WOODWARD 5453-278 Product Detailed Description

Product Model: WOODWARD 5453-278

Brand: WOODWARD (Woodward)

Product Type: Multi-function Processor Module / Redundant Control CPU (Multi-function Processor Module)

Generation Time: 2026-05-18 11:47:21

I. Product Overview

WOODWARD 5453-278 is a high-performance redundant central processor module for the MicroNet Plus / NetCon 5000 control system. It is specifically designed for high-reliability, uninterrupted switching, and redundant control of critical turbine machinery such as steam turbines, gas turbines, and compressors. It is a core component for achieving safety-critical control. 

II. Core Functional Characteristics

Redundant Architecture: Supports 1:1 hot redundancy, dual CPUs running synchronously, seamless switching (switching time < 1ms).

High-speed Control: 32-bit processor, control cycle minimum 1ms, meeting the high-speed dynamic response requirements of steam turbines / gas turbines.

Full Function Integration: Speed control, load control, anti-surge protection, sequence control, overspeed protection integrated.

Dual Communication Ports: Two independent RS-232 / RS-422 ports, support Modbus RTU, redundant communication.

High-Precision Signal Processing: Built-in 16-bit ADC/DAC, analog signal accuracy ±0.02%.

Magnetic-Electric Sensing: Compatible with MPU magnetic-electric speed sensors, adaptive signal conditioning.

PWM Driving: 3 isolated PWM outputs, directly drive electro-hydraulic actuators (I/H converter).

Event Recording: Non-volatile memory, records 1000 + events, faults, start-stop logs.

Hot Swap: Supports online replacement, without interrupting system operation.

Industrial Grade Reliability: -40°C ~ +70°C wide temperature range, Class I Div II explosion-proof certification.

III. Technical Specifications

1. Processor and Memory

CPU: 32-bit RISC industrial processor

SRAM: 8MB

Flash: 16MB (program / data storage)

Real-time Operating System: Special RTOS, task scheduling accuracy 1ms

2. Communication Interfaces

Serial Port 1: RS-232 (programming / debugging)

Serial Port 2: RS-422 (remote IO/Modbus)

Internal Bus: MicroNet high-speed backplane bus (redundant)

Protocols: Modbus RTU, Woodward proprietary protocol

3. Input/Output Signals

Speed Input: 2 channels differential MPU (magnetic-electric sensors)

Analog Input: 8 channels 4-20mA / 1-5V (16-bit, isolated)

Analog Output: 3 channels PWM / 4-20mA (drive actuators)

Digital I/O: 16 channels DI / 8 channels DO (board-mounted, 24VDC)

Redundant Interface: Redundant synchronous port (dual CPU data synchronization)

4. Physical and Environmental

Size (W×H×D): 195 × 132 × 45 mm

Weight: Approximately 0.90 kg

Operating Power Supply: 24 VDC (18-30 VDC)

Power Consumption: Maximum 15 W

Operating Temperature: -40°C ~ +70°C

Storage Temperature: -55°C ~ +85°C

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

Protection Grade: IP20

5. Product Status

Product Status: Discontinued (Out of Production)

Alternative Model: 8440-1051 (New Generation MicroNet Plus Redundant CPU)

Comparison within Series:

5453-278: Redundant Main CPU (Out of Production)

5450-106: Non-redundant CPU (Out of Production)

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

IV. Typical Application Scenarios

Power Generation Industry: Steam turbine / gas turbine power generation units, back-pressure steam turbines, combined cycle power plants redundant control.

Petroleum and Chemical Industry: Long-distance pipeline compressors, oilfield injection gas turbines, catalytic cracking main fans, anti-surge control.

Marine Power: Marine gas turbine / steam turbine propulsion systems, marine power generation units redundant control.

Industrial Drive: Blast furnaces fans, oxygen production air compressors, high-speed, high-reliability control of pump groups. Data Center: Emergency Gas Turbine Generator Set, Parallel Control of Uninterruptible Power Supply.

V. System Configuration and Compatibility

1. Essential Components

Rack: 5437-843 (12-slot MicroNet Plus redundant rack)

Power Module: 5439-766 (Redundant 24VDC System Power Supply)

I/O Module: 5441-695 (AI/AO), 5441-889 (DI/DO), 5441-697 (CPU Expansion)

Redundancy Module: 5453-278 (Another one, forming 1:1 redundancy)

2. Compatible Systems

Fully Compatible: MicroNet Plus, NetCon 5000 Redundant Control System

Downward Compatible: MicroNet Simplex Non-Redundant System

Special Compatible: WOODWARD 505/505E Steam Turbine Controller

VI. Quality and Service

Origin: USA (WOODWARD Original Factory)

Warranty: Refurbished / Spare Parts Provided for 12 Months Warranty

Service: Redundancy Configuration, Program Download, Parameter Setting, Fault Diagnosis, System Debugging