Digital guide
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Woodward 8200-1302
Product Name: Woodward 8200-1302 505D Digital Governor (LVDC, Hazardous Locations)
Product Introduction: A microprocessor‑based digital speed controller for steam turbines, designed as a drop‑in replacement for legacy 505/505E systems. It is certified for ATEX Zone 2 hazardous locations and features advanced adaptive control and comprehensive communication.
Technical Specifications:
- Power Supply: 18–36 VDC (low‑voltage DC)
Detailed content
- Speed Input: Dual redundant MPU inputs (100–24,950 Hz)
- I/O: 8 analog inputs, 20 discrete inputs, 2 × 4–20 mA analog outputs, 8 Form‑C relay outputs
- Communication: RS‑232, RS‑422, Ethernet (Modbus TCP), RemoteView support
- Operating Temp: −40°C to +85°C; Humidity: 5%–95% non‑condensing
- Compliance: ATEX Zone 2, CE, RoHS, marine certifications
Functional Features:
- Adaptive OptiTune PID algorithm for precise speed control (±0.05% accuracy)
- Automatic start sequencing (hot/cold start) and critical speed avoidance
- Integrated graphical HMI with multi‑language support and real‑time trend logging
- Comprehensive turbine protection: overspeed trip, low vacuum, thrust bearing wear
- Field‑configurable via Woodward ToolKit software
Application Scenarios:
- Single‑valve steam turbines driving generators, pumps, compressors
- Hazardous Zone 2 locations in oil/gas, petrochemical, and marine industries
- Cogeneration plants and industrial process steam systems
- Retrofit of legacy 505/505E turbine control systems
