1751-6058 | Woodward | 4 Channel MPU Transformer
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Product origin New/used
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The 1751-6058 is a Woodward 4-channel MPU transformer isolation module used for
The 1751-6058 is a Woodward 4-channel MPU transformer isolation module used for isolating, filtering, and level conversion of signals from magnetoelectric speed sensors (MPUs). It provides high-precision speed signals to turbine/generator control systems and is a core signal conditioning unit for gas turbine, steam turbine, and generator set control.
I. Basic Information
Model: 1751-6058 (Common variant 1751-6058B)
Full Name: 4 Channel MPU Transformer
Manufacturer: Woodward (USA)
Function: MPU signal isolation, amplification, and anti-interference processing; compatible with NetCon, SIO, and 5000 series control systems
Status: Original product, industrial grade, 1-year warranty
II. Core Specifications
Number of Channels: 4 independent MPU inputs (can simultaneously connect 4 magneto-electric speed sensors)
Signal Processing: Transformer isolation + differential filtering, suppressing common-mode interference (EMI/RFI)
Input Compatibility: Standard MPU (250Ω, 1.5–100V AC, 0.1–10kHz)
Output Characteristics: Isolated differential signals, compatible with Woodward FTM analog input cards
Isolation Strength: 2500Vrms (between channels, between field and control system)
Operating Temperature: −40°C ~ +85°C (Wide Temperature Industrial Grade)
Dimensions/Weight: Standard PCB board, approx. 3kg
Mounting: Rail/panel mounting, compatible with Woodward standard chassis
III. Working Principle
MPU Input: Magnetoelectric sensor generates alternating voltage signal as gears rotate.
Transformer Isolation: 4 independent transformers achieve electrical isolation, eliminating ground loop current.
Signal Conditioning: Filtering, amplification, impedance matching, outputting a stable differential signal.
System Interoperability: Connects to control cards (such as FTM) for speed measurement, overspeed protection, and synchronization control.
IV. Typical Applications
Gas/Steam Turbines: Speed monitoring, overspeed protection (ETS), load control
Generator Sets: Grid synchronization, frequency control, speed feedback
Industrial Drives: High-precision closed-loop speed control for compressors, pumps, and fans
Key Advantages: 4-channel redundancy, single module failure does not affect the system; high isolation adapts to strong interference environments.
V. Part Number Analysis
1751: Woodward Signal Conditioning Module Series
6058: 4-Channel MPU Transformer Isolation Module (B (Hardware revised version)
VI. Procurement and Selection Key Points
System Compatibility: Only for Woodward NetCon/SIO/5000 series; cannot replace other brands.
Channel Configuration: 4 independent channels, can connect to 4 MPUs, supports redundant configuration.
Environmental Adaptability: Wide temperature range design, suitable for extreme industrial environments (−40°C ~ +85°C).
Substitution: The older 1751-147 model is discontinued; new projects should directly select 1751-6058.
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