Description
- Part Number: 9907-167
- Manufacturer: Woodward
- Series: 2301A (High Voltage Version)
- Operating Voltage: 88–132 VAC or 90–150 VDC
- Speed Range: 500 Hz to 25,000 Hz
- Output Signal: 0–160 mA (To actuator)
- Load Sharing: 0–6 VDC proportional to load
- Power Consumption: Approximately 10 W
Product Description
The Woodward 9907-167 is a 2301A series electronic control assembly designed for load sharing and speed control of diesel engines, gas engines, or steam turbines. This specific model is the high-voltage variant, capable of operating on standard AC or DC utility power without the need for an external transformer.
The 2301A provides a robust solution for managing prime movers in generator set applications. It features an isochronous speed control mode for constant frequency and a droop mode for parallel operation with an infinite bus or other engines. The unit also includes built-in load sensor circuitry to ensure proportional load sharing between multiple paralleled units.
WOODWARD 9907-167
WOODWARD 9907-167
WOODWARD 9907-167
Application Areas
- Generator Sets: Parallel operation of multiple generators in power plants or emergency backup systems.
- Marine Propulsion: Coordinating multiple engines to drive a single shaft or managing diesel-electric propulsion.
- Industrial Prime Movers: Speed governing for mechanical drives and compressors.
- Utility Paralleling: Managing the transition and load balance when connecting local generation to the utility grid.
Product Specifications
- Weight: 1.60 kg
- Dimensions: 245 mm x 203 mm x 82 mm
- Housing: Rugged aluminum chassis for bulkhead mounting
- Adjustments: Multi-turn potentiometers for Gain, Reset, Actuator Compensation, and Rated Speed
- Country of Origin: USA
Operating Precautions
- High Voltage Safety: Because this unit operates at up to 132 VAC / 150 VDC, ensure all power is disconnected before adjusting terminal connections or internal jumpers.
- Magnetic Pickup (MPU): Ensure the MPU air gap is set correctly (typically 0.010 to 0.020 inches). A weak speed signal can cause erratic governing or a “Loss of Speed” trip.
- Shielding: The speed sensor and actuator wiring MUST be shielded. Failure to use shielded twisted-pair cabling can lead to electromagnetic interference causing speed instability.
- Potentiometer Handling: Use a small, non-conductive screwdriver for adjustments. Do not force the potentiometers past their mechanical stops, as this will damage the internal wiper.
Recommended Similar Products
| Model Number | Product Description | Voltage Range |
|---|---|---|
| 9907-165 | 2301A Load Sharing | 20–40 VDC (Low Volts) |
| 9907-018 | 2301A Speed Control | Speed Only (No Load Share) |
| 9905-020 | 2301D Digital Control | Digital Replacement |
| 8273-501 | 723 Plus Control | Advanced Digital Series |
| 9907-838 | 2301A LSSC | Forward/Reverse Power |
