Introduction to WOODWARD 8402-271
8402-271 Product Overview
The WOODWARD 8402-271 is a high-performance digital speed governing controller, a key model in the brand’s 8402 series tailored for industrial engines and turbines. It integrates advanced digital control algorithms, multi-channel signal processing, and built-in safety protection to deliver precise speed and load regulation for diesel engines, gas turbines, and steam turbines. Widely applied in power generation, oil & gas, and marine propulsion systems, it stabilizes generator speeds in backup power units, controls compressor rotation rates in oil pipelines, and ensures steady operation of ship main engines. Its rugged industrial-grade design features anti-vibration components and EMI shielding, adapting to harsh environments with extreme temperatures and electrical interference. Fully compatible with WOODWARD actuators and DCS systems, it supports flexible configuration via software and remote monitoring through standard communication protocols, enhancing operational efficiency and reliability.
8402-271 Technical Specifications
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Product Type: Digital speed governing controller (8402 series industrial model)
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Core Functions: Precision speed regulation, load adaptive control, overspeed/overload protection, fault self-diagnosis
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Application Compatibility: Diesel engines, gas turbines, steam turbines, industrial compressors, marine propulsion systems
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Input Configuration: 4-20mA speed setpoint input; 2×RPM feedback inputs; 8 discrete status inputs
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Output Configuration: 4-20mA actuator control output; 4 relay protection outputs; 0-10V status feedback
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Control Performance: Speed regulation accuracy ±0.1%; resolution 0.01%; response time <1 second
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User Interface: 2-line LCD display for real-time data; 4 tactile buttons for on-site parameter setting
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Communication Interface: RS-485 (Modbus RTU); CANbus for vehicle/marine applications
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Power Supply: 24VDC nominal; 18-36VDC wide input range; typical power consumption 15W
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Operating Environment: Temperature -25°C to +70°C; humidity 5%-95% (non-condensing); vibration resistance 2.5g (10-500Hz)
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Physical Traits: 317.5mm×254mm×165.1mm (L×W×H); weight ~2.5kg; panel mounting design
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Certifications: CE, UL certified; compliant with industrial control safety standards
Recommended WOODWARD Related Models
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WOODWARD 505E: Advanced turbine controller that pairs with the 8402-271 for comprehensive speed and load management.
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WOODWARD 9907-164: 505 series control module that coordinates with the controller for turbine speed regulation.
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WOODWARD Varistroke-DX: Electro-hydraulic actuator that executes speed control signals from the 8402-271.
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WOODWARD ProTech TPS: Turbine protection system that enhances the controller’s overspeed safety functions.
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WOODWARD 2301A: Cost-effective governor that complements the 8402-271 in small-scale generator sets.
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WOODWARD 8402-319: Sister model optimized for steam turbine-specific speed control applications.
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WOODWARD 8237-1597: Digital signal regulator that optimizes input signals for the 8402-271.
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WOODWARD APECS® 4500: Engine controller that integrates the 8402-271’s data for CHP system optimization.
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WOODWARD DPG 2200: Generator paralleling controller that uses the 8402-271’s signals to balance grid load.
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WOODWARD K-Series Actuators: Electric throttle units that respond to the controller’s speed control commands.
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WOODWARD 1712 EPG: All-in-one governing system with built-in speed control similar to the 8402-271.
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WOODWARD 5009 TMR: Triple-redundant controller that monitors the 8402-271’s output for critical safety.
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WOODWARD LinkNet-HT: Distributed I/O module that expands the 8402-271’s monitoring range.
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WOODWARD 9907-1200: Current-pressure converter that translates the controller’s signals to hydraulic valves.
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WOODWARD 8200-1312: Digital control module that pairs with the 8402-271 for multi-loop regulation.
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