Product Description: Woodward 5461-088 Digital Microprocessor Controller

Product Model: 5461-088

Brand: Woodward

Product Type: Industrial-grade high-precision synchronous controller / Digital speed regulation module

I. Product Overview

The Woodward 5461-088 is a high-performance microprocessor control module of the 5461 series, designed specifically for three-phase AC generator sets, steam turbines, gas turbines, and engine control systems. Its core functions include automatic synchronization, speed regulation, load distribution, and voltage matching. It is a key control component in industrial power generation, oil and gas, ships, and petrochemical fields.

Core Positioning: Generator set automatic synchronizer + Speed/Load Closed-loop Controller

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

Compatible Systems: Woodward 505/723/MicroNet/NetCon series, compatible with AVR, DCS, PLC systems

II. Core Technical Parameters

1. Electrical Specifications

Power Supply Voltage: 24 VDC ±10%

Power Consumption: Typical 8 W, Maximum 12 W

Digital Input: 8 isolated discrete inputs (24 VDC)

Analog Input: 4 4–20 mA / 1–5 VDC selectable (accuracy ±0.05%)

Analog Output: 2 4–20 mA isolated outputs (load 0–750 Ω)

PWM Output: Low current PWM drive signal (actuator / electro-hydraulic converter)

Communication Interfaces:

RS-232 (programming / monitoring)

RS-422 (remote IO / upper computer)

Support Modbus RTU protocol

2. Mechanical and Environment

Size: 150 × 90 × 35 mm

Weight: Approximately 0.5 kg

Installation Method: DIN rail / panel installation

Operating Temperature: -40°C ～ +85°C

Storage Temperature: -55°C ～ +90°C

Protection Grade: IP54 (panel)

Vibration / Shock Resistance: MIL-STD-810G military standard

EMC Protection: IEC 61000-6-2/4 industrial-level anti-interference

3. Control Performance

Control Accuracy: Speed ±1 RPM; Load ±0.1%; Synchronization Phase Difference < 0.5°

Regulation Mode: No-difference speed regulation (constant speed), Differential speed regulation (differential speed)

Synchronization Function: Automatic frequency, phase, voltage triple matching

Load Distribution: Parallel unit load distribution accuracy < 1%

Control Cycle: 1 ms (high-speed closed-loop)

Protection Functions: Over-speed, Under-speed, Overcurrent, Overload, Mis-synchronization, Communication Fault Protection

III. Main Functional Characteristics

Dual Mode Operation

Programming Mode: Parameter configuration, protection threshold setting, communication address setting

Operation Mode: Real-time control, synchronous grid connection, load distribution, fault diagnosis

Fully Automatic Synchronization (Core)

Real-time detection of grid frequency, voltage, phase

Automatic adjustment of generator speed and excitation to achieve synchronous grid connection

Support for automatic / manual synchronization dual mode

Speed and Load Control

Single / Multiple units at constant speed / differential speed operation

Base load, island operation, grid-connected with base / differential mode

4–20 mA external setpoint signal control

Protection and Diagnosis

Multiple fault protection (over-speed, under-speed, overcurrent, overload, mis-synchronization)

100 historical fault records + event log

LED status indication + remote monitoring

Compatibility

Compatible with Woodward electro-hydraulic actuators, I/H converters, 20/25 series speed regulators Compatible with AVR, DCS, PLC and third-party control systems

IV. Typical Application Scenarios

Industrial power generation: Stand-alone power plants, cogeneration units synchronization and control

Oil and gas: Speed regulation of gas turbines / compressor stations, long-distance pipeline drive

Ships: Main propulsion steam turbines / generator sets control

Petrochemicals: Steam turbine drive for pumps, fans, compressors

Power plants: Steam turbine DEH auxiliary control, small steam turbines speed regulation

V. Product Advantages

High precision: ±0.05% measurement / control accuracy

High reliability: Wide temperature range, shock-resistant, fanless design, MTBF > 500,000 hours

Easy integration: Standard interfaces, plug-and-play, full series compatibility

Strong adaptability: Hazardous area certification, maritime certification, industrial EMC standards

Easy maintenance: Local programming, remote diagnosis, parameter backup / restoration

VI. Model Description

5461: Serial number (precision control module)

088: Hardware version (24 VDC, dual serial ports, synchronous dedicated, enhanced PWM output)

VII. Ancillary Accessories

Programming cable: RS-232 straight connection

Installation bracket: DIN rail snap-in

Terminal block: 24-pin industrial-grade connector

Software: Woodward ToolKit configuration software