Product Description: Woodward 5462-336 Digital Speed Controller

Product Model: 5462-336

Brand: Woodward

Product Series: 500 Series

Product Type: Digital Speed Controller / Microprocessor Synchronizer

I. Product Overview

The Woodward 5462-336 is a high-performance digital speed control and synchronization controller designed specifically for industrial steam turbines, gas turbines, and engine-driven power generation units. It integrates functions such as speed control, automatic synchronization, load distribution, frequency/voltage regulation, and overspeed protection, making it the core control unit for achieving single-machine constant-speed operation or multi-machine parallel grid connection.

Core Functions: Closed-loop speed control, automatic synchronous grid connection, 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: IP20 (standard), optional IP65

Installation Method: 19-inch standard rack

Weight: Approximately 1.0 kg

Size: Approximately 160mm × 160mm × 45mm

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 / Droop dual-mode control.

Full automatic phase synchronization capture: Automatically matches voltage, frequency, and phase to achieve zero-risk grid connection.

Multi-machine Parallel: Precise load distribution, up to 32 units of generators can be parallelly operated.

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 functions.

Support for remote configuration, debugging, and firmware upgrade.

Industrial-grade reliable design

Wide temperature range, high vibration resistance, long service life components, suitable for harsh environments such as power plants, petrochemicals, and offshore platforms.

Plug-and-play, compatible with Woodward 505/505E 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 / cogeneration: Speed regulation, grid connection, load control of steam / gas turbine generators

Multi-machine 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

336: Special model for speed regulation + synchronization + load control (24VDC, dual serial ports, PWM output, wide temperature range, hazardous area certification)

VII. Standard Packaging List 5462-336 Controller Module - 1 unit

Installation bracket and fixing screws

Product certificate and warranty card

Download authorization for configuration software (ToolKit)