The Woodward 8273-126 (2301D Series, Revision E) is a microprocessor-based digital load sharing and speed control module. It is engineered to provide precise control and management for diesel engines, gas engines, and steam or gas turbines driving electrical generators.
Product Datasheet Parameters
Model Designation: 2301D Series (Part No: 8273-126, Rev E)
Device Type: Load Sharing and Speed Control Unit
Operating Voltage: 24 VDC nominal (20 to 32 VDC range)
Power Consumption: 10 W max
Discrete Inputs: Configurable contacts for start/stop, raise/lower, speed setting, and mode selection
Analog Inputs: 4 to 20 mA or 1 to 5 VDC for auxiliary control or setpoint input
Analog Outputs: 4 to 20 mA for actuator demand indication
Communication Port: RS-232 / RS-485 for configuration and service tool access via Woodward ToolKit
Operating Temperature: -40 °C to +70 °C
Vibration & Shock: US Military Standard MIL-STD-810C / Lloyds Register Type Approved
Enclosure Protection: IP20 (designed for cabinet mounting)
Certification Standards: CE, UL/cUL listed, CSA certified for hazardous locations (Class I, Division 2)
Product Introduction
▪ Microprocessor-based digital design offering highly accurate speed control, precise frequency regulation, and stable load sharing across multi-unit generator setups.
▪ Programmable configuration via Woodward ToolKit software, allowing flexible adaptation to diverse prime mover types and plant requirements.
▪ Integrated PID control algorithms for seamless droop or isochronous governing, dynamic braking control, and dual dynamics capability.
▪ Robust industrial housing built to withstand severe environmental conditions, high vibration, and wide operating temperature ranges.
Product Use Precautions
▪ Ensure that all external control power and actuator supplies are completely isolated before performing wiring installation or terminal maintenance.
▪ Verify that software configuration parameters (such as gear ratio, actuator type, and speed ranges) match the exact specifications of the prime mover before initial startup.
▪ Maintain proper shielding and grounding on all analog signal and communication cables to protect against electromagnetic and radio frequency interference.
▪ Confirm that cabinet temperature and ventilation meet the operating thermal requirements to maintain long-term module reliability.
Frequently Asked Questions Q&A
Q: What is the primary function of the Woodward 8273-126 controller?
A: It functions as a digital load sharing and speed control unit designed to regulate prime mover speed and coordinate load distribution for electrical generators.
Q: Which product family and hardware revision does this unit belong to?
A: It belongs to the Woodward 2301D series (Part Number 8273-126) and is built to Revision E specifications.
Q: How is the 2301D controller configured?
A: It is configured digitally using Woodward ToolKit software via an RS-232 or RS-485 communication link.
