Introduction to WOODWARD 9907-164

The WOODWARD 9907-164 is a microprocessor-based digital governor, serving as a core control component for industrial turbines and turbogenerators. As a key model in the WOODWARD 505 series, it combines adaptive PID control, multi-channel data processing, and integrated safety functions to deliver precise speed and load management for rotating equipment in dynamic operating conditions. Widely used in power generation, oil & gas, and industrial drives, it regulates steam turbines in thermal plants to maintain grid frequency stability, controls gas turbine compressors in pipelines for optimal pressure, and manages turboexpanders in cryogenic systems. Its rugged design features an IP56-rated aluminum housing, resisting humidity, salt spray, and vibrations—ideal for harsh industrial environments. 

9907-164 Technical parameters:

• Product Category: Digital turbine governor (505 series key model)
• Key Capabilities: Precision speed/load control, critical speed bypass, auto start/stop, self-diagnosis
• Compatible Equipment: Steam/gas turbines, turbogenerators, turboexpanders (single/split-range actuators)
• Inputs: 16 contact inputs (4 fixed + 12 programmable); 6×4-20mA analog inputs
• Outputs: 0-10V DC analog signal; drives electro-hydraulic actuators directly
• Control Performance: Speed accuracy ±0.01%; load response <50ms; supports isochronous parallel operation
• User Interface: 30-key keypad; 2-line×24-character display; on-site parameter setup
• Communications: RS-232/RS-422; optional Ethernet; Modbus protocol support
• Power Requirements: 24V DC (nominal); 18-36V DC wide input; 1A typical current
• Operating Conditions: -20°C to +60°C; 95% RH (non-condensing); 10g vibration resistance (5-2000Hz)
• Physical Traits: 355.6×279.4×101.6mm (W×H×D); ~4.13kg; IP56 protection
• Certifications: CE, UL; complies with IEC 60529, ISO 8528-5, IEC 61508 SIL 3

1. WOODWARD 9907-165: 110V DC power variant, tailored for high-voltage industrial control panels
2. WOODWARD 505E: Next-generation governor with OPC UA and enhanced Ethernet for smart factories
3. WOODWARD CPC-II (9907-1200): Electro-hydraulic converter that translates 9907-164 signals to valve movements
4. WOODWARD ProTech 203: Triple-redundant超速保护系统(over speed protection) for turbine safety loops
5. WOODWARD 9907-166: ATEX Zone 2 explosion-proof model for offshore oil platform applications
6. WOODWARD Flex500: Multi-turbine control system integrating 9907-164 logic for plant-wide coordination
7. WOODWARD LinkNet-HT: Distributed I/O extender to expand 9907-164’s monitoring range
8. WOODWARD 2301D-ST: Cost-effective single-valve turbine controller for small-scale steam systems
9. WOODWARD APECS® 4500: Programmable engine controller for CHP systems paired with 9907-164
10. WOODWARD DPG 2200: Generator load-sharing unit for parallel turbogenerator setups
11. WOODWARD 1712 EPG: All-in-one governing system with built-in actuator and 9907-164 control core
12. WOODWARD 9907-167: Low-temperature (-40°C) model for polar and cold-region turbine applications
13. WOODWARD K-Series Actuators: Electric throttle units executing speed commands from 9907-164
14. WOODWARD 5009 TMR: Triple-redundant controller for nuclear and critical power plant turbines
15. WOODWARD 512 EPG: 12V DC compact governor for small turbomachinery and auxiliary systems
16. WOODWARD SPC: Servo valve driver enhancing 9907-164’s control precision for fuel valves