| Feature | Specification |
| Model | 9907-247 (Rev H) |
| Control | 828 Digital Series |
| Input | 18–40 VDC |
| Output | 0–200 mA Actuator |
| Protection | IP56 Sealed Chassis |
The Woodward 9907-247 is a high-performance 828 Digital Control designed for reciprocating engines, including gas, diesel, and dual-fuel configurations. This Revision H unit features advanced microprocessor-based logic for precise speed governing and load management, providing superior stability compared to older analog systems. Its rugged construction and environmental sealing make it an ideal choice for power generation, marine propulsion, and industrial pump applications where reliability is paramount.
WOODWARD 9907-247 40VDC
Differences from Similar Models
The 9907-247 Revision H is an upgraded version of the earlier 828 series (like the 9907-147), offering enhanced electromagnetic compatibility (EMC) and improved internal diagnostics. While the 2301D series is more common for basic load sharing, the 828 Digital Control provides a more complex set of configurable I/O and programmable control curves. Specifically, Revision H addresses stability issues found in older revisions when operating in high-vibration environments, making it more resilient for direct engine-skid mounting.
Operational Tips
- Firmware Verification: Since this is Revision H, ensure your handheld programmer or PC software is updated to recognize the specific register map for this hardware version to avoid configuration errors.
- Grounding: To prevent “erratic speed” signals, the chassis must be grounded to the engine block using a heavy-duty braided strap, ensuring the resistance is as low as possible.
- Shielding: Always route the Magnetic Pickup (MPU) cables away from high-voltage AC lines to prevent electrical noise from interfering with the digital speed-sensing logic.
