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Woodward 8523-153
Product Overview
A microprocessor-based overspeed protection module for prime movers, designed to monitor shaft speed and trigger emergency shutdown in case of overspeed events. It features dual redundant speed inputs and fault-tolerant logic to ensure reliable protection for engines and turbines. The module’s compact, DIN-rail mountable design integrates seamlessly into control panels, providing high safety integrity for critical power generation equipment.
Detailed content
Technical Specifications
- Power Supply: 18–32 VDC (24 VDC nominal), 5.12 W
- Speed Inputs: 2 channels, compatible with magnetic pickup (MPU) signals
- Overspeed Setpoint: 100–120% of rated speed (programmable)
- Relay Outputs: 2 isolated relay outputs (250 VAC, 5 A resistive)
- Response Time: <100 ms trip time on overspeed detection
- Operating Temperature: -40 °C to +70 °C
- Protection Rating: IP30
- Dimensions: 120 mm × 80 mm × 25 mm
Functional Characteristics
- Dual redundant speed monitoring for enhanced safety
- Independent overspeed detection logic, separate from main control
- On-board self-diagnostics for sensor and circuit faults
- LED status indicators for power, fault, and trip conditions
- Non-volatile memory for event logging and fault history
- Field-programmable trip setpoints and time delays
Application Scenarios
Steam and gas turbines, industrial generator sets, marine propulsion engines, petrochemical compressors, and any prime mover requiring SIL-rated overspeed protection.
