Woodward Electronic Controls

     Electronic Controls for Steam Turbines


    5009FT Triple Modular Redundant (TMR) Fault Tolerant Steam Turbine Control

    Woodward’s 5009FT TMR controls industrial steam turbines of all sizes and types in system-critical applications requiring maximum reliability and availability. This steam turbine controller includes specifically-designed algorithms and logic to start, stop, control, and protect industrial steam turbines or turbo-expanders, driving compressors, generators, or pumps.

    Designed for today's plant standardization practices, the 5009FT control system's versatile program can be configured to control steam turbines that are:

    • single valve
    • single extraction
    • single admission
    • single extraction/admission

    The 5009FT control's unique PID structure makes it ideal for petrochemical or power generation applications where it is required to control steam plant parameters like:

    • compressor speed
    • generator frequency
    • turbine load
    • turbine inlet pressures
    • exhaust header pressures
    • tie-line power

    Learn more from the 5009FT product specification


    Fault-tolerant I/O handling and processing

    • Latent fault detection on relay outputs
    • Time-stamped alarms and trips
    • Discrete input time-stamp with 1 ms resolution
    • Analog input time-stamp with 5 ms resolution
    • Extensive fault detection and annunciation—including first-out indication
    • Critical speed avoidance (3 speed bands)
    • Auto start sequence (hot & cold starts)
    • Three sensors per critical parameter can be configured
    • Dual speed/load dynamics
    • Zero speed detection with proximity probe down to 0.5 Hz
    • Peak speed indication for overspeed trip
    • Automatic hand valve operation (using first stage pressure)
    • Independent Modbus® * communication links
    • Remote analog setpoints for all PIDs
    • CCT (Configuration & Commissioning Tool)—17” (43 cm) touchscreen engineering workstation for configuration, service, and Turbine operation.

    5009FT control functional capabilities:

    • Speed/frequency control
    • Turbine or generator load control/limiting
    • Extraction and/or admission header pressure control
    • Compressor control (optional add-on)
    • 1 or 2 loop
    • Anti-surge protection
    • Performance control
    • Turbine inlet header pressure control/limiting
    • Turbine exhaust header pressure control/limiting
    • Plant import/export power control/limiting
    • Isochronous load sharing between units (with EGCP-3 controls)
    • Any process directly related to unit load
    • Proportional or integrating Servo Position Control with LVDT/RVDT excitation (part number dependent)




    • Redundant power supplies with the following input options: 18–32 Vdc, 100–150 Vdc, 88–132 Vac (47–63 Hz), 180–264 Vac (47–63 Hz), 200–300 Vdc


    • 4 MPUs (1–30 Vrms) or proximity probes (24 Vdc and 12 Vdc power provided), 0.5 to 25 kHz

    Discrete Inputs:

    • 24 contact inputs 24 V (CE or UL) or 125 Vdc (UL only) (1 dedicated, 23 programmable)

    Analog Inputs:

    • 8 programmable 4–20 mA inputs (32 inputs with compressor control option)



    Valve/Actuator Drivers:  

    • 2 single-coil (proportional) or 2 dual-coil actuator outputs (4–20 mA or 20–160 mA), Optional—2 integrating ±200 mA max integrating actuator outputs with 2 LVDT or RVDT or 1–5 V or 4–20 mA position feedback inputs

    Discrete Outputs:

    • 12 relay outputs with latent fault detection (1 dedicated, 11 programmable)

    Analog Outputs:

    • 4 programmable 4–20 mA outputs (12 outputs with compressor control option)


    • Ethernet 6 10/100BaseT Ports (Modbus TCP or UDP & Service Tool communication)
    • Serial 3 Modbus (ASCII or RTU) communication ports (RS-232, 242, 285 compatible)

    Operating Conditions

    • Temperature 0 to 55 °C (32 to 131 °F) ambient air temperature range
    • Shock US MIL-STD-810C, method 516.2-1, procedure 1B
    • Vibration Lloyd’s ENV2 test #1
    • Emissions EN61000-6-4
    • Immunity EN61000-6-2

    Regulatory Compliance
    (Listings are limited only to those units bearing the appropriate Marking or Agency Identification)

    European Compliance for CE Marking:  

    • EMC Directive: 2004/108/EC
    • Low Voltage Directive: 2006/95/EC

    North American Compliance:  

    • CSA Certified for Ordinary Locations in the United States and Canada using CSA / UL 61010-1