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5403-824

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5403-824
May 18, 2026

5403-824

WOODWARD 5403-824 is a high-performance digital speed controller belonging to the Woodward 2301A / 505 control family, designed for precise speed regulation and load control of steam turbines, gas turbines, diesel and gas engines in industrial power and mechanical drive applications. It adopts a microprocessor-based architecture with integrated analog and discrete I/O, accepting 4–20 mA or 1–5 Vdc speed/load setpoint signals from DCS or host systems. The controller provides isochronous (zero droop) and droop control modes, enabling stable parallel operation and isolated grid control. Built-in overspeed protection, fault diagnostics, and alarm functions ensure safe and reliable unit operation. With rugged industrial design, wide temperature tolerance, and strong vibration resistance, the 5403-824 is widely used in power generation, oil and gas, petrochemical, and industrial engine/turbine drive systems.

Description

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WOODWARD 5403-824

English Specification / Datasheet

General Description

WOODWARD 5403-824 is a high-performance digital speed controller belonging to the Woodward 2301A / 505 control family, designed for precise speed regulation and load control of steam turbines, gas turbines, diesel and gas engines in industrial power and mechanical drive applications. It adopts a microprocessor-based architecture with integrated analog and discrete I/O, accepting 4–20 mA or 1–5 Vdc speed/load setpoint signals from DCS or host systems. The controller provides isochronous (zero droop) and droop control modes, enabling stable parallel operation and isolated grid control. Built-in overspeed protection, fault diagnostics, and alarm functions ensure safe and reliable unit operation. With rugged industrial design, wide temperature tolerance, and strong vibration resistance, the 5403-824 is widely used in power generation, oil and gas, petrochemical, and industrial engine/turbine drive systems.

Main Features

  1. Precise isochronous speed control and droop load control for single or multiple prime movers

  2. Accepts 4–20 mA / 1–5 Vdc external setpoint signals for remote speed/load adjustment

  3. Two selectable control modes: zero-droop (constant speed) and droop (load sharing)

  4. Built-in overspeed trip protection and comprehensive fault diagnosis & alarm

  5. Adjustable high/low speed limits and start-up fuel/actuator position limiting

  6. Industrial-grade design: wide operating temperature, high shock and vibration resistance

  7. Compact panel-mount enclosure, easy installation and field commissioning

  8. Compatible with electro-hydraulic actuators and common DCS communication interfaces

Technical Parameters

  • Model: 5403-824

  • Series: Woodward 2301A / 505 digital controller

  • Applicable equipment: Steam turbine, gas turbine, diesel engine, gas engine

  • Control modes: Isochronous (zero droop), droop

  • Setpoint input: 4–20 mA / 1–5 Vdc

  • Power supply: 24 VDC ±10%

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

  • Installation: Cabinet panel mount

  • Protection: Overspeed trip, fault alarm, self-diagnosis

  • Application industries: Power generation, petrochemical, oil & gas, industrial drive

Application Scope

The WOODWARD 5403-824 is used for automatic speed regulation, load control, and safety protection of industrial steam turbines, generator sets, compressor drive turbines, and engine-driven equipment in electric power, petroleum, chemical, and other industrial fields.


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