WOODWARD 5415-625 is a solenoid driver & electro‑hydraulic (I/H) converter module for steam turbines, designed to work with the Woodward 505/505E digital governors. It converts electronic control signals from the governor into precise hydraulic pressure to regulate turbine steam valves, serving as a key interface between electrical control and hydraulic actuation in power generation and industrial plants.
General Description
The 5415-625 is a compact, rack‑mounted solenoid control and I/H converter that accepts command signals from a Woodward 505/505E controller. It drives hydraulic solenoids to modulate steam turbine inlet valves, providing accurate speed/load regulation. The module includes on‑board diagnostics, short‑circuit protection, and LED status indicators. It supports 4–20 mA analog commands and integrates with standard turbine control systems for both new installations and retrofits.
Main Features
Solenoid driver + I/H converter for steam turbine control
Direct interface with Woodward 505/505E digital governors
4–20 mA analog command input from governor
Short‑circuit & overload protection for solenoid coils
LED status indicators for power, fault, and activity
Rack‑mount compact design for industrial cabinets
Galvanic isolation between control and power circuits
Robust construction for harsh power‑plant environments
Technical Parameters
Model: 5415-625
Type: Solenoid Driver / Electro‑Hydraulic (I/H) Converter Module
Compatible Controllers: Woodward 505 / 505E Digital Governors
Command Input: 4–20 mA analog
Solenoid Output: Regulated current drive
Power Supply: 24 VDC ±10%
Operating Temperature: -20 °C to +60 °C
Storage Temperature: -40 °C to +85 °C
Dimensions (W×H×D): 120 × 80 × 35 mm
Weight: Approx. 0.5 kg
Installation: Standard 19” rack mount
Certifications: CE, RoHS compliant
Application Scope
Used exclusively in steam turbine control systems to convert 505/505E governor commands into hydraulic pressure for steam valve actuation. Typical applications include power plants, refineries, and petrochemical facilities for turbine speed/load control, overspeed protection, and startup/shutdown sequencing.
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