e\n\u003ctd\u003eHigh-current Form-C (SPDT) Safety Relays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eRS-485 Modbus RTU and Ethernet Modbus TCP\/IP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Drives \u0026amp; Governors Properties\u003c\/h3\u003e\n\u003cp\u003eThe Woodward 8440-2165 integrates precise thermal heat sink dissipation profiles to ensure logic stability under extreme computing loads across its three speed channels. Configured specifically for steam, gas, and hydro turbine governing systems, the module maintains an ultra-low latency actuator loop feedback response, converting overspeed conditions to isolated relay transitions in less than 12 ms. The unit runs deterministic internal voting matrices, continuously cross-referencing input pulse frequencies across a spectrum of 0.5 Hz to 25,000 Hz to execute hardware shutdown commands without processing delays.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is the Triple Modular Redundant (TMR) safety architecture executed internally?\u003c\/p\u003e\n\u003cp\u003eA: The module evaluates speed input data simultaneously through three independent hardware channels. The embedded logic utilizes a 2-out-of-3 (2oo3) voting mechanism to validate an actual overspeed trip condition, preventing a single sensor fault or localized signal drop from triggering an accidental turbine shutdown.\u003c\/p\u003e\n\u003cp\u003eQ: What power interface provisions exist for high-reliability applications?\u003c\/p\u003e\n\u003cp\u003eA: The hardware features dual redundant input power terminals accepting an 18-32 VDC operating voltage. If the primary 24 VDC feeder line drops voltage, the module switches immediately to the secondary power loop without interrupting internal processing cycles or tripping safety relays.\u003c\/p\u003e\n\u003cp\u003eQ: Can this protection module interface directly with third-party distributed control networks?\u003c\/p\u003e\n\u003cp\u003eA: Yes, remote monitoring data can be streamed via the integrated RS-485 Modbus RTU serial link or through the native Ethernet Modbus TCP\/IP connection, transmitting diagnostic errors, trip states, and live RPM telemetry to supervisory systems.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Assembly Alignment:\u003c\/strong\u003e Mount the IP20 enclosure on a secure plane inside a clean, dry control panel layout. Tighten all grounding straps directly to the sub-panel metal structure to establish low-resistance electrical bonding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Sensor Circuit Isolation:\u003c\/strong\u003e Use separate twisted-pair, double-shielded conductors for each of the three speed input channels. Ground the shields at the control enclosure panel terminal strip only, keeping sensor wiring separate from high-current AC lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay Output Termination:\u003c\/strong\u003e Wire the high-current Form-C safety relays using appropriate wire gauges rated for the connected trip-coil current draw. Verify that external surge suppression diodes are installed across inductive DC actuator coils to protect the module's physical contacts from arcing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService Interface Configuration:\u003c\/strong\u003e Use the front-panel display matrix or the dedicated Woodward configuration utility via the service port to match input sensor parameters to the target pulse-per-revolution setup before activating the machine trip relays.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":42870827974746,"sku":"8440-2165","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/180_0edf8796-d783-486c-bb02-2cbef98dffa5.jpg?v=1772760394","url":"https:\/\/www.spareoil.com\/products\/woodward-8440-2165-speed-protection-module-new-original-stock","provider":"SpareOil Automation","version":"1.0","type":"link"}