{"product_id":"9905-867-woodward-peak-150-controller-new-original-stock","title":"9905-867 Woodward Peak 150 Controller | New \u0026 Original Stock","description":"\u003ch2\u003eWoodward 9905-867 Peak 150 Digital Steam Turbine Controller\u003c\/h2\u003e\n\u003cp\u003eConfigured for precision speed regulation and process control of small to medium-sized industrial steam turbines, the \u003cstrong\u003eWoodward 9905-867\u003c\/strong\u003e (\u003cstrong\u003ePeak 150\u003c\/strong\u003e Digital Control Module) provides direct physical\/electrical execution.\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\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9905-867 (Peak 150 Digital Control Package)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWoodward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.54 kg (10.00 lbs gross \/ Net Weight: Approx. 2.5 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300 mm x 200 mm x 80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to 70 deg C (-40 deg F to 158 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-55 deg C to 105 deg C (-67 deg F to 221 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e95% at 50 deg C, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120 VAC \/ VDC nominal system baseline (Alternate low-range variant: 18 to 32 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeed Input Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 to 20,000 Hz frequency range via Magnetic Pickup (MPU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActuator Drive\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePulse-Width Modulation (PWM) or analog current output signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSerial Communication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS-485 Modbus RTU protocol interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRugged metal housing, panel-mounted NEMA 4X rated frontal boundary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eActuator Loop Feedback Response \u0026amp; Dynamic Regulation\u003c\/h3\u003e\n\u003cp\u003eThe controller houses a specialized processor framework optimized for steam turbine dynamics, processing dual speed frequency signals via a magnetic pickup (MPU) across a 1 to 20,000 Hz spectrum. The internal core processes speed derivatives and translates PID errors into explicit actuator drive outputs—delivering either high-frequency PWM or dedicated analog control currents directly to the electro-hydraulic or proportional steam governor valves.\u003c\/p\u003e\n\u003cp\u003eThis configuration drives an internal actuator loop feedback response loop that balances critical steam parameters, managing critical speed acceleration limits and warm-up timelines. By evaluating real-time frequency deviations alongside remote analog speed references, the hardware executes tight synchronization and speed governing profiles, maintaining turbine shaft equilibrium through abrupt steam header pressure fluctuations.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 9905-867 allow live physical termination extraction while the turbine throttle valve is active?\u003c\/strong\u003e \u003cstrong\u003eA: No.\u003c\/strong\u003e Removing power blocks or disconnecting active MPU feedback terminals during operation drops the internal actuator loop drive current immediately. This loss of signal forces the main steam governor valve to trip shut, initiating an emergency turbine shutdown sequence.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the NEMA 4X housing configuration influence field enclosure deployment?\u003c\/strong\u003e \u003cstrong\u003eA: The faceplate assembly is built to NEMA 4X standards\u003c\/strong\u003e, ensuring robust resistance against moisture ingress, dust penetration, and atmospheric corrosion. This allows direct installation on local turbine panel frames, provided the rear termination chassis is housed inside an appropriately rated enclosure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the behavior of the speed control circuitry upon experiencing an MPU sensor failure?\u003c\/strong\u003e \u003cstrong\u003eA: The system executes immediate fault diagnostics.\u003c\/strong\u003e If the incoming MPU signal drops below the minimum 1 Hz threshold while the unit registers an active run command, the logic triggers an MPU failure alarm flag and commands the actuator output to an instant zero-current state to close the steam valves.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePanel Grounding Integrity:\u003c\/strong\u003e Secure the metal chassis to a flat, rigid sub-panel inside the master enclosure. Ensure the mechanical connection cuts through any non-conductive paint coatings to establish direct, low-impedance metal-to-metal contact with the cabinet earth ground bus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic Pickup Wiring Shielding:\u003c\/strong\u003e Use high-grade shielded twisted-pair (STP) wiring for all MPU connections. Terminate the outer copper shield exclusively at the control chassis end, ensuring it is isolated at the physical sensor casing to block ground loop current induction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActuator Loop Signal Isolation:\u003c\/strong\u003e Route the actuator drive wires through separate low-voltage conduit channels. Keep these signal lines physically independent of the heavy 120 VAC\/VDC power supply conductors and AC breaker trip lines to maintain high signal-to-noise ratios.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":43475279118426,"sku":"9905-867","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/314._a65c7149-f0fa-4722-948f-626cfe06a16a.jpg?v=1781061128","url":"https:\/\/www.spareoil.com\/products\/9905-867-woodward-peak-150-controller-new-original-stock","provider":"SpareOil Automation","version":"1.0","type":"link"}