9907-162 Woodward Turbine Speed Controller 24VDC IP30
Manufacturer: Woodward
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Part Number: 8200-507
Condition：New with Original Package
Product Type: Steam Turbine Governors
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The Woodward 9907-162 serves as a microprocessor-based governor designed to control single-actuator steam turbines. As a core component of the legendary 505 series, this unit manages turbine speed, load, and system pressure with industrial-grade precision. It operates as a standalone controller, eliminating the need for external PLC logic for standard turbine startup and protection sequences. We provide this unit as 100% Brand New in original packaging to ensure maximum field reliability.
Technical Specifications
This controller integrates high-speed processing with rugged I/O to handle demanding industrial environments.
| Parameter | Details |
| Manufacturer | Woodward, Inc. |
| Model | 9907-162 (505 Series) |
| Power Input | 18–32 VDC (24 VDC Nominal) |
| Power Consumption | Approximately 50 W |
| Discrete Inputs | 16 Contact Inputs |
| Discrete Outputs | 8 Relay Outputs |
| Analog Inputs | 6 Configurable (4–20 mA) |
| Analog Outputs | 6 Configurable (4–20 mA) |
| Speed Signals | 2 Magnetic Pickup (MPU) or Proximity Probes |
| Enclosure Rating | IP30 (Protected for Control Room Mounting) |
| Operating Temp | -25 to +65 °C |
Engineering Advantages
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Field-Configurable Software: Engineers program the 9907-162 directly through the front-panel HMI. You do not need specialized laptop software for standard PID tuning or startup curve adjustments, reducing commissioning time.
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Critical Speed Avoidance: The controller identifies up to two critical speed ranges. It automatically accelerates the turbine through these zones to prevent resonance-induced mechanical damage.
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Dual-Speed Sensing: High-speed MPU inputs provide redundant speed monitoring. If one signal fails, the controller switches instantly to the backup, preventing nuisance trips during power generation.
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Integrated Extraction Control: Unlike basic governors, the 505 series manages complex extraction parameters to maintain process steam headers while simultaneously balancing electrical load.
Installation & Application Notes
The 9907-162 thrives in Power Generation, Chemical Refineries, and Paper Mills.
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Mounting: Ensure the unit resides within a NEMA 4 or 4X enclosure if operating in wash-down or outdoor environments, as the native IP30 rating protects only against solid objects.
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Shielding: Always use twisted-pair, shielded cabling for MPU and analog signals to eliminate EMI (Electromagnetic Interference) from nearby high-voltage motor starters.
FAQs
Q: Can the 9907-162 replace older 505 models like the 9905 series?
A: Yes. The 9907-162 functions as a direct functional upgrade. While the mounting footprint remains largely compatible, you should verify current draw and I/O terminal assignments against your original wiring diagram, as the 9907 series offers enhanced processing speed.
Q: Does this unit support Modbus communications?
A: Absolutely. The controller features RS-232, RS-422, and RS-485 ports. It supports Modbus RTU protocols, allowing your Distributed Control System (DCS) to monitor turbine RPM, valve position, and alarm status in real-time.
Q: How does the unit handle a "Loss of Speed" signal?
A: The 9907-162 executes an immediate emergency shutdown (Trip) if it detects a total loss of speed sensing to prevent a turbine overspeed condition. You can configure the specific sensitivity and debounce timers within the "Service Mode" menu.