Description
Product Overview
The Woodward 2301A 9907-018 is a precision digital speed control system designed for industrial turbines, engines, and rotating machinery. As part of Woodward’s legendary 2301 series, this standalone controller combines decades of proven mechanical governing experience with modern digital control technology. The 2301A 9907-018 provides reliable speed regulation for critical applications where precise RPM control directly impacts process quality and equipment safety. Its robust design features all-metal construction with MIL-SPEC connectors, capable of withstanding extreme vibration (up to 15G) and temperature fluctuations (-40°C to +85°C). The unit’s advanced control algorithms deliver ±0.25% speed regulation accuracy, with configurable droop settings for load-sharing applications. Whether installed on gas turbines, steam turbines, or diesel generators, the Woodward 2301A 9907-018 maintains its reputation as the industry benchmark for mechanical-hydraulic control system upgrades and new installations requiring uncompromising reliability.
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 2301A 9907-018 |
| Manufacturer | Woodward |
| Product Type | Digital Speed Controller |
| Control Accuracy | ±0.25% of setpoint |
| Speed Range | 20-20,000 RPM (configurable) |
| Input Signals | Magnetic pickup (1-20kHz), 4-20mA, RTD/TC |
| Output Signals | 4-20mA, ±200mA servo drive |
| Control Algorithms | PID with adaptive gain |
| Response Time | <100ms (10-90% stroke) |
| Power Supply | 18-36V DC (24V nominal) |
| Power Consumption | 8W typical |
| Operating Temp. | -40°C to +85°C |
| Vibration Resistance | 15G (20-2000Hz) |
| Enclosure | Aluminum, IP66 |
| Certifications | ATEX, UL, CE, DNV |
WOODWARD 2301A 9907-018
Main Features and Advantages
Military-grade durability: The Woodward 2301A 9907-018 features hermetically sealed connectors and conformal-coated circuit boards that withstand salt fog, humidity, and hydrocarbon exposure. Its cast aluminum housing acts as a heat sink while providing EMI/RFI shielding.
Intelligent control capabilities: Adaptive PID tuning automatically compensates for load changes and system nonlinearities. The controller’s dual-channel speed sensing with voting logic ensures continuous operation even with sensor failure. Built-in diagnostics monitor actuator health and system response.
Field-proven architecture: Backward compatible with traditional 2301 mechanical systems, the 9907-018 version adds digital communications (Modbus RTU/J1939) while maintaining analog failsafe operation. Its universal input design accepts virtually any speed sensor or process transmitter.
Application Field
The Woodward 2301A 9907-018 excels in mission-critical speed control applications:
Power Generation: Governing for gas turbines up to 500MW
Marine Propulsion: Main engine control for naval and commercial vessels
Pipeline Compression: Anti-surge control for centrifugal compressors
Industrial Drives: Precision speed regulation for turboexpanders
Oil & Gas: Wellhead compressor control in remote locations
WOODWARD 2301A 9907-018
Related Products
2301E: Enhanced version with Ethernet connectivity
2301D: Dual-channel redundant control system
2301S: Simplified version for small engines
505XT: Woodward’s turbine control system
UG-40: Actuator commonly paired with 2301A
PGA/PG-EG: Pilot valves for hydraulic systems
Installation and Maintenance
Pre-installation preparation: Verify mounting surface flatness (<0.1mm warp) for proper heat dissipation. Route sensor cables separately from power lines using shielded twisted pairs. Configure failsafe settings and alarm thresholds before startup.
Maintenance recommendations: Perform annual calibration checks using Woodward’s Calibration Wizard software. Inspect connectors every 6 months for corrosion in marine environments. Monitor actuator current draw trends to predict maintenance needs. The 2301A 9907-018 supports hot firmware updates via RS-485.
Product Guarantee
Woodward guarantees the 2301A 9907-018 for 36 months against defects, including sensor-to-output performance verification. Each unit undergoes 500-hour accelerated life testing with thermal cycling and vibration exposure. Global service centers provide NIST-traceable recalibration, with emergency replacement available within 24 hours for critical applications. Legacy support extends to 20+ years after product discontinuation.
