Product Description: Woodward 5461-641 Dynamic Storage Module / Speed Control Board

Product Model: 5461-641

Brand: Woodward

Product Type: Industrial Control Module, Dynamic Memory Board, Generator Set Speed Controller

I. Product Overview

The Woodward 5461-641 is a high-performance dynamic storage and speed control module of the 5461 series, designed specifically for steam turbines, gas turbines, diesel/gasoline engines, and three-phase AC generator sets. It integrates high-speed data storage, system parameter management, event logging, and speed closed-loop control functions. It is the core component of Woodward 505/505E/505H, 723, and 501 control systems, widely used in power generation, oil and gas, ships, and petrochemical industries, ensuring system data security and control accuracy.

Core Positioning: Dynamic Data Storage + System Parameter Management + Event Logging + Speed Control

Design Standards: Industrial-grade wide temperature range, shock resistance, EMC protection, Class I, Division 2 hazardous area certification

Compatible Systems: Woodward 505, 505E, 505H, 723, 501, NetCon, MicroNet control systems

II. Core Technical Parameters

1. Electrical Specifications

Power Supply Voltage: 24 VDC ±10%

Power Consumption: Typical 7 W, Maximum 10 W

Storage Characteristics: Large-capacity dynamic memory (Dynamic Memory), non-volatile storage, data retention without battery

Data Capacity: Can store control programs, configuration parameters, set values, and 200+ system events and fault logs

Communication Interfaces:

RS-232 (Programming / Data Upload/Download)

RS-422 / RS-485 (System Bus / Remote Communication)

Support Modbus RTU Protocol

Control Signals:

Analog Input: 4–20 mA / 1–5 VDC (Speed / Load Setting)

Digital Input: 12 isolated discrete quantities (24 VDC)

Control Output: PWM Signal (Drive Actuator / Electro-hydraulic Converter)

Control Cycle: 1 ms (High-speed Closed-loop Control)

2. Mechanical and Environment

Size: 145 × 85 × 35 mm

Weight: Approximately 0.90 kg

Installation Method: DIN Rail Installation / Cabinet Panel Installation

Operating Temperature: -40°C ～ +85°C

Storage Temperature: -55°C ～ +90°C

Shock/Impact Resistance: Compliant with MIL-STD-810G Military Standard

EMC Protection: IEC 61000-6-2 / IEC 61000-6-4 Industrial-level Anti-interference

3. Control Performance

Speed Control Accuracy: ±1 RPM

Regulation Mode: No-difference Speed Control (Constant Speed Mode), Differential Speed Control (Differential Mode)

Load Distribution Accuracy: Parallel Units < 1%

Data Retention: Parameters and logs are permanently saved after power loss (≥ 10 years)

Protection Functions: Over-speed, Under-speed, Overcurrent, Overload, Short Circuit, Misstep, Communication Fault Protection

III. Main Functional Characteristics

Large-capacity Dynamic Storage (Core Function)

Store control programs, configuration parameters, set values, PID regulation curves

Record 200+ historical events and fault logs (with timestamp)

Support Parameter Backup / Restoration, Online Program Update, Data Upload/Download

Non-volatile Storage, No Backup Battery Required, Data Never Lost After Power Loss High-precision speed control

Single/multi-unit constant speed / differential speed dual-mode operation

Support for island operation, grid connection operation, base load, and various differential speed scenarios

4–20 mA external analog signal remote setting of speed / load

Automatic avoidance of critical speed, soft start / soft shutdown control

Data management and diagnosis

Real-time monitoring of system status, storage of critical operation data

Self-diagnosis of faults, LED status indication, remote monitoring and alarm

Event log query, fault traceability, operation data analysis

System compatibility

Directly compatible with Woodward 505/505E/505H, 723, 501 controllers

Support for integration with DCS, PLC, AVR, and third-party control systems

Suitable for electro-hydraulic actuators, I/H converters, 20/25 series speed regulators

Four. Typical application scenarios

Industrial power generation: Stand-alone power station, cogeneration unit control system data storage and speed control

Oil and gas: Gas turbine / compressor station control, long-distance pipeline drive system

Ships: Main propulsion steam turbine / generator control, ship power system

Petrochemical: Steam turbine-driven pumps, fans, compressors control

Power plant: Steam turbine DEH auxiliary control, small steam turbine (pump steam turbine) control

Five. Product advantages

Super large storage: 200+ event logs, meeting long-term operation and fault traceability requirements

Highly reliable storage: Non-volatile dynamic storage, data permanently retained even in the event of power failure, no battery maintenance required

Precise control: ±1 RPM speed accuracy, constant speed / differential speed dual mode, suitable for all operating conditions

Industrial-grade durability: wide temperature range, shock resistance, fanless design, MTBF > 500,000 hours

Easy maintenance: local / remote programming, parameter backup / restoration, online upgrade

Strong compatibility: fully compatible with Woodward's mainstream control systems, seamless integration

Six. Model description

5461: Serial number (industrial control module series)

641: Hardware version / configuration code (dynamic storage dedicated, 24 VDC, 12-channel DI, PWM output, dual serial ports, Class I, Div 2 certification)

Seven. Ancillary equipment

Programming cable: RS-232 straight connection / USB to RS-232 adapter

Installation bracket: DIN rail clip / panel mounting bracket

Terminal block: 20-pin industrial connector

Software: Woodward ToolKit / 505 Toolbox configuration software