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5461-768 - Speed Control Module is available in stock which ships the same day.
5461-768 - Speed Control Module comes in UNUSED as well as REBUILT condition.
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TECHNICAL SPECIFICATIONS:
Part Number: 5461-768
Manufacturer: Woodward
Series: NetCon / MicroNet Architecture
Application Type: Speed Control Module
Input Signal: High-frequency pulse train from Magnetic Pickups (MPU) / Proximity sensors
Output Type: Low-latency digital/analog valve drive demand data to backplane bus
Operating Voltage: 24 VDC Nominal (Power derived via chassis backplane motherboard)
Control Accuracy: ±0.01% of rated speed (High-precision digital clock tracking)
Size: Standard single-slot chassis rack plug-in card configuration
Operating Temperature: -40 °C to +70 °C
Mounting: Chassis rack system guide mount (Vertical slot installation)
Repair: 3-7 days
Availability: In Stock
Weight: Approximately 0.6 kg (1.3 lbs)
Country of Origin: United States
The 5461-768 is a Speed Control Module designed and manufactured by Woodward for heavy-duty turbine governors and prime mover sequencing networks, specifically within the NetCon and early MicroNet processing chassis environments. Operating as a critical regulatory processing node, this module runs precise speed-governing loop calculations to control the velocity, acceleration schedules, and stable load parameters of the engine or turbine system.
HIGH-SPEED SIGNAL TRACKING & PROCESSING:
The core processing topology of the 5461-768 centers around an ultra-responsive speed-sensing and governing algorithm loop. The module captures high-frequency pulse trains directly from engine-mounted Magnetic Pickups (MPUs) that track the teeth of the shaft gear wheel. It converts these raw frequency readings into highly accurate, real-time velocity metrics, checking for any deviation from the target speed setpoint.
CLOSED-LOOP PID SPEED GOVERNING:
Once velocity parameters are calculated, the 5461-768 processes the signal through its internal PID (Proportional-Integral-Derivative) control network. When load demands shift or transients alter the system, the board runs real-time error corrections. It calculates the necessary adjustments and updates its output profiles, sending the refined data to auxiliary final drivers or fuel actuator cards (such as gas or liquid valve positioning modules) to change fuel delivery and maintain steady-state frequency control.
WHY BUY FROM WOC:
World of Controls is a specialized global authority in the lifecycle extension of legacy Woodward and GE turbine control equipment, providing the 5461-768 in both UNUSED and REBUILT conditions to eliminate operational latency. Our legacy quality-assurance protocol involves extensive multi-channel loop testing across precise frequency ranges, PID response simulation checks, high-potential isolation verification, and static-safe industrial warehouse protection. By partnering with WOC, you secure reliable hardware solutions reinforced by 24/7 technical consultation and accelerated global logistics.
What is Woodward 5461-768?
The 5461-768 is a dedicated Speed Control Module engineered by Woodward for NetCon and MicroNet control rack systems. It acts as an isolated hardware processing interface that tracks prime mover shaft velocities via magnetic pickups and executes high-speed governor routines to control turbine acceleration and steady-state speed.
How does this module track changes in turbine speed?
The card interfaces directly with high-frequency, alternating current (AC) pulse waves sent from external Magnetic Pickups (MPUs). By measuring the frequency of these incoming sensor pulses—which correspond to the teeth on the spinning gear wheel—the module tracks sub-millisecond variations in engine velocity.
What is the exact role of the 5461-768 inside a closed-loop speed governing system?
The 5461-768 operates as the primary tracking and processing node within a proportional-integral-derivative (PID) speed control loop. It continuously samples high-frequency pulse trains from raw Magnetic Pickups (MPUs), calculates the velocity vector, cross-references it with the software speed reference, and writes the corrected digital error demand directly to the chassis backplane bus.
How does this card handle signal attenuation or noise on the incoming MPU lines?
The board utilizes specialized internal signal conditioning hardware. Raw AC voltages from magnetic pickups pass through an isolated Schmitt-trigger network and low-pass analog filters. This design eliminates high-frequency electromagnetic harmonics, cross-talk, and tooth-profile irregularities, converting unstable sine waves into clean digital square waves for accurate clock tracking.
