Woodward 8444-1091

Product Introduction
The Woodward 8444-1091 is a high-performance digital control module, specifically designated as the MFR300-71M. It is engineered to serve as a multifunctional relay and power quality monitoring device within industrial control systems. This module is widely utilized for precise parameter debugging, synchronization, and load sharing in power generation and turbine control applications.

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Description

Woodward 8444-1091

Technical Specifications

  • Product Series: MFR300-71M / 8444-1091
  • Electrical Parameters: Operates on a standard 220V working voltage with a 50Hz output frequency.
  • Processing Power: Features a high-speed processor operating at 50MHz.
  • Memory Capacity: Equipped with 53MB for both program and data storage.
  • Communication: Supports USB interface (e.g., via 5417-1251 cable) for parameter downloading and debugging.

Functional Features

  • Power Quality Monitoring: Continuously monitors electrical parameters to ensure grid stability and generator safety.
  • Synchronization Control: Facilitates precise synchronization of generators to the grid or other generators.
  • Load Sharing: Manages active and reactive load sharing among parallel generating units.
  • Programmable Logic: Offers high flexibility with dual modes (Programming and Running) for customized control logic.

Application Scenarios
Extensively applied in wind power generation (e.g., matching 115-type wind turbines), industrial steam turbines, and utility turbine generators for speed, load, and electrical parameter control.

Performance Parameters

  • Environmental Tolerance: Operates reliably in ambient temperatures from 0°C to 60°C and up to 60% non-condensing humidity.
  • Reliability: Designed for continuous 24/7 operation in harsh industrial environments.

Material Composition
Housed in a robust, module-style enclosure designed for control panel integration. Internal printed circuit boards are manufactured with industrial-grade components and protective conformal coatings.

Structural Characteristics
Weighs approximately 6.5kg with a compact, modular form factor. Features a front-panel interface with a two-line text display (24 characters per line) for intuitive, menu-driven operation and maintenance.

Working Principle
The module samples AC voltage and current waveforms via high-precision analog-to-digital converters. Its microprocessor executes complex algorithms to calculate power quality metrics (frequency, phase, harmonics) and executes control logic to output relay signals or analog commands to actuators and breakers.

Installation Requirements
Must be securely mounted in a control room or panel environment. Requires the installation of the TOOLKIT software (version 4.4 or higher) and the corresponding SID file on a PC for initial parameter configuration and downloading via the designated USB data cable.

Usage Precautions

  • Always use the official Woodward TOOLKIT software for parameter configuration to prevent system instability.
  • Ensure the power supply is stable and properly grounded before energizing the module.
  • Regularly back up the configuration parameters to prevent data loss during maintenance.