{"product_id":"woodward-9905-867-peak-150-digital-control-for-steam-turbines","title":"Woodward 9905-867 Peak 150 Digital Control for Steam Turbines","description":"\u003cp\u003eThe \u003cstrong\u003eWoodward 9905-867\u003c\/strong\u003e is a steam turbine digital control designed for single-valve or single-valve rack steam turbines. Equipped with a 16-bit, 12MHz microprocessor, this microprocessor-based system provides speed control, dual dynamics, and integrated monitoring functions. The unit accepts redundant magnetic pickup speed inputs and features an analog input dedicated to remote speed setting or process control integration. Enclosed in a NEMA 4X rated housing, the \u003cstrong\u003e9905-867\u003c\/strong\u003e provides field configuration capability for mechanical drive applications including pumps, fans, blowers, and compressors.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in 16-bit, 12MHz microprocessor running dual speed control dynamics.\u003c\/li\u003e\n\u003cli\u003eSupports single-valve or single-valve rack steam turbine control configurations.\u003c\/li\u003e\n\u003cli\u003eAccommodates dual magnetic pickup inputs for redundant speed sensing.\u003c\/li\u003e\n\u003cli\u003eFeatures Modbus serial communication capability over RS-232, RS-422, or RS-485 interfaces.\u003c\/li\u003e\n\u003cli\u003eProvides isolated 4-20mA or 1-5Vdc remote speed setpoint analog input.\u003c\/li\u003e\n\u003cli\u003eIncludes four internal relays, featuring dedicated trip and alarm outputs plus two configurable relays.\u003c\/li\u003e\n\u003cli\u003eIntegrated front-panel control interface featuring speed display, status LEDs, raise\/lower controls, and an emergency trip button.\u003c\/li\u003e\n\u003cli\u003eFormed with a NEMA 4X rated enclosure designed for dust-tight, water-tight, and corrosive environment mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSteam turbine governing systems\u003c\/li\u003e\n\u003cli\u003eSingle-valve steam turbine control\u003c\/li\u003e\n\u003cli\u003eSingle-valve rack mechanical drives\u003c\/li\u003e\n\u003cli\u003eIndustrial pump drives\u003c\/li\u003e\n\u003cli\u003eIndustrial fan and blower drives\u003c\/li\u003e\n\u003cli\u003eCompressor drive control systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical 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\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWoodward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePeak 150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003e9905-867\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProcessor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16-bit, 12MHz microprocessor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90-150VDC or 88-132VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e47-63Hz (AC operation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e38W maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNEMA 4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunications Protocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModbus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Hardware\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS-232 \/ RS-422 \/ RS-485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpeed Sensor Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 Magnetic Pickups (1Vrms min, 200Hz to 15kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Remote Speed Input (4-20mA or 1-5Vdc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiscrete Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 contact inputs (powered internally by 24Vdc or externally by 5-28Vdc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActuator Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProgrammed 0-200mA (60 ohm max load) or 0-20mA \/ 4-20mA (450 ohm max load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 outputs (Speed Readout, Configurable Output), 4-20mA or 0-1mA (600 ohm max load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Contacts\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 Hermetically-Sealed Relays (2A @ 28Vdc res, 0.75A @ 28Vdc ind, 0.3A @ 115Vac res)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-25 to +60 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e483 mm x 305 mm x 102 mm (19 in x 12 in x 4 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTechnical Manual\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85565\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal \/ Pin\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1 - 3\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePower Supply Input (Chassis Ground, +, -)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e4 - 5\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRelay Output #1 (Trip Relay)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e6 - 7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRelay Output #2 (Alarm Relay)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e8 - 9\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRelay Output #3 (Configurable Relay #1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e10 - 11\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRelay Output #4 (Configurable Relay #2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e12\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiscrete Input Common\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e13\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiscrete Input #1 (Lower Speed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e14\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiscrete Input #2 (Raise Speed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e15\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiscrete Input #3 (External Trip)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e16\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiscrete Input #4 (Start)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e17\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiscrete Input #5 (Reset)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e18\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiscrete Input #6 (Idle \/ Min Gov)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e19\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiscrete Input #7 (Remote Speed Enable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e20\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiscrete Input #8 (Hi Dyn Select \/ Overspeed Test)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e21 - 32\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModbus Communications Port (+5Vdc, Term Res, DTR, RXD, TXD, 422\/485 Signals, Shield)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e33 - 35\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAnalog Output #1 (Speed Readout: +, -, Shield)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e36 - 38\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eActuator Output (+, -, Shield)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e39 - 41\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAnalog Output #2 (Configurable Readout: +, -, Shield)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e42 - 44\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSpeed Sensor Input #1 (Magnetic Pickup #1: +, -, Shield)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e45 - 47\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSpeed Sensor Input #2 (Magnetic Pickup #2: +, -, Shield)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e48 - 50\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAnalog Input #1 (Remote Speed Input: +, -, Shield)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting\u003c\/strong\u003e: Vertically mount the enclosure on a wall or 19-inch (483 mm) rack using the two side flanges. Leave adequate clearance for opening the front hinged door and accessing wiring entries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Routing\u003c\/strong\u003e: Route low-current signal wiring through the large bottom wiring port and high-current lines through the small bottom wiring port.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding\u003c\/strong\u003e: Use twisted-pair shielded cable for MPU, actuator, and analog input connections. Terminate cable shields only at the control terminal block. Do not ground signal shields at the external field device or outside the control enclosure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding\u003c\/strong\u003e: Wire external system ground directly to Terminal 1 (Chassis Ground).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply Wiring\u003c\/strong\u003e: Run power leads directly from the power source using 3 mm² (12 AWG) or larger wire fully enclosed in conduit. Do not power external field devices using common leads shared with the control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiscrete Inputs\u003c\/strong\u003e: Install a jumper or external shutdown switch across Discrete Input #3 (Terminals 12 \u0026amp; 15) to maintain the external trip circuit. Configure Jumper 15 for internal 24Vdc supply or Jumper 16 for external 5-28Vdc supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCSA Listed\u003c\/strong\u003e: Class I, Division 2, Groups A, B, C, \u0026amp; D, T4 at 60 degC Ambient (Canada and United States, CSA Certificate Number 2474728).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":53648875815275,"sku":"9905-867","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/9905-867.jpg?v=1785645606","url":"https:\/\/www.plcprotech.com\/uz\/products\/woodward-9905-867-peak-150-digital-control-for-steam-turbines","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}