Description
Description
The Woodward 9905-068 2301A is a precision speed control unit designed for industrial prime mover applications. This control system is engineered to provide reliable speed regulation for engines, turbines, and other rotating machinery by monitoring process inputs and modulating actuator outputs to maintain setpoint stability.
Features
- Supports process inputs of 4–20 mAdc or 1–5 Vdc.
- Provides a dedicated actuator output of 0 to 200 mA (30 to 45 Ohm load).
- Includes optional speed trim functionality, supporting 0 to 100 Ohm for 0 to –10% speed adjustment.
- Designed for high-reliability operation in demanding industrial environments.
Technical Specifications
| Product Model |
9905-068 2301A |
| Manufacturer |
Woodward |
| Process Input |
4–20 mAdc or 1–5 Vdc |
| Actuator Output |
0 to 200 mA, 30 to 45 Ohm |
| Operating Temperature |
-40 to +85 degC (-40 to +185 degF) |
| Storage Temperature |
-55 to +105 degC (-67 to +221 degF) |
| Speed Trim (Optional) |
0 to 100 Ohm (0 to -10% speed change) |
Installation Guidelines
- Ensure the unit is mounted in a location protected from excessive vibration and moisture.
- Use appropriate shielded cabling for all process input and actuator output connections to minimize EMI interference.
- Verify that the power supply matches the requirements specified on the unit nameplate before applying power.
- Ensure proper grounding of the chassis to a common earth point to prevent ground loops.
- Always disconnect power before performing any wiring changes or maintenance on the terminal blocks.
FAQ
What is the primary function of the Woodward 2301A?
The 2301A is a speed control module that regulates the speed of prime movers by adjusting fuel or steam flow via an actuator based on a process input signal.
Can the speed be adjusted manually?
Yes, the unit supports an optional speed trim input (0 to 100 Ohm) which allows for a speed adjustment range of 0 to -10%.
