Woodward 9907-163 505 Digital Governor Turbine Control
Delivery time 3 days
Product origin New/used
Email plcru@foxmail.com
Mobile/wechat /WhatsApp +86 18185397189
Woodward 9907-163 505 Digital Governor Turbine Control1. Basic Product Identific
Woodward 9907-163 505 Digital Governor Turbine Control
Woodward 9907-163 505 Digital Governor Turbine Control
1. Basic Product Identification
Full part number: 9907-163Manufacturer: WoodwardProduct series: Classic 505 digital turbine governor controllerProduct positioning: Single/dual actuator steam turbine dedicated digital speed & load governor, suitable for extraction, condensing, back-pressure steam turbine and small turbogenerator sets, also compatible with industrial expander unitsHardware revision mainstream version: Rev L, Rev MSupport configuration software: 505View, OpView for parameter setting, trend monitoring and offline firmware upgradeProduct classification: Panel mount industrial turbine control unit, Class I Div 2 hazardous area approved model
2. Core Control Architecture & Operating Modes
Built-in 32-bit high-speed microprocessor, independent multi-loop PID control logic, core control logic adopts low signal selection LSS algorithm; three control channels including speed/load PID, auxiliary PID and valve limiter jointly participate in valve output calculationWoodwardStandard operating control modes: Isochronous constant speed mode, droop load sharing mode, automatic generator synchronization control, cascade pressure closed-loop control, extraction pressure limiting, inlet pressure limiting, manual valve position local controlIntegrated full automatic turbine start-stop sequence logic, with programmable warm-up ramp rate, acceleration ramp, speed hold stage and overspeed trip interlock logic; supports remote start/stop command receiving via hardwire or communication busPID adjustable parameter range: Proportional band 0.1%–1000%, integral time 0.01–100 seconds, derivative time 0–25 seconds, independent parameter setting for each control loop
3. Speed Sensing & Analog Input Hardware
Dual independent speed pickup input channels, compatible with magnetic MPU passive speed probe and active Hall speed sensor; frequency acquisition range 0.5 Hz–25000 Hz, matching turbine rotational speed up to 15000 RPMAnalog input resources: Four channels configurable 4–20mA analog signal input for pressure, temperature, power feedback; optional dual RTD or thermocouple temperature acquisition channels for bearing and exhaust temperature monitoringDiscrete digital input points: Eight 24VDC isolated digital input terminals, used for start permission, emergency shutdown, remote mode switch, fault interlock feedback and limit switch signal collectionAll field input circuits adopt surge suppression and reverse polarity protection, signal isolation design to eliminate ground loop interference in power plant and engine room environments
4. Actuator & Signal Output Specifications
Dual independent actuator control outputs, signal type configurable 4–20mA or 0–200mA, with built-in valve position linearization correction curve; the second actuator output can be switched to analog monitoring output if split-range valve control is not requiredWoodwardSix channels 4–20mA analog monitoring outputs, for real-time transmission of speed, load, valve position, pressure and other operating parameters to DCS, local recorder and field metersEight Form-C dry contact relay outputs, two dedicated fixed trip/alarm relays for overspeed shutdown and general fault alarm, the remaining six relays fully programmable for running status, warning signals, auxiliary equipment interlock control; relay contact load capacity 5A@250VAC or 5A@30VDC
5. Communication Interface Configuration
Front panel RS232 service port, used for local PC connection, parameter upload/download, real-time data debugging and firmware upgradeRear panel isolated RS485 bus port, support Modbus RTU and Modbus ASCII dual protocols, can realize two-way data interaction with plant DCS system, PLC and remote monitoring platformOptional extended communication module supports Modbus TCP Ethernet communication and Woodward proprietary CANopen bus for multi-governor interconnection and load balance coordinationAll serial communication channels support independent baud rate configuration from 300bps to 115200bps, with communication fault self-diagnosis and offline recording function
6. Electrical Power Supply Parameters
Nominal rated operating voltage: 24 V DCAllowable wide input voltage range: 18 V DC to 32 V DC, adapt to power plant DC power supply fluctuationBuilt-in power supply anti-surge, reverse connection protection and undervoltage fault detection circuit; power loss signal can be output via relay contact for system alarmNo redundant power supply inside single unit; redundant turbine control system needs two sets of 9907-163 controllers plus external switching logic to realize hot backup operation
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