The 9905-860 (Model: 9905-860) is a high-precision digital control unit designed specifically for the Peak 150 series and integrated within the 2301D digital control family. This module is engineered to provide full-authority speed regulation for steam turbines and industrial engines. By utilizing advanced digital algorithms, the 9905-960 (Part Number: 9905-860) ensures stable operation across a wide RPM range, effectively managing load transients and preventing mechanical overspeed conditions.
As a critical component for mission-critical power generation and mechanical drives, the 9905-860 (Model: 9905-860) supports both isochronous and droop control modes. This flexibility allows for precise frequency control in island mode or stable load sharing when paralleled with a utility grid. Its rugged hardware design is optimized for the harsh electrical environments found in marine propulsion and oil and gas compressor stations, featuring extensive internal diagnostics and galvanic isolation to maintain system integrity.
The 9905-860 (Model: 9905-860) is built for high-speed deterministic governing with versatile I/O capabilities.
| Feature | Details |
| Manufacturer | Woodward |
| Model Number | 9905-860 |
| Series | Peak 150 / 2301D Digital Control |
| Product Type | Digital Speed Control Unit |
| Input Power | 18–32 VDC (Nominal 24 VDC) |
| Power Consumption | 15 W Typical |
| Speed Sensor Input | Magnetic Pickup (MPU) or Proximity Probe |
| Control Range | 0–10,000 RPM (Programmable) |
| Analog Inputs | Configurable for Speed Trim, Bias, or Load Sharing |
| Analog Outputs | 4–20 mA (Engine Speed/Load Feedback) |
| Communication | RS-232 / RS-485 Service Ports |
| Operating Temp | –40°C to +70°C |
| Dimensions | 2.2 cm $\times$ 12.4 cm $\times$ 12.6 cm |
| Weight | 0.1 kg (Module Weight) |
| Origin | USA |
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