Product Overview
Woodward 1751‑6058 is a dedicated four‑channel MPU transformer module for gas‑turbine, steam‑turbine and heavy‑duty engine control systems. It accepts raw sine‑wave signals from magnetic pickup speed sensors mounted on rotating shafts, performs signal transformation, filtering and noise suppression, and delivers conditioned speed‑related signals to Woodward control processors. This hardware stabilizes speed‑sensor signals under high‑vibration and electrically‑noisy plant‑site conditions, improving the reliability of overspeed protection and closed‑loop speed regulation functions. It is widely stocked as spare‑part hardware for maintenance and retrofit of legacy Woodward‑based power‑generation installations.
Series
1751‑6058 belongs to Woodward’s speed‑sensor‑interface hardware family. These MPU transformer modules serve as the intermediate signal‑conditioning link between shaft‑mounted magnetic‑pickup sensors and turbine‑control mainboards. Different variants cover multi‑channel configurations for single‑redundant and triple‑redundant overspeed‑monitoring architectures used in power‑plant prime‑mover control systems.
Product Features
‑ Four independent MPU input channels for multi‑sensor shaft‑speed acquisition ‑ Transformer‑based signal conditioning for raw sine‑wave magnetic‑pickup signals ‑ Built‑in EMI noise suppression for electrically noisy turbine‑control cabinet environments ‑ Optimized frequency response for wide‑range prime‑mover shaft‑speed measurement ‑ Heavy‑duty industrial hardware for continuous long‑term operation under vibration ‑ Chassis‑mount mechanical design for installation inside turbine‑control cabinets ‑ Provides stable conditioned speed feedback for overspeed protection and governor control logic ‑ Direct drop‑in replacement for original 1751‑6058 units for field‑site retrofit work
Product Parameters
‑ Part Number: 1751‑6058 ‑ Number of Channels: 4 independent MPU input channels ‑ Input Signal Type: Sine‑wave signal from magnetic pickup (MPU) speed sensors ‑ Mechanical Environment: Rated for high‑vibration turbine‑cabinet conditions ‑ Operating Temperature: ‑20 °C ~ +70 °C ‑ Storage Temperature: ‑25 °C ~ +80 °C ‑ Relative Humidity: 5‑95 %, non‑condensing ‑ Mounting: Turbine‑control chassis‑mount ‑ Protection Rating: IP20 (cabinet‑internal application) ‑ Shipping Weight: Approximately 3 kg ‑ Approvals: Designed for power‑generation prime‑mover control‑system applications
Product Specifications
‑ Form Factor: Complete assembled chassis‑mount MPU transformer module ‑ Signal Processing: Transformer isolation and waveform conditioning for MPU sensor signals ‑ Compatibility: Matched with Woodward turbine and engine governor control platforms ‑ Cooling: Natural convection ‑ Maintenance: Direct swap‑out spare module for turbine‑control‑system repair
Function
1751‑6058 receives raw sine‑wave speed‑pulses from up to four magnetic‑pickup sensors fitted on turbine or engine shafts. Internal transformer circuits isolate and condition these variable‑amplitude frequency‑based speed signals, filter out electrical interference, and output stabilized conditioned signals to the Woodward main control unit. Reliable processed speed data enables accurate closed‑loop speed governing and overspeed‑protection trip logic for rotating prime‑mover equipment.
Purpose
Condition multi‑channel magnetic‑pickup speed‑sensor signals for turbine and heavy‑duty‑engine control systems. Replace defective 1751‑6058 modules to restore shaft‑speed‑measurement integrity for governor and overspeed‑protection functions. Used for spare‑part stocking and maintenance of legacy Woodward‑controlled power‑generation prime‑mover installations.
Application Fields
Gas‑turbine and steam‑turbine power‑generation units, heavy‑duty industrial engine gen‑sets, combined‑cycle power plants, offshore‑platform prime‑mover control, turbine overspeed‑protection‑system maintenance, legacy Woodward governor‑system retrofit projects.
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