WOODWARD 5441-669 Product Detailed Description

Product Model: WOODWARD 5441-669

Brand: WOODWARD (Woodward)

Product Type: NetCon 5000 / MicroNet Series Synchronous Controller / Load Sharing Module (Synchronizer / Load Sharing Module)

Generation Time: 2026-05-18 11:31:28

I. Product Overview

WOODWARD 5441-669 is a dedicated synchronous and load sharing controller module for the NetCon 5000 and MicroNet control systems. It is specifically designed for the automatic synchronization, frequency/voltage regulation, and load distribution of generator sets (diesel / gas / steam turbines), and is the core control component for achieving parallel operation of multiple generators and grid-connected power generation. This module is a discontinued model, and the market mainly circulates refurbished / spare parts. 

II. Core Functional Characteristics

Automatic Synchronization Control: Achieve automatic frequency matching, phase synchronization, and voltage tracking between the generator and the grid / busbar, completing seamless grid connection without impact.

Precise Load Distribution: Support ** isochronous load distribution (Isochronous) and droop load distribution (Droop) ** modes to ensure power balance when multiple generators are connected in parallel.

Dual Mode Regulation:

Speed Control: Adjust the speed of the engine / turbine to stabilize the system frequency.

Voltage Control: Adjust the AVR (Automatic Voltage Regulator) to stabilize the system voltage.

Dual Serial Port Communication: Equipped with RS-232 and RS-422 dual serial ports for parameter configuration, status monitoring, and data acquisition.

Adaptive Sensing: Built-in adaptive algorithms to precisely process speed / voltage signals, with strong anti-interference capability.

Data Recording: Supports recording of key operating parameters and events for fault tracing and analysis.

Hot Swap Design: Supports online maintenance, reducing system downtime.

Industrial Grade Reliability: Wide temperature, shock-resistant design to meet 24/7 continuous production environments in power plants, petrochemicals, ships, etc.

III. Technical Specifications

1. Core Performance

Control Type: Digital Synchronizer & Load Sharing Controller

Processor: 32-bit industrial-grade dedicated processor

Control Cycle: < 10ms

Synchronization Precision: Frequency ± 0.01Hz, Phase ± 1°

Allocation Precision: Load Allocation Error < ± 2%

Memory: Built-in Flash, stores configuration parameters and control programs

2. Input Output

Speed Input: 2 channels, supports MPU eddy current sensor (0-15kHz)

Voltage Input: 3-phase voltage signal input (0-480V AC)

Control Output:

Speed Regulation: 4-20mA / 0-10V (controls speed controller)

Voltage Regulation: 4-20mA / 0-10V (controls AVR)

Grid Connection Command: Relay output (close / open circuit breaker)

Digital I/O: 8 channels DI (status / command), 8 channels DO (alarm / status)

Communication Interface: RS-232, RS-422 (optional Modbus protocol)

3. Physical and Environment

Size (W×H×D): 229 mm × 178 mm × 45 mm

Weight: Approximately 1.0 kg

Power Supply: 24 VDC ±10%

Operating Temperature: -40°C ~ +70°C

Protection: IP20

4. Product Status

Product Status: Discontinued (Out of Production)

Alternative Model: 8440-1706 (SPM-D11) (New Generation Digital Synchronizer and Load Sharing Controller, In Service)

Series Positioning:

5441-635: Processor Module (Out of Production)

5441-669: Synchronization / Load Sharing Module (Out of Production)

5441-645: Digital Speed Controller (Out of Production)

5441-661: 10A Relay Output Module (Out of Production)

IV. Typical Application Scenarios

Parallel Operation of Generator Sets: 2 or more diesel generators, gas generators, steam generators connected to the grid / island parallel operation to achieve automatic synchronization and load distribution.

Grid Connection Control: Stand-alone power plants, emergency power stations, ship power stations connect generators to the public grid, achieving seamless, fully automatic grid connection without impact.

Load Distribution Control: Pump groups, compressors, fan systems driven by multiple motors, achieving precise distribution of power loads.

Frequency / Voltage Regulation: Frequency and voltage stability control in isolated grids (such as remote mining areas, islands).

Backup power supply switching: Automatic synchronous and rapid switching control of UPS and emergency generator systems.

V. System Configuration and Compatibility

1. Essential Components

Main Controller: 5441-635, 5435 series

Power Module: 5439-766 (24VDC)

I/O Module: 5437 series (AI/AO), 5441 series (relays)

Actuators: Electronic governor, Automatic Voltage Regulator (AVR)

Software: ControlCore or SPM Toolkit

2. Compatible Systems

Fully compatible: NetCon 5000, MicroNet

Specifically compatible: WOODWARD 505/505E, 723/723+ control systems

VI. Quality and Service

Origin: USA (WOODWARD original factory)

Warranty: Refurbished / spare parts provided for 6-12 months warranty

Service: Module testing, parameter configuration, fault diagnosis, technical support