Woodward 505E User Manual

Installation and Operation Manual
505E Digital Governor
for Extraction Steam Turbines
Volume 1
Manual 85018V1B

Woodward 505E Specifications

General

Brand	Woodward
Model	505E
Category	Control Systems
Language	English

Summary

Chapter 2. Installation Procedures

Enclosures, Mounting, and Wiring Practices

Input/Output Interfaces and Communications

Describes analog/digital I/O, actuator outputs, relays, serial communications, and Modbus wiring.

Chapter 3. 505E Control Description

Ratio/Limiter Configurations and Decoupling

Details ratio/limiter configurations, decoupling, and turbine operation modes.

Turbine Start Procedures and Speed Control

Explains turbine start modes, sequences, and speed control functionality.

Advanced Control Functions

Covers synchronization, loadsharing, extraction/admission, cascade, and auxiliary controls.

Chapter 4. Configuration Procedures

Configuring Core Control Parameters

Details configuration for Turbine Start, Speed Control, and Operating Parameters.

Configuring Advanced Control and I/O

Covers driver, analog/contact inputs, function keys, relays, and communications setup.

Steam Map Configuration

Chapter 5. 505E Operation

Turbine Startup and Speed Control Operation

Details startup procedures, idle/rated, auto start, and speed control operation.

Key Control Screens and Adjustments

Overspeed Test Procedure

Chapter 6. Communications

Modbus Communication Protocol

Modbus Frame Structure and Function Codes

Modbus Address Mapping and Data Tables

Provides detailed Modbus addresses for registers and coils for communication.