The Woodward 8701-758 and 5601-1126 are professional-grade industrial control components typically utilized in Digital Speed Control Systems and Turbine Governors.

These two part numbers are frequently paired together, representing a specific controller module (8701-758) and its associated digital interface or display panel (5601-1126).

Technical Parameter Table

Related Models

These components are often found in systems alongside:

8237-1600: ProTech-GII Overspeed Detection.

8200-1300: 505 Series Digital Governor.

9907-162: 505 Digital Turbine Control.

EASYGEN-3500: Power Management/Parallel Generator Controller.

Application Cases

Petrochemical Refineries: Managing the signal conversion for pneumatic actuators in fuel lines to ensure stable combustion.

Power Generation: Precise speed regulation for steam and gas turbines to maintain grid frequency synchronization.

Steel & Mining: Control of large boiler fans, induced draft fans, and circulating pumps to optimize energy consumption.

Maritime Propulsion: Engine speed control and load sharing for large-scale vessel diesel engines.

Product Advantages and Features

High-Precision Conversion: Provides exceptionally accurate current-to-pressure conversion, essential for sensitive valve positioning.

Ruggedized Design: The cast aluminum body is resistant to vibration and extreme temperatures, making it suitable for turbine skids.

Signal Stability: Features integrated filtering to minimize the effects of electromagnetic interference (EMI) and torsionals in reciprocating engines.

Triple Modular Potential: Often integrated into Woodward’s redundancy architectures to prevent single-point failures in critical safety loops.

Other Models in the Same Series

8701-757 / 8701-759: Alternate pressure range variants.

5601-1125: Standard Interface Panel (Non-backlit).

9905-973: 2301A Series Load Sharing and Speed Control.

8440-1884: easYgen series generator set controllers.

Introduction

The Woodward 8701-758 and 5601-1126 constitute a robust digital control interface solution designed for the demanding requirements of industrial prime movers.

While the 8701-758 focuses on high-precision signal processing and conversion (ensuring that electrical commands from the DCS are accurately translated into mechanical or pneumatic action), the 5601-1126 serves as the human-machine interface (HMI).

Together, they provide operators with real-time diagnostics, speed monitoring, and the ability to adjust control dynamics on the fly.

This pair is widely respected in the industry for its “set-and-forget” reliability in harsh environments.