Product Description: Woodward 5462-338 Digital Speed Control and Synchronization Controller

Product Model: 5462-338

Brand: Woodward

Product Series: 500 Series

Product Type: Digital Speed Controller / Microprocessor Synchronization Control Module

I. Product Overview

The Woodward 5462-338 is a high-performance, integrated digital speed control and automatic synchronization controller specifically designed for industrial steam turbines, gas turbines, and engine-driven power generation units. It integrates speed control, automatic synchronization, load distribution, and multiple protection functions, serving as the core control unit for achieving single-machine constant speed or multi-machine parallel grid-connected operation.

Core Functions: Closed-loop speed control, automatic grid synchronization, isochronous / droop load distribution, frequency / voltage regulation, overspeed protection

Applicable Objects: Steam turbines, gas turbines, diesel/gas engines, power generation units

Product Form: Modular circuit board, standard rack installation 

II. Core Technical Parameters

1. Electrical Specifications

Power Supply: 24 VDC (18–32 VDC)

Speed Input: Dual MPU electromagnetic sensors (differential input)

Control Output: Low current PWM signal (for driving electro-hydraulic actuators)

Communication Interface: Dual independent serial ports (RS-232 + RS-422), optional Modbus RTU protocol

Safety Level: Hardware independent overspeed protection, SIL2 safety level

Explosion-proof Certification: Class I, Div. 2 hazardous area certification

2. Mechanical and Environmental

Operating Temperature: -40°C ～ +85°C

Protection Level: IP65

Installation Method: 19-inch standard rack

Size: 120mm × 80mm × 35mm

Weight: Approximately 0.45 kg

3. Control Performance

Control Mode: Speed control, equal time / droop load distribution, automatic synchronization

Speed Regulation Accuracy: ≤ ±0.02%

Synchronization Accuracy: Frequency difference ≤ ±0.01 Hz, phase difference ≤ ±2°

Control Cycle: Microsecond-level high-speed closed-loop operation

Protection Functions: Multiple levels of overspeed protection, sensor failure, actuator failure, power loss protection

III. Main Functional Characteristics

High Precision Speed and Synchronization Control

32-bit microprocessor, supports ** isochronous (Isochronous) / droop (Droop) ** dual-mode control.

Full Automatic Synchronization Capture: Automatically matches voltage, frequency, and phase to achieve zero-risk grid connection.

Multi-unit Parallel: Precise load distribution, up to 32 units can be connected in parallel.

Comprehensive Safety Protection Mechanism

Hardware-level Overspeed Protection: Independent circuit, response time < 10ms, not dependent on software.

Full Signal Electrical Isolation: Strong resistance to industrial electromagnetic interference (EMI/RFI).

Built-in Overcurrent, Short Circuit, Reverse Connection Protection.

Powerful Communication and Diagnosis

Dual serial ports (RS-232/422) + optional Modbus, seamless integration into DCS/PLC systems.

Real-time Self-Diagnosis, Status Monitoring, Data Recording Function.

Support for Remote Configuration, Debugging, and Firmware Upgrade.

Industrial-grade Reliable Design

Wide Temperature, High Vibration Resistance, Long-life Components, suitable for harsh environments such as power plants, petrochemicals, and offshore platforms.

Plug-and-play, compatible with Woodward 505/505E full series and electro-hydraulic actuators.

Multi-level Password Protection to prevent unauthorized parameter modification.

IV. Typical Application Scenarios

Industrial Steam Turbine Control: Drive compressors, pumps, fans, turbine expanders

Power Generation / Combined Heat and Power: Speed regulation, grid connection, load control of steam / gas turbine generators

Multi-unit Parallel Power Station: Parallel power supply of diesel / gas turbine generators, load management

Smart Microgrid: Coordinated control of distributed energy systems

Renovation of Old Units: Replace traditional mechanical / hydraulic speed regulators to achieve digital upgrade

V. Product Advantages

All-in-One Control: Speed regulation + synchronization + load control + protection integrated functionality.

Precise Synchronization: Sub-millisecond synchronization accuracy, ensuring safe grid connection of units.

Stable and Reliable: Hardware-level protection + full isolation design, industrial-grade long-term stable operation.

Easy Integration: Standard interfaces + full-function diagnosis, efficient and convenient system integration and maintenance.

Wide Compatibility: Perfectly compatible with Woodward 505/505E and third-party speed control systems.

VI. Model Code Interpretation

5462: Base series number of Woodward 500 series controller

338: Special model for speed regulation + synchronization + load control (24VDC, dual serial ports, PWM output, wide temperature, hazardous area certification, IP65 protection) 5462-338 Controller Module - 1 unit

Installation bracket and fixing screws

Product certificate and warranty card

Download authorization for configuration software (ToolKit)