Original Woodward 505D digital turbine governor unit for steam‑gas turbine speed and load control system.

Product Overview

8200‑1302 is Woodward 505D digital governor controller, integrates HMI display, keypad, control logic and multi‑channel I/O circuit. It executes turbine speed regulation, load control, critical‑speed avoidance, auto‑start sequence and overspeed protection logic, supports dual redundant speed sensor input. Complies with marine industrial certification, applicable for steam turbine, gas turbine and generator unit. Widely used as maintenance spare part for power plant, petrochemical and marine turbine control cabinets.

Key Features

• Integrated HMI display and keypad for local parameter setting, status monitoring and operation
• Dual redundant speed input, accepts magnetic pickup and proximity sensor signals
• Supports auto cold‑hot start sequence, three‑band critical‑speed avoidance function
• Multi‑channel configurable analog & discrete I/O for field sensor and actuator connection
• Built‑in alarm, trip logic with RTC time‑stamp event recording
• RS232 / RS485 Modbus RTU communication for remote configuration and data acquisition

• Marine‑grade hardware, anti‑vibration for power‑plant and ship‑board cabinet environment

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Technical Specifications

• Brand: WOODWARD
• Model: 8200‑1302
• Type: 505D Digital Turbine Governor Controller
• Power Supply: 18‑36VDC isolated power input
• I/O: 8 analog inputs, 2 analog outputs, multiple digital input & relay outputs
• Communication: RS232, RS485 Modbus RTU
• Protection Grade: IP54 front panel
• Operating Temp: ‑30℃ ~ +70℃
• Storage Temp: ‑40℃ ~ +85℃
• Humidity: 5‑95% non‑condensing

• Installation: Panel‑mount installation for control cabinet

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Compatibility

Works for steam turbine and gas turbine control application. Parameter configuration download, sensor loop inspection and function test required after replacement.