Woodward 8200-1302 505D Digital Governor Turbine Control

Key Features

  • Integrated Graphical HMI: 8.4‑inch color display enables real‑time trending, alarm visualization, and intuitive navigation; multilingual support simplifies global operation.
  • Marine & Hazardous Compliance: ATEX Zone 2 and IACS UR E10 ratings allow deployment in offshore platforms, LNG carriers, and commercial marine vessels.
  • Auto‑Start Sequencing: Configurable hot/cold start routines with temperature input integration to optimize start‑up time and turbine stress.
  • Redundant Speed Sensing: Dual speed channels validate input integrity; zero‑speed detection and peak speed indication for overspeed trip confirmation.
  • Critical Speed Avoidance: 3 programmable speed bands to bypass resonant frequencies and prevent turbine damage during acceleration/deceleration.
  • Advanced Load Control: Remote droop, frequency dead‑band, and slip‑frequency synchronization for grid/load matching and stable parallel operation.
  • Event Logging & Diagnostics: Real‑time clock (RTC)‑stamped trip/alarm logs; self‑diagnostics for I/O, speed sensors, and communication faults.
  • Hot‑Swappable Configuration: Parameter changes and firmware updates via HMI or RemoteView without system shutdown.
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Description

Technical Specifications

Parameter Details
Product Series 505D Digital Governor Turbine Control
Power Supply 18–36 Vdc isolated low‑voltage supply; 25 W max power consumption
Operating Temperature -30°C to 70°C (-22°F to 158°F); storage: -30°C to 70°C (-22°F to 158°F)
Speed Sensing 2 redundant channels; supports MPUs, eddy‑current probes, proximity sensors; 0–32 kHz input frequency
Speed Accuracy ±0.05% of rated speed
HMI Interface 8.4‑inch color LCD; multilingual support; real‑time trending; configurable tag names
I/O Configuration 8×4–20 mA analog inputs (loop‑powered); 10 external alarm inputs; 10 external DI trip inputs; 8×Form‑C relay outputs; 2×4–20 mA control outputs
Communication Modbus RTU (RS485)/TCP; Woodward RemoteView for remote monitoring/control
Certifications ATEX Zone 2; IACS UR E10 (marine); EN 61000‑6‑2 EMC; IP54 front panel; Pollution Degree 3
Physical Form Factor Panel‑mount; 230 mm × 170 mm × 70 mm; weight approx. 1.8 kg (4 lb)
Safety Functions Overspeed trip (peak speed indication); zero‑speed detection; 3‑band critical speed avoidance; 2‑out‑of‑2 voting for trip logic

Functional Capabilities

  • Speed & Load Dynamics: Dual speed/load control loops with adjustable gain and response time for fast transient recovery.
  • Trip & Alarm Management: 10 dedicated alarm and 10 trip inputs with configurable logic; Form‑C relays for hardwired safety shutdowns.
  • Synchronization: Slip‑frequency synchronization with phase/voltage matching; sync check and time monitoring to prevent grid‑disturbing connections.
  • Overspeed Protection: Peak speed indication for post‑trip analysis; configurable overspeed setpoints (105–115% of rated speed).
  • Remote Operation: Modbus integration enables SCADA connectivity; RemoteView supports remote monitoring, parameter tuning, and data download.
  • Zero Speed & Load Unloading: Zero‑speed detection for start‑up validation; soft unloading and power‑limit functions to protect turbine components.

Application Scenarios

  • Marine Steam Turbines: Main propulsion and auxiliary power control for commercial ships, LNG carriers, and offshore support vessels (IACS UR E10 compliant).
  • Hazardous Area Power Generation: Steam turbines in refineries, chemical plants, and offshore platforms (ATEX Zone 2 certified).
  • Industrial Steam Turbines: Process steam turbines in pulp/paper mills, steel plants, and district heating systems requiring precise speed/load control.
  • Cogeneration (CHP) Systems: Load synchronization and grid parallel operation for combined heat and power plants.
  • Turbine Retrofits: Direct replacement for legacy 505 governors to upgrade HMI, control logic, and compliance without full system rework.
  • Emergency Backup Turbines: Standby power systems where reliable start‑up and load acceptance are critical for business continuity.

Configuration & Maintenance

  • HMI‑Driven Setup: 3 operational modes (configuration, operation, calibration) accessible via password‑protected HMI for secure parameter changes.
  • Speed Input Calibration: Auto‑calibration for MPU/eddy‑current probes; speed range configurable from 250 to 80,000 rpm.
  • Communication Setup: Modbus RTU/TCP parameters (baud rate, parity, address) configurable via HMI; supports daisy‑chaining with other 505D units.
  • Firmware Updates: Flash‑based memory allows in‑field updates via service port or Ethernet; preserves configuration during updates.
  • Spare Replacement: Front‑panel mount design enables quick replacement; pre‑configured parameters can be loaded via USB or RemoteView.
  • Diagnostics: Front‑panel LEDs and HMI alerts indicate power, speed input health, communication status, and alarm/trip conditions for rapid troubleshooting.
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