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5461-769 - Speed Reference Module is available in stock which ships the same day.
5461-769 - Speed Reference Module comes in UNUSED as well as REBUILT condition.
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SPECIFICATIONS:
Part Number: 5461-769
Manufacturer: Woodward
Series: MicroNet / NetCon 5000
Product Type: Speed Reference / Setpoint Module
Input Signal: Digital Bus / Potentiometer / External Bias
Output Signal: High-resolution Speed Setpoint (Digital/Analog)
Communication: VME Bus Interface
Operating Temperature: -40 °C to +70 °C
Mounting: Chassis / Rack Mounted
Weight: 1.2 kg
Availability: In Stock
Country of Origin: United States
FUNCTIONAL DESCRIPTION:
The 5461-769 Speed Reference Module is a specialized control component designed for Woodward MicroNet and NetCon 5000 systems. Its primary role is to establish and manage the target speed setpoint for a turbine or engine. This module acts as the baseline for the entire governor control loop, determining the desired RPM that the system must maintain. It processes commands from operator interfaces, remote dispatch systems, or manual potentiometers and translates them into a precise digital reference signal. This signal is then compared against the actual measured speed by the Master CPU to calculate the necessary actuator adjustments for isochronous or droop operation.
PRECISION SETPOINT MANAGEMENT AND BIASING:
Engineered for high-stability applications, the Reference Module ensures that the speed reference remains constant even under varying electrical conditions. It features sophisticated Ramp logic, which dictates how quickly the speed reference can change. This prevents sudden mechanical stresses on the turbine during load increases or decreases. The module also supports external biasing, allowing auxiliary systems such as an automatic synchronizer or a load-sharing controller to slightly offset the speed reference for fine-tuning frequency and phase matching during grid synchronization.
SYSTEM INTEGRATION AND SIGNAL INTEGRITY:
The Reference Module interfaces directly with the high-speed VME backplane, providing the Master CPU with real-time updates of the current speed setpoint. It is built with industrial-grade shielding and filtering to eliminate signal jitter and electromagnetic interference, ensuring that the reference signal is clean and deterministic. The module includes dedicated memory for storing configuration parameters, such as Idle Speed, Rated Speed, and Maximum Limit, ensuring these critical safety bounds are maintained even if communication with an external HMI is momentarily lost.
AVAILABILITY AND SUPPORT:
World of Controls offers the Speed Reference Module in both unused and fully refurbished conditions. To ensure the highest level of performance, every unit is subjected to rigorous calibration testing to verify that the output setpoints remain linear and accurate across the entire operating range. We provide a full warranty on all units and offer 24/7 technical support for system commissioning, setpoint tuning, and troubleshooting. Our global logistics team is available to provide rapid delivery for both scheduled maintenance and emergency repairs to keep your power generation systems stable.
What is the Woodward 5461-769?
It is a Speed Reference Module used in MicroNet and NetCon systems. It is responsible for generating the target speed signal (setpoint) that the control system uses to regulate the engine or turbine. It essentially tells the system how fast the machinery should be running at any given time.
What is the primary use of the Woodward 5461-769?
This module is primarily used in turbine governor systems to manage speed ramps and setpoints. It takes inputs from the operator or remote systems and provides a stable, regulated reference for the control loop. It is a critical component for ensuring smooth transitions during startup, synchronization, and load changes.
How does the module protect the turbine during speed changes?
The Reference Module utilizes programmable ramp rates. When an operator requests a speed change, the module does not jump to the new value instantly; instead, it ramps the reference at a controlled, safe rate. This prevents thermal shock and mechanical strain on the turbine blades and shaft during acceleration or deceleration.
What happens if the speed reference signal is lost?
The Reference Module is designed with internal safety limits. If a failure is detected in the input signal or internal circuitry, the module can be programmed to hold the last valid speed or return to a safe Idle reference. Integrated diagnostics will immediately alert the Master CPU to trigger a system-level alarm or trip to protect the machinery.
