WOODWARD 5460-796 Product Detailed Description

Product Model: WOODWARD 5460-796

Brand: WOODWARD (Woodward)

Product Type: 505 Series Digital Turbine Governor

Generation Time: 2026-05-18 11:53:35

I. Product Overview

WOODWARD 5460-796 is a 505 series high-performance microprocessor speed control controller, specifically designed for single/double actuator steam turbines and power generation units. As an enhanced version of 5460-735, its core advantages lie in the strengthened grid synchronization function and more comprehensive I/O configuration, enabling speed control, load regulation, automatic synchronous grid connection, and comprehensive protection. It is the standard control solution for industrial steam turbines and power systems. 

II. Core Functional Characteristics

Dual-mode Control: Supports speed control (constant speed) and load control (constant power), capable of seamless switching.

Advanced Grid Synchronization: Built-in microprocessor synchronizer (PWM output), achieving automatic frequency, phase, and voltage matching, supporting automatic grid connection.

Dual Actuator Drive: Independently controls two hydraulic / pneumatic actuators, suitable for single-valve / double-valve steam turbines.

Comprehensive Protection Logic: Multiple levels of protection such as overspeed, under-speed, vibration, shaft displacement, low oil pressure, high exhaust temperature, etc., ensuring equipment safety.

Dual Independent Communication Ports: RS-232 + RS-422 dual serial ports, supporting programming, monitoring, and DCS remote communication.

Local / Remote Programming: LCD panel + keys for local operation, or through GAP software for remote configuration on a computer.

Industrial-grade Reliability: Class I, Div 2 explosion-proof certification, suitable for hazardous industrial environments.

Hot-swappable Design: Supports online maintenance, reducing system downtime.

III. Technical Specifications

1. Control Core

Control Object: Steam Turbine (Single / Double Valve), Steam Turbine Generator Set

Control Mode: Speed Control, Load Control, Critical Speed Automatic Crossing

Speed Range: Programmable (Typical 0–15,000 RPM)

Accuracy: ±1 RPM

Control Algorithm: PID + Feedforward + Dynamic Gain Adaptive Adjustment

2. Input Output

Speed Input: 2 MPU Electromagnetic Speed Measurement (15–250 kHz)

Analog Input: 4 channels of 4–20 mA (Pressure, Temperature, Power Feedback)

Analog Output: 2 channels of 4–20 mA (Actuator Drive Signal)

Synchronization Output: PWM Pulse (Generator Automatic Synchronization)

Digital I/O: 16 channels of DI / 8 channels of DO (Relay / Transistor)

Communication Interface: RS-232, RS-422 (GAP, Modbus Protocol)

3. Electrical and Environmental

Power Supply: 24 VDC (Range 18–32 VDC)

Power Consumption: 18 W

Operating Temperature: -40°C ~ +70°C

Protection Grade: IP20

Explosion-proof Certification: Class I, Div 2

Weight: Approximately 0.90 kg

4. Product Status

Product Status: Discontinued

Alternative Model: 5466 Series (505D/505E)

Comparison within the Series:

5460-796: Enhanced Version, with Advanced Synchronization Function, for Generator Sets

5460-735: Standard Version, Basic Speed Control, Universal Type

5460-xxx: 505 Series (Gas Turbine / Engine Specialized)

IV. Typical Application Scenarios

Steam Turbine Generator Set: Automatic Synchronization Connection + Speed / Load Control + Load Distribution

Industrial Steam Turbine: Drives Compressors, Pumps, Fans, etc. Rotating Equipment

Combined Heat and Power: Extraction / Back-pressure Steam Turbine Integrated Control

Petroleum Chemicals: Safe, Stable, and Efficient Operation of Process Steam Turbines

Marine Power: Marine Steam Turbine Main Propulsion / Power Generation Control

V. System Configuration and Compatibility

1. Essential Supporting Components

Actuators: Electro-hydraulic Converter (IP25 Series), Servo Valve

Speed Sensor: MPU Electromagnetic Probe (723 Series)

Connection Cable: Specialized Shielded Communication / IO Cable

Programming Software: WOODWARD GAP Programming / Monitoring Software

2. Compatible Systems

Independent Control: Single-unit Steam Turbine / Generator System

DCS Integration: Access to Factory DCS via Modbus/RS-485 Redundant configuration: Scalable 505R redundant system (dual controller hot standby)

VI. Quality and Service

Origin: USA

Warranty: 12-month warranty for refurbishment / spare parts

Technical services: Parameter configuration, program upload/download, fault diagnosis, on-site debugging