Product Description: Woodward 5462-085 Electro-hydraulic Converter / Communication Module

Product Model: 5462-085

Brand: Woodward

Product Series: 500 Series Industrial Control Module

I. Product Overview

The Woodward 5462-085 is a composite module that integrates electro-hydraulic signal conversion (I/H) and communication interface functions. It serves as an interface unit between the control system (such as 505/505E controller) and the hydraulic actuator, accurately converting electronic speed control signals into hydraulic control signals, and providing data communication capabilities between systems. It is a key component of steam turbine, gas turbine, and engine-driven electro-hydraulic control systems.

Core Functions: Electro-hydraulic signal conversion, communication protocol conversion, signal isolation, data transmission

Applicable Objects: Steam turbines, gas turbines, engine-driven electro-hydraulic actuators

Product Form: Modular composite component, standard rail / frame installation 

II. Core Technical Parameters

1. Electrical Specifications

Power Supply: 24 VDC (18–32 VDC)

Signal Input: PWM control signal (from 505/505E controller)

Communication Interface: Supports industrial protocols such as Modbus, with electrical isolation function

Isolation Level: Full electrical isolation, resistant to industrial electromagnetic interference

Weight: Approximately 0.90 kg

2. Hydraulic Specifications

Hydraulic Medium: Turbine oil, hydraulic oil (in accordance with ISO VG32/46 standards)

Pressure Range: 0.2–1.0 MPa (standard), up to 2.1 MPa

Flow Output: Linear flow output, matching electro-hydraulic servo mechanism

Response Time: ≤ 10 ms (signal to hydraulic output)

Linearity: ≤ ±0.1% (full scale)

3. Mechanical and Environmental

Operating Temperature: -40°C ～ +70°C

Protection Level: IP54 (splash-proof, dust-proof)

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

Vibration / Shock: Compliant with MIL-STD-810 standard

III. Main Functional Characteristics

High Precision Electro-hydraulic Conversion

Microprocessor Control, converting PWM electrical lines linearly into hydraulic flow / pressure signals.

Control Accuracy: ±0.1%, fast dynamic response, suitable for rapid regulation requirements of steam turbines.

Built-in Zero Position / Range Calibration Function, convenient on-site debugging.

Dual Isolation Protection

Full Electrical Signal Isolation: Prevents interference between control system and hydraulic system.

Hydraulic / Electrical Physical Isolation: Avoids oil leakage damaging electronic components, high safety.

Communication and Integration Capability

Supports Modbus and other communication protocols, can interact with DCS/PLC systems in real time.

Standard 24VDC Power Supply, compatible with all Woodward series controllers.

Plug-and-play Design, compatible with mainstream control systems such as 505/505E.

Industrial-grade Reliable Design

Wide Temperature, High Resistance to Vibration, suitable for harsh industrial environments such as power plants and petrochemicals.

No mechanical wear components, MTBF > 1,000,000 hours.

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

IV. Typical Application Scenarios

Steam Turbine Control System: 505 controller → 5462-085 → Electro-hydraulic Actuator → Main Steam Valve / Control Valve

Industrial Engine Speed Regulation: Engine Controller → Electro-hydraulic Conversion → Fuel Actuator

Compressor / Pump Group Drive: Electro-hydraulic Control Loop for Steam Turbine Driving Compressor Unit

Power Plant / Petrochemical System Upgrade: Upgrade of old hydraulic control systems, compatible with digital electronic controllers

Industrial Power Station: Combined Heat and Power, Waste Heat Power Generation Steam Turbine Control

V. Product Advantages

Comprehensive Function: Electro-hydraulic Conversion + Communication Interface integrated, saving space and cost.

Precise and Stable: Microsecond-level response, thousandth-level accuracy, meeting high-precision speed regulation requirements.

Safe Isolation: Dual electrical / physical isolation, strong system safety and anti-interference.

Seamless Compatibility: Perfectly matches Woodward 505/505E and third-party DCS systems.

No Maintenance: No mechanical wear, long-term stable operation, low maintenance cost.

VI. Model Code Interpretation

5462: Base series number of Woodward 500 control module

085: Hardware configuration code (electro-hydraulic converter + communication module, 24VDC, isolated type, standard hydraulic interface, industrial-grade wide temperature)

VII. Standard Accessories

Connection Cables: Shielded signal cables, hydraulic connection hoses

Installation Accessories: DIN rail, installation bracket, fixing screws

Calibration Tools: Zero Position / Range Calibration Software (ToolKit)

Sealing Parts: Hydraulic Interface Sealing Gasket