Key Features

• Dual control modes: Isochronous (zero droop) for standalone constant‑speed operation; droop control for grid parallel and load sharing.

• High accuracy: Speed regulation ±0.25%; adaptive PID; speed input 0.5–32,000 Hz.

• Flexible setpoint: Accepts 4–20 mA or 1–5 Vdc analog signals for remote speed/load setpoint.

• Comprehensive I/O: 2 × MPU/proximity speed inputs; 8 analog in (4–20 mA), 20 discrete in; 2 actuator out (4–20/200 mA), 8 relay out.

• Integrated protection: Overspeed trip, critical speed avoidance, soft start, valve limiting; 15 fault shutdown + 15 alarm inputs with first‑out logging.

• Communications: RS‑232/RS‑485 (Modbus RTU/ASCII); password‑protected configuration.

• Rugged design: IP20 enclosure; –40 °C to +70 °C; CE/UL certified; SIL2 capable.

Specifications

• Brand/Model: Woodward 5463-140 (505 Series)

• Power supply: 18–32 VDC (24 VDC nominal)

• Speed input: 2 × MPU/proximity, 0.5–32,000 Hz

• Analog I/O: 8 × 4–20 mA in; 2 × 4–20/20–200 mA out

• Discrete I/O: 20 × in; 8 × relay out (5 A/24 VDC)

• Communication: RS‑232/485, Modbus RTU/ASCII

• Operating temperature: –40 °C to +70 °C

• Certifications: CE, UL, SIL2

Applications

• Turbines: Steam/gas turbine speed/load control and overspeed protection.

• Generators: Diesel/gas gen‑sets, islanded/grid‑connected power plants.

• Compressors: Industrial compressors in oil & gas and process industries.