Description
The Woodward 9907-014 is a member of the legendary 2301A series, serving as an Electronic Speed Control for engine and turbine applications. It is designed to provide precise isochronous (constant speed) or droop speed control for prime movers. By receiving feedback from a Magnetic Pickup (MPU) and outputting a control signal to an actuator, the 2301A maintains consistent engine RPM regardless of load changes. This module is globally recognized for its reliability in industrial power generation, marine propulsion, and process control, making it an essential building block in legacy and modern governing systems.
Key Technical Specifications
| Parameter | Value/Description |
| Model Number | 9907-014 |
| Series | 2301A |
| Control Function | Isochronous and Droop Speed Governing |
| Input Signal | Magnetic Pickup (MPU) speed sensor |
| Output Type | 0–200 mA (or 4–20 mA depending on setup) |
| Operating Voltage | 24V DC nominal |
| Speed Range | Field-adjustable via potentiometer |
| Mounting | Chassis mount (standard industrial housing) |
| Operating Temp | -40°C to +85°C |
| Compliance | CE/UL/CSA certified variants |
Recommended Related Models
These Woodward components are frequently used alongside the 2301A to expand control capabilities:
- 9907-018: 2301A Load Sharing and Speed Control
- 9907-838: Load Sharing Module (Standalone)
- 9905-001: Speed Sensing Unit (SSU)
- 8271-850: DSLC (Digital Synchronizer and Load Control)
- 8440-1875: EasyGen-3200XT Controller (Modern replacement/upgrade)
- 8440-2027: EasyGen-2500 Controller
- 8272-544: MSLC (Master Synchronizer and Load Control)
- 8273-049: SPM-D Synchronizer
- 9907-164: Speed Control/Governor Unit
- 9908-011: Auxiliary Power Interface Module
Important Calibration Note: The 2301A 9907-014 features potentiometers for adjusting Gain, Reset (Integral), and Speed Settings. When commissioning or replacing this unit, it is vital to perform a “Bump Test” or “Step Response” adjustment under stable load conditions to prevent engine hunting (instability) or sluggish response. Always ensure the MPU signal frequency matches the controller’s input range.
