Products Description
Woodward 8901-457 Digital Governor Controller
As an authorized Woodward distributor, Saulcontrol delivers precision engine control solutions with comprehensive 1-year warranties and expert technical support for critical power generation and industrial applications.
Technical Specifications
| Product Model | Woodward 8901-457 |
| Manufacturer | Woodward, Inc. |
| Product Type | Digital Engine Governor |
| Control Modes | Speed, Load, Process |
| Speed Input | Magnetic pickup (1-12,000 Hz) |
| Control Outputs | ±20mA PWM, 4-20mA |
| Communication | CANbus, Modbus RTU |
| Operating Voltage | 10-35V DC |
| Accuracy | ±0.25% steady state |
| Response Time | Adjustable 0.1-10 seconds |
| Operating Temp | -40°C to +85°C |
| Protection Rating | IP52 (NEMA 4X optional) |
| Dimensions | 150 × 100 × 50 mm |
Main Features and Advantages
The 8901-457 delivers advanced engine control with triple-redundant processing architecture for critical applications. Featuring adaptive tuning algorithms, it automatically compensates for load changes and system dynamics to maintain ±0.25% speed stability under varying conditions. The controller’s robust construction withstands severe vibration environments (up to 15g RMS) while maintaining precise control accuracy.
Integrated predictive diagnostics monitor actuator performance and detect speed sensor degradation before failures occur. Dual-module hot standby capability ensures uninterrupted operation during controller swaps. The intuitive Toolkit software provides commissioning wizards, comprehensive trending, and real-time performance optimization tools, reducing setup time by up to 70% compared to legacy governors. CANbus connectivity enables seamless integration with modern control systems and remote monitoring platforms.
pplication Areas
Power Generation: The 8901-457 controls generator sets in prime power applications, providing isochronous load sharing between multiple units. For black-start facilities, its fast response maintains frequency during sudden load acceptance. Combined heat and power (CHP) plants utilize its process control capabilities for steam pressure and temperature regulation.
Marine and Industrial: In LNG carriers, the controller manages dual-fuel engines during fuel switching operations without speed fluctuations. Its torque limiting functionality protects drivetrains in heavy equipment applications. For compressor stations, the module integrates with anti-surge control systems for critical process protection.
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5442-258 – Communication gateway for SCADA integration
