2. General Description

3. Key Features

• Precision I/H Conversion: Translates 4–20 mA commands to solenoid drive currents

• Dual‑Coil Solenoid Drivers: For proportional or on‑off hydraulic valves

• Closed‑Loop Current Regulation: Ensures stable, accurate valve positioning

• 16‑Bit Resolution: High‑precision analog signal processing

• 2500 V Galvanic Isolation: Protects against EMI/RFI and ground loops

• Extended Temperature Range: −40 °C to +85 °C (operating)

• Hot‑Swap Capability: Online replacement without system shutdown

• Comprehensive Diagnostics: LED status indicators + fault logging

• Short‑Circuit & Overload Protection: On all drive channels

• Redundancy Support: Compatible with redundant governor systems

4. Technical Specifications

• Model: 5415-858

• Manufacturer: Woodward (USA)

• Compatible Governors: 505, 505E, 505XT

• Input Signals: 4–20 mA / 1–5 Vdc (from governor)

• Outputs: Dual solenoid drivers (24 Vdc, 2 A max per coil)

• Control Modes: Proportional, on‑off, or compensated regulation

• Communication: Modbus TCP/IP (diagnostics)

• Power Supply: 24 Vdc ±10% (18–32 Vdc), 50 W max

• Operating Temperature: −40 °C to +85 °C

• Storage Temperature: −40 °C to +85 °C

• Dimensions (W×H×D): 190 × 120 × 45 mm

• Weight: Approx. 1.3 kg

• Mounting: Standard 19” rack or panel mount

• Certifications: CE, RoHS, MIL‑STD‑810G

5. Applications

• Power Generation: Steam/gas turbine main valve control, speed/load regulation, overspeed protection

• Oil & Gas: Compressor drives, gas turbine generators, pipeline pumping stations

• Industrial Turbines: Combined‑cycle plants, CHP systems, mechanical drive applications

• Retrofit Projects: Upgrading legacy turbine controls with modern digital I/H converters

6. Ordering Information

• Part Number: 5415-858

• Description: Woodward 5415-858 Turbine I/H Converter & Dual‑Coil Solenoid Drive Module