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Phone：+86 17062388866Description
The Woodward 9907-164 is a high-reliability Digital I/O Expansion Module designed for the ProAct Digital Control System, providing critical interface capabilities for turbine and engine management in demanding industrial environments. This module enables seamless integration of additional discrete inputs/outputs with Woodward’s flagship ProAct controllers, extending system flexibility for complex control strategies. Engineered to operate in extreme conditions (–40°C to +85°C), the 9907-164 features galvanic isolation, surge protection, and MIL-spec connectors to ensure signal integrity in high-vibration settings like power generation plants or offshore platforms. Its real-time diagnostics and hot-swappable design minimize downtime during maintenance or system reconfiguration, making it indispensable for gas turbine control, compressor stations, and marine propulsion systems where operational continuity is non-negotiable.
As part of Woodward’s ProAct ecosystem, the 9907-164 communicates via high-speed deterministic buses (e.g., ProAct Bus) with the main controller (9905-XXX series), ensuring synchronized execution of safety-critical functions. The module supports both sinking/sourcing configurations and includes programmable filtering for noise immunity in electrically noisy environments. With its ruggedized aluminum housing and conformal-coated PCB, the Woodward 9907-164 delivers mission-ready performance for industrial control applications requiring SIL 2 / IEC 61508 compliance.
WOODWARD 9907-164
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 9907-164 |
| Manufacturer | Woodward |
| Product Type | Digital I/O Expansion Module |
| Input Channels | 16x Isolated Discrete (24V DC) |
| Output Channels | 16x Relay (5A @ 30V DC / 250V AC) |
| Input Voltage Range | 18–32V DC (Sink/Source) |
| Isolation Voltage | 1,500V AC (Channel-to-Channel/Bus) |
| Response Time | < 2> |
| Communication Interface | ProAct Bus (Deterministic) |
| Connector Type | MIL-DTL-38999 Series III |
| Operating Temperature | –40°C to +85°C (–40°F to +185°F) |
| Enclosure Rating | IP20 (DIN Rail Mount) |
| Dimensions | 150 x 110 x 70 mm (W×H×D) |
| Certifications | UL 508, CE, IEC 60068-2 (Vibration/Shock) |
Main Features and Advantages
Robust Signal Integrity: The Woodward 9907-164 features 1.5kV channel-to-channel isolation and TVS diode protection, eliminating ground loops and suppressing transients up to 4kV. This ensures reliable operation in electrically harsh environments like switchyards or drilling rigs.
Hot-Swap Capability: Modules can be replaced during operation without system shutdown. The ProAct Bus automatically reconfigures the 9907-164 upon reinsertion, reducing maintenance windows by 70% in critical turbine control applications.
Advanced Diagnostics: Embedded health monitoring reports open-wire conditions, short circuits, and relay weld status to the ProAct controller. Predictive analytics flag degradation before failure – critical for safety systems in LNG compressor stations.
Flexible Configuration: Software-configurable inputs (PNP/NPN) and outputs (pulse, latching, or continuous) via Woodward ToolKit™. Supports custom filter settings (0.1–100ms) for noise rejection in EMI-intensive environments.
Application Field
The Woodward 9907-164 is deployed in mission-critical turbomachinery control across energy and industrial sectors:
Power Generation: Manages fuel valve sequencing, ignition commands, and permissives in gas turbines (30–500 MW). Solves synchronization challenges during grid black-start events.
Oil & Gas: Controls emergency shutdown (ESD) systems for compressor stations, integrating flame detection and vent valve commands with SIL 2 compliance.
Marine Propulsion: Interfaces with engine governors and thrusters on LNG carriers, leveraging MIL-spec vibration resistance (IEC 60068-2-6).
Industrial Processes: Provides redundant I/O for steam turbine overspeed protection in paper mills and chemical plants, ensuring ASME compliance.
Related Products
9905-1171: ProAct Main Controller – Central processor for 9907-164 I/O expansion.
9907-167: Successor to 9907-164 with Ethernet/IP support – Enhanced diagnostics.
9907-121: Analog I/O Module – Adds 8x AI/4x AO for temperature/pressure signals.
8273-1050: DIN Rail Power Supply – 24V DC source for 9907-164 logic power.
5440-258: Termination Panel – Simplifies wiring for ProAct I/O modules.
Woodward ToolKit™: Configuration software for programming 9907-164 parameters.
9907-164-KIT: Retrofit kit – Includes mounting hardware/cables for legacy upgrades.
WOODWARD 9907-164
Installation and Maintenance
Pre-installation preparation: Verify DIN rail (EN 50022) strength and grounding (<1>9907-164 node address via DIP switches. Use shielded twisted-pair cables for all I/O signals, grounded at one end.
Maintenance recommendations: Biannual inspection of relay contacts for carbon buildup. Monitor channel error counts via ToolKit™ software; >5 errors/hr indicates EMI issues. Replace every 8 years or 500k actuations (whichever first). Always maintain ESD precautions during handling.
