Description
Woodward 1751‑6058 MPU Transformer Module
Product Overview
1751‑6058 is a 4‑channel Magnetic Pick‑up (MPU) signal conditioning transformer module developed by Woodward for turbine and engine control systems. It receives sine‑wave pulse signals from magnetic pickup speed sensors, performs isolation, impedance matching and signal transformation, and outputs standardized speed pulses to Woodward controllers such as MicroNet, NetCon, 505 / 505E governors. This module solves signal attenuation and anti‑interference problems for long‑distance MPU sensor wiring. It is legacy hardware, original production discontinued, mainly supplied as spare‑parts for existing gas‑turbine, steam‑turbine and engine control systems.
Woodward 1751-6058
Typical Applications
- Turbine speed measurement: Signal conditioning for MPU sensors on gas turbines, steam turbines and turbo‑compressors
- Overspeed protection loops: Isolation and conversion for redundant speed acquisition channels for safety overspeed protection
- Power generation industry: Generator shaft speed feedback for turbo‑generator units in thermal‑power plants
- Oil & gas industry: Compressor and engine speed monitoring for pipeline and refinery equipment
- Marine power systems: Shaft speed signal processing for marine turbine and engine control cabinets
- Retrofit & spare‑part replacement: Maintenance of existing Woodward control cabinets, upgrade of aged MPU signal circuits
Specifications & Technical Parameters
| Item | Specification |
|---|---|
| Model | 1751‑6058 |
| Module Type | 4‑Channel MPU Transformer / Signal Conditioning Module |
| Input Signal | Sine‑wave signal from magnetic pickup (MPU) sensors |
| Number of Channels | 4 galvanic‑isolated MPU input channels |
| Power Supply | 24 VDC (±20 %), typical power consumption 8 W |
| Mounting | Standard 35 mm DIN‑rail installation |
| Dimension (W×H×D) | 25 × 245 × 261 mm |
| Weight | Approx. 0.94 kg |
| Operating Temperature | ‑40 ℃ ~ +85 ℃ wide industrial range |
| Storage Temperature | ‑50 ℃ ~ +125 ℃ |
| Humidity | 5 %‑95 % RH, non‑condensing |
| Galvanic Isolation | Channel‑to‑channel & field‑to‑logic side isolation |
| Certifications | CE, UL, Class I Div.2 hazardous‑location approval |
| Protection Class | IP20 (cabinet‑mount only) |
| Indicator LEDs | Module power status and channel fault diagnostic LEDs |
Key Features & Benefits
- Four‑channel independent galvanic isolation: Each MPU channel is electrically isolated, avoids cross‑channel interference, supports redundant speed sensor deployment for overspeed protection.
- MPU signal impedance matching: Optimized for magnetic‑pickup sine‑wave signals, improves signal stability for long‑sensor‑cable field wiring.
- Wide operating temperature: Designed for severe turbine‑cabinet ambient conditions, adapts to power‑plant and offshore‑site temperature variation.
- DIN‑rail compact form factor: Easy cabinet layout, simple installation and replacement during overhaul.
- Built‑in channel diagnostics: LED status indication helps technicians quickly locate open‑circuit or abnormal MPU sensor wiring faults.
- Native compatibility: Directly interfaces with Woodward MicroNet, NetCon, 505 / 505E turbine governors without extra auxiliary circuits.
- Hazardous‑area certification: Suitable for Class I Div.2 cabinets in oil‑gas and petrochemical hazardous‑area installations.
Woodward 1751-6058
Related Series‑Family Models
Woodward turbine‑system MPU and signal‑conditioning hardware
- 1751‑6058: 4‑channel MPU transformer module (target model)
- 5441‑615: Single‑channel MPU interface board for MicroNet system
- 9907‑120: Woodward MPU magnetic pickup speed sensor
- 8200‑1003: Dual‑channel speed signal conditioning module
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