Product Description: Woodward 5461-944 Digital Speed Controller

Product Model: 5461-944

Brand: Woodward

Product Series: 505 Series High-performance Digital Speed Controller

I. Product Overview

The Woodward 5461-944 is an all-in-one speed control and synchronization controller based on a microprocessor, designed for industrial engines, steam turbines, and gas turbine-driven power generation units. It integrates high-precision speed regulation, automatic grid synchronization, load distribution, and multi-level safety protection functions, making it the core equipment for achieving stable control of prime movers and safe grid connection of power generation units.

Core Functions: Speed control, load regulation, automatic synchronization, frequency / phase matching, safety protection

Applicable Models: Diesel engines, gas engines, steam turbines, gas turbines

Product Form: Modular controller, standard 19-inch cabinet / rail-mounted installation

II. Core Technical Parameters

1. Electrical Specifications

Power Supply: 24 VDC (18–32 VDC)

Speed Signal Input:

Dual redundant MPU electromagnetic sensor signals (differential input)

Frequency Range: 0–15 kHz

Analog Input: 4–20 mA / 1–5 VDC (remote speed / load setting)

Control Output:

Low current PWM output (direct drive electro-hydraulic converter I/H)

Multi-channel relay output (alarms, shutdown, synchronization status)

Analog Feedback Output: 4–20 mA

Communication Interface: Dual independent serial ports RS-232 + RS-422

Safety Certification: Class I, Div 2 Explosion-proof Certification

2. Mechanical and Environmental

Operating Temperature: -40°C ～ +70°C

Protection Grade: IP20 (installed in cabinet)

Installation Method: Standard 19-inch rack / 35mm DIN rail

Anti-vibration / Impact Resistance: Compliant with MIL-STD-810 military standard

Weight: Approximately 0.6 kg

3. Control Performance

Control Modes:

Speed Control

Load Control

Automatic Synchronization Control

Isochronous / Droop

Speed Regulation Accuracy: ≤ ±0.01%

Synchronization Accuracy: Frequency ≤ ±0.01 Hz, Phase ≤ ±1°

Protection Response: Overspeed Protection Action Time < 10 ms

Protection Functions:

Two-stage Overspeed Protection (103% / 110% rated speed)

Sensor Fault, Actuator Fault, Communication Fault Diagnosis

Power Overvoltage, Undervoltage, Reverse Connection Protection

III. Main Functional Characteristics

High Precision Speed Regulation and Synchronization

Supports dual-mode operation of no-difference / difference regulation, suitable for single unit / grid connection / parallel operation.

Built-in fully automatic synchronizer, automatically matches grid frequency, phase, and voltage to achieve precise grid connection in one click.

Optimized control algorithm for engines, steam turbines, and gas turbines.

Flexible Signals and Communications

Supports 4–20mA / 1–5V remote analog setting, compatible with various DCS/PLC systems.

Dual independent serial ports (RS-232/422), supports Modbus protocol, facilitating remote monitoring and debugging.

Dual MPU Speed Signal Redundancy, ensuring stable critical feedback signals.

Industrial-grade reliable design Class I, Division 2 explosion-proof certification, suitable for hazardous environments such as oil and gas fields and chemical industries.

Wide temperature range, high vibration resistance, fully isolated electrical system, adaptable to harsh industrial sites.

Hardware-level overspeed protection, independent of software logic, with a higher safety level.

Rich control functions

Supports advanced functions such as load distribution, soft loading/unloading, idle control, and start-up fuel limit.

Local button operation + remote Toolkit software, efficient and convenient parameter configuration and fault diagnosis.

Four. Typical application scenarios

Diesel / gas generator sets: engine speed regulation, load control and automatic synchronous grid connection

Industrial steam turbines: cogeneration, waste heat power generation steam turbine speed and safety control

Oil and gas field power equipment: gas turbine / engine-driven pumps, compressor units control

Ships / mobile power stations: offshore platforms, ship generator sets speed regulation and protection systems

Self-owned power plants / distributed energy: enterprise self-owned power stations, biomass / garbage incineration power generation control

Five. Product advantages

Multi-purpose: perfectly compatible with various prime movers such as engines, steam turbines, and gas turbines.

Synchronous expert: fully automatic high-precision synchronization, significantly reducing the difficulty and risk of grid connection.

Stable and reliable: military-grade wide temperature range, redundancy, and isolation design, MTBF > 1,000,000 hours.

Flexible integration: dual serial ports + standard analog signals, easy to connect to various control systems.

Maintenance simple: local operation + remote software, efficient and intuitive parameter configuration and fault diagnosis.

Six. Model code interpretation

5461: Woodworth 500 series controller base model number

944: Hardware configuration code (505 type, with fully automatic synchronization, dual actuator drive, dual serial ports, 24VDC, explosion-proof, wide temperature range, engine-specific optimization)

Seven. Standard accessory packages

Speed sensor: dual-channel MPU electromagnetic speed probe

Connection cable: shielded signal cable, serial communication cable

Software tool: Woodward ToolKit configuration and debugging software

Installation accessories: standard 35mm DIN rail, installation bracket