Note; All products on this site are special products, the market price has been fluctuating, the specific customer service offer shall prevail, because the product is a new product, the picture is not a real shot, please confirm with customer service before placing an order model and product, price and other details, the site used, new are for sale, please contact customer service communication. 8273-140 is the old part number of Woodward 2301D Digital Load Sharing & Speed Control, corresponding to the new part number 8273-501. Belonging to Woodward's industrial control product series, it is suitable for engine speed and load control in ordinary non-hazardous locations. Its old software part number is 5418-1989, and the replaced software is 5418-159. As an early model of the Woodward 2301D series, it is mainly used for engine speed and load control in ordinary industrial scenarios. Through functional optimizations such as a new PID algorithm, adaptive speed filtering, and actuator position droop, it enhances the control stability of low and medium-speed engines. After replacing it with 8273-501, attention should be paid to software compatibility and parameter retuning. Its extended Modbus communication function further enhances system integration capabilities, making it suitable for industrial processes requiring digital monitoring and remote control.
Data Sheet
2301D Application Note.pdf
- Supports digital load sharing and speed control, suitable for medium and high-speed engines (e.g., MPU frequency of 1000 Hz and above).
- Adopts a new PID algorithm to optimize control accuracy for low and medium-speed engines, addressing speed fluctuation issues in traditional control systems.
- Speed Sensor Function 1: Designed for medium and high-speed engines. By dividing the MPU gear into 16 equal parts, speed data is updated once every 1/16th of a revolution to ensure high-frequency sampling stability.
- Adaptive Speed Sensing Filter: A new feature that learns anomalies in gear tooth profiles, torsional vibrations, and low-speed firing frequencies, reducing noise interference (e.g., MPU signal fluctuations caused by gear wear or irregular flywheel holes).
- Actuator Position Droop: Works with the "Droop/Isochronous" discrete input. When load increases, actuator current rises, and speed adjusts according to the preset droop percentage to ensure bump-less load transfer.
- Remote Lock In Last: When remote speed or baseload analog input is lost, it can lock in the last value or ramp down to the minimum, enhancing system fault tolerance.
- Idle Proportional Gain: Automatically calculates the gain based on the ratio of idle speed to rated speed (e.g., if idle speed is 1200 rpm and rated speed is 1800 rpm, the gain is 0.667 of the rated value). This ratio can be manually adjusted to optimize idle stability.
- The new software (5418-159) is compatible with all legacy 2301D/2301D-EC controllers or analog load sharing systems. However, PID parameters (e.g., gain, reset, actuator compensation) must be re-tuned; direct copying of parameters from old devices is prohibited.
- After replacement, reset PID parameters to default values. Refer to Manual 26288 to retune based on engine type, avoiding control anomalies caused by parameter mismatches.
- Writable Points: Remote Load Control State, Load Share Relay State, Engine Run/Stop State, Rated/Idle Speed State, Raise Speed State.
- Readable Points: Unload Generator State, Baseload Mode State, Second Dynamics State, Failed MPU Override State, Reset Alarms - Shutdown State.
8273-140 (2301D):
- Application Environment: Ordinary non-hazardous areas.
- Software Version: 5418-1989.
- Core Difference: Standard control without explosion-proof design.
8273-138 (2301D-EC, Ordinary Location):
- Application Environment: Ordinary non-hazardous areas (EC version).
- Software Version: 5418-1990.
- Core Difference: Possibly optimized for electromagnetic compatibility (EC).
8273-141 (2301D, Hazardous Location):
- Application Environment: Hazardous areas.
- Software Version: 5418-1989.
- Core Difference: Explosion-proof design suitable for hazardous scenarios.
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