WOODWARD 5439-966 Product Detailed Description

Product Model: WOODWARD 5439-966

Brand: WOODWARD (Woodward)

Product Type: NetCon 5000 / MicroNet Series Digital Controller Module / Electro-hydraulic Converter

Generation Time: 2026-05-18 11:05:41

I. Product Overview

WOODWARD 5439-966 is a high-performance digital speed/electro-hydraulic control module, specifically designed for industrial steam turbines, gas turbines, and engine control systems. It integrates microprocessor control and electro-hydraulic signal conversion functions. It can be used as an independent speed controller or as an electro-hydraulic driving unit for control systems such as 505, 723, etc., converting high-precision electronic control signals into hydraulic driving force to achieve precise positioning and adjustment of valves and actuators. 

II. Core Functional Characteristics

Dual-mode Control: Supports independent speed control (505 mode) and electro-hydraulic signal conversion (I/H) dual functions.

High Precision Adjustment: Speed control accuracy ±1rpm, position control accuracy ±0.1%, response time < 10ms.

Electro-hydraulic Drive: Directly drives servo valves / proportional valves, with an output of 0-250mA control current, suitable for various electro-hydraulic actuators.

Full Signal Compatibility: Supports multiple types of speed signals such as pulses, magnetic resistance, MFT, etc.; 4-20mA/1-5VDC analog I/O.

Dual Redundancy Design: Dual speed sensor inputs, dual control outputs, redundant backup for critical circuits.

Multi-level Protection: Built-in over-speed, over-current, short circuit, stall, sensor failure, power loss full protection.

Hot Swap Compatibility: Supports online maintenance, safe module replacement during system operation.

Industrial Grade Reliability: Wide temperature, shock-resistant, dustproof, and moisture-proof design, suitable for extreme industrial environments.

Programming Configuration: Supports parameter setting, control curve, and protection threshold programming through panel / software.

Status Diagnosis: Real-time operating status, fault codes, LED for signal quality and communication diagnosis.

III. Technical Specifications

1. Electrical Parameters

Power Supply: 24 VDC ±10%, power consumption ≤ 18W

Speed Input: 2 channels differential pulse / magnetic resistance sensors, 1-100kHz

Analog Input: 4 channels 4-20mA / 1-5VDC (16 bits)

Control Output: 2 channels 0-250mA (servo valve drive)

Digital I/O: 8 channels DI (24VDC), 6 channels DO (relay)

Communication Interface: RS-485 / Modbus RTU

Control Cycle: ≤ 10ms

Accuracy: Speed control ±1rpm, position ±0.1%

Isolation: Input / Output / Power three-terminal electrical isolation (2500V AC)

2. Physical and Environmental

Size (W×H×D): 144 mm × 72 mm × 122 mm

Weight: Approximately 0.8 kg

Installation: Standard DIN rail or rack slot

Operating Temperature: -40°C ~ +85°C

Storage Temperature: -55°C ~ +90°C

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

Shock Resistance: Complies with MIL-STD-810F

Protection: IP20

4. Certification and Status

Certification: CE, UL, ATEX, SIL-2

Product Status: Active (In Service)

Alternative Model: 5439-927 (Precision Control Module)

IV. Typical Application Scenarios

Steam Turbine Control: Independent 505 speed regulation, electro-hydraulic converter drives main steam valve / regulating valve.

Gas Turbine Control: Speed adjustment, fuel valve servo drive, anti-surge control.

Engine Speed Regulation: Diesel / gas engine constant speed, load distribution, synchronous grid connection.

Compressor Control: Centrifugal / reciprocating compressor speed / pressure closed-loop, anti-surge.

Power Generation System: Steam / gas generator speed regulation, synchronous grid connection control.

Industrial Process: Petrochemicals, power, metallurgy, papermaking high-precision electro-hydraulic control.

Ship Power: Marine steam turbine / engine electro-hydraulic speed regulation system.

V. System Configuration and Compatibility

1. Supporting Modules

Power Module: 5439-766 (Main Power Supply), 5439-800 (Auxiliary)

Rack: 5439-861 (12-slot standard rack)

CPU Module: 5435-xxx (NetCon Main Controller) I/O Module: 5437-xxx Series Analog/Digital Expansion Module

2. Compatible Systems

NetCon 5000 / MicroNet Full Series

WOODWARD 505 / 505E Turbine Controller

WOODWARD 723 / 723+ Digital Controller

Third-party DCS Systems (via Modbus RTU)

VI. Quality and Service

Origin: USA (WOODWARD Original Factory)

Warranty: 12 Months

Service: Parameter Setting, System Debugging, Fault Diagnosis, Technical Training