Woodward 9907-164 Digital Governor | 505 Turbine Controller

Woodward 9907-164 Digital Governor - Advanced Turbine Control Solution

The Woodward 9907-164 Digital Governor represents cutting-edge turbine control technology within the proven 505 platform family. Designed for demanding steam and gas turbine applications, this controller delivers microsecond-level precision in speed regulation, load management, and protective shutdown sequences across industrial power generation facilities.

Core Technical Specifications

• Part Number: 9907-164
• Platform: 505 Digital Governor Series
• Control Architecture: Dual-redundant microprocessor with watchdog monitoring
• Speed Regulation Accuracy: ±0.25% over full load range
• Input Channels: 16 analog (4-20mA, 0-10V), 24 digital (dry contact)
• Output Channels: 8 analog (4-20mA), 16 digital relay outputs
• Operating Temperature: -30°C to +70°C
• Power Requirements: 24 VDC ±10%, 3.5A nominal
• Communication Protocols: Modbus RTU, Ethernet/IP, proprietary Woodward serial
• Display Interface: Integrated LCD with keypad navigation
• Mounting: 19-inch rack mount or panel installation
• Certifications: CE, UL508, CSA C22.2, ATEX Zone 2

Operational Advantages

• Adaptive PID control algorithms automatically tune to turbine dynamics
• Built-in overspeed detection with triple-redundant shutdown logic
• Real-time vibration and temperature monitoring with predictive alerts
• Load-sharing capability for multi-turbine installations up to 32 units
• Field-programmable logic for custom sequencing and interlocks
• Non-volatile memory retains configuration during power loss
• Hot-swappable I/O modules minimize maintenance downtime

Industrial Application Scenarios

Combined Cycle Power Plants: Coordinate gas turbine startup sequences with HRSG steam admission, managing transition between simple and combined cycle modes while maintaining grid frequency stability.

Cogeneration Facilities: Balance electrical load demand against thermal steam requirements in industrial cogeneration systems, optimizing fuel efficiency across varying process loads.

Marine Propulsion: Control main propulsion turbines in LNG carriers and naval vessels, providing precise speed regulation during maneuvering and emergency shutdown protection.

Mechanical Drive Applications: Govern turbines driving compressors, pumps, and generators in oil & gas processing facilities, maintaining constant speed under fluctuating mechanical loads.

Integration & Compatibility

The 9907-164 seamlessly integrates with existing Woodward actuators (EPG, LSG series), MicroNet I/O expansion modules, and SCADA systems via standard industrial protocols. Configuration is performed using Woodward's ToolKit software, enabling parameter adjustment, trending analysis, and firmware updates without process interruption.

Technical Support Questions

Q: Can the 9907-164 replace legacy 2301A controllers?
A: Yes, the 505 platform offers backward compatibility with 2301A wiring harnesses through adapter kits, simplifying retrofit projects while adding modern diagnostic capabilities.

Q: What is the maximum turbine speed this governor can control?
A: The controller supports turbine speeds from 1,000 to 20,000 RPM with configurable overspeed trip points up to 110% of rated speed.

Q: Does this unit support remote monitoring?
A: Yes, Ethernet connectivity enables integration with plant DCS systems, and optional cellular modems allow cloud-based monitoring through Woodward's Compass portal.

Q: What calibration is required during commissioning?
A: Initial setup requires speed sensor calibration, actuator stroke verification, and PID tuning, typically completed within 4-6 hours by trained technicians.

Warranty & Technical Support

Every Woodward 9907-164 Digital Governor includes a comprehensive 12-month manufacturer warranty covering defects in materials and workmanship. Our global support network provides 24/7 technical assistance, on-site commissioning services, and access to certified training programs for maintenance personnel.

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