WOODWARD 5448-906 Product Details

Product Model: WOODWARD 5448-906 (REV: SPM-D10)

Brand: WOODWARD (Woodward)

Product Type: Generator Synchronization Manager / Digital Speed Controller (Load Sharing Module)

Generation Time: 2026-05-18 11:44:25

I. Product Overview

WOODWARD 5448-906 is a high-performance digital synchronization and load controller specifically designed for three-phase AC generators. As the core component of the generator control system, it mainly realizes automatic grid connection synchronization, precise load distribution, speed regulation, and voltage regulation functions, and is widely used in the parallel operation control of diesel/gas generator sets. 

II. Core Functional Characteristics

Fully automatic synchronization: Automatically detects grid frequency, phase, and voltage, achieving rapid, smooth, and impact-free grid connection.

Precise load distribution: Supports equal-time load distribution and droop control modes, ensuring precise distribution of active/reactive power among multiple units.

Speed/voltage regulation: Integrates speed control and voltage bias output, directly driving engine speed regulators and AVR.

Dual serial communication: Equipped with two independent serial ports (RS-232 and RS-422), supporting Modbus protocol, facilitating remote monitoring.

PWM signal output: Low current PWM output, precisely controlling actuators, with fast response speed.

Multiple protections: Built-in overcurrent, short circuit, out-of-step, reverse power, etc. protection functions.

Industrial-grade reliability: Wide temperature range, shock resistance, isolation design, and Class I Div II explosion-proof certification.

Hot-swappable: Supports online replacement without affecting system operation.

III. Technical Specifications

1. Electrical Parameters

Operating power supply: 24 VDC (18-30 VDC)

Power consumption: Maximum 10 W

Control output: 3 channels of analog/position output (speed/voltage bias)

Communication interface: RS-232, RS-422, Modbus

Signal accuracy: Phase synchronization error < ±0.5°, load distribution accuracy < ±1%

2. Physical and Environmental

Size: Approximately 250 x 150 x 70 mm

Weight: Approximately 1.2 kg

Operating temperature: -40°C ~ +70°C

Storage temperature: -55°C ~ +85°C

Humidity: 5% ~ 95% RH (no condensation)

Protection level: IP20

3. Product Status

Product status: Discontinued (Out of Production)

Alternative model: 8440-1070 (New Generation Synchronous Load Controller)

Comparison within the series:

5448-906: Synchronous/Load Controller (Out of Production)

5441-697: MicroNet CPU (Out of Production)

5441-889: Digital I/O Module (Out of Production)

IV. Typical Application Scenarios

Power plants / Backup power sources: Parallel operation of diesel/gasoline generator sets, load distribution, automatic synchronous grid connection.

Ships / Offshore platforms: Ship generator control, uninterruptible power supply, master-slave load distribution.

Petrochemicals: Oilfield power stations, gas turbine generator sets, compressor drive power supply.

Industrial plants: Self-owned power plants, multi-unit parallel operation, island operation control.

Data centers: UPS paralleling, emergency generator synchronous control.

V. System Configuration and Compatibility

1. Essential Supporting Components

Engine speed regulator: WOODWARD 505/505E, 723/723+

Voltage regulator (AVR): WOODWARD DGC-2000 series

Operator panel: Optional external human-machine interface (HMI)

2. Compatible Systems

Fully compatible: WOODWARD GENNET, MicroNet Control System

General compatible: Various industrial generators, diesel/gasoline engines

VI. Quality and Service

Origin: USA (WOODWARD Original Factory)

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

Service: Parameter configuration, synchronous debugging, fault diagnosis, technical support