2. General Description

• Part Number: 5432-039

• Manufacturer: Woodward (USA)

• Product Type: Digital Turbine Governor / Controller

• Application: Steam turbines (single/dual actuator), turbine‑driven gensets, compressors

• Control Core: 32‑bit microprocessor, programmable logic

• Control Modes: Speed (isochronous/droop), load, pressure, or process control

• Signal Interface: Analog (4–20 mA / 1–5 Vdc), discrete 24 Vdc I/O

• Compatibility: Woodward 505/505E systems, I/H converters, hydraulic actuators

• Mounting: Panel or DIN rail (industrial enclosure)

• Certifications: CE, UL, RoHS, Class 1 Div 2 (hazardous areas)

3. Key Features

• Steam Turbine Optimization – Designed for single/dual actuator steam turbines

• Precision Speed Regulation – Isochronous (0 droop) or droop mode for grid/island operation

• Integrated I/H Conversion – Converts 505 control signals to hydraulic actuator commands

• Turbine Protection – Overspeed, underspeed, overpressure, trip logic, fault alarms

• Flexible Control Modes – Speed, load, inlet pressure, or process parameter control

• Dual Actuator Support – Manages governor and intercept valves (if equipped)

• Industrial‑Grade Reliability – −40 °C to +70 °C, shock/vibration resistant

• Configuration Software – Woodward ToolKit for setup, tuning, and monitoring

4. Technical Specifications

• Part Number: 5432-039

• Power Supply: 24 Vdc ±10%, 40 W max

• Speed Range: 0–12,000 RPM (configurable via software)

• Control Accuracy: ±0.01% speed regulation, ±0.1 Hz frequency accuracy

• Analog Inputs: 4 × 4–20 mA / 1–5 Vdc (speed, load, pressure, setpoint)

• Analog Outputs: 2 × 4–20 mA (actuator command, monitor)

• Digital Inputs: 8 × 24 Vdc (start/stop, trip, mode, alarms)

• Relay Outputs: 6 × relay (5 A, 250 Vac) – trip, alarm, control

• Actuator Drive: Direct interface to Woodward I/H converters and hydraulic actuators

• Operating Temperature: −40 °C to +70 °C

• Dimensions: 160 × 110 × 50 mm (W×H×D)

• Weight: Approx. 1.2 kg (2.6 lbs)

• Enclosure: Industrial metal, conformal coated

5. Applications

• Industrial Steam Turbines – Single/dual actuator turbine speed/load control

• Turbine‑Driven Gensets – Grid‑parallel or islanded power generation

• Compressor Drives – Oil/gas, petrochemical, pipeline compressors

• Process Turbines – Refineries, chemical plants, pulp/paper mills

• Hazardous Locations – Class 1 Div 2 areas (refineries, offshore platforms)

6. Ordering Information

• Part Number: 5432-039

• Description: Woodward 5432-039 Digital Steam Turbine Governor/Controller, 24 Vdc, Single/Dual Actuator Support, Isochronous/Droop Speed Control, 4–20 mA I/O, for Industrial Steam Turbines & Turbine‑Driven Gensets/Compressors