General Specifications

• Brand: Woodward
• Model: 8200-1501
• Type: Digital governor controller with overspeed protection
• Input Voltage: 48V DC (±14%)
• Temperature Range: -40°C to +70°C (-40°F to +158°F)
• Mounting: Bulkhead or panel mount options available
• Certifications: Compliant with API 611 standards for steam turbine control systems
• Hazardous Location Rating: Certified for Class I, Division 2 environments (specific variant-dependent)

Key Features

1. Integrated HMI:
   • Full-color graphical display for real-time monitoring, configuration, and diagnostics.
   • Four tactile buttons for direct access to speed control, valve demand, alarms, and setup menus.
2. Control Capabilities:
   • Speed/Load Regulation: Adaptive PID control with configurable gains for stable operation under varying loads.
   • Cascade Control: Supports remote analog setpoints for integrating with upstream/downstream systems (e.g., process controllers).
   • Critical Speed Avoidance: Automatically avoids resonant frequency bands to protect the turbine.
   • Overspeed Protection: Built-in overspeed trip logic with configurable thresholds and test modes (internal/external).
3. I/O Configuration:
   • Digital Inputs: Up to 64 channels (24V DC compatible, with short-circuit protection).
   • Digital Outputs: Up to 32 channels (relay or solid-state outputs).
   • Analog Inputs: Supports 4-20 mA, RTD, and thermocouple signals for temperature/vibration monitoring.
   • Analog Outputs: 6 isolated 4-20 mA channels with fault monitoring (up to 600Ω load).
4. Communication Protocols:
   • Ethernet: For connectivity to DCS systems, remote monitoring, and firmware updates.
   • CANbus: High-speed communication for integration with auxiliary devices.
   • Modbus RTU/ASCII: Via RS-485 for legacy system compatibility.
   • RS-232: Debugging and local configuration through the service port.
5. Safety & Diagnostics:
   • Trip Logging: Stores the last 50 trips/alarm events and 20 overspeed events with timestamps.
   • Vibration/Bearing Monitoring: Configurable thresholds for alarms and shutdowns.
   • Self-Test Functionality: Automatic or manual tests of I/O, communication, and control logic.
   • Sulfur-Resistant Coating: Conformal coating protects against H₂S/SO₂ environments (IEC 721-3-3 Class 3C2).
6. User Interface & Configuration:
   • Front Panel: Intuitive menu-driven interface for on-site setup.
   • RemoteView Software: Allows remote monitoring and control via PC or mobile device.
   • Password Protection: Secures configuration parameters from unauthorized access.
7. Maintenance & Reliability:
   • Online Updates: Firmware and parameter changes can be applied without turbine shutdown.
   • Modular Design: Easy replacement of I/O modules during operation.
   • Non-Volatile Memory: Preserves settings and logs during power outages.

Applications

• Industrial Steam Turbines: Small single-valve or single-valve rack turbines driving pumps, compressors, or fans.
• Turboexpanders: Energy recovery systems in oil & gas, petrochemical, and power generation.
• HVAC Systems: Steam-driven chillers and cogeneration plants.

Ordering Information

• Part Number: 8200-1501
• Availability: New units in stock (lead time: 5-7 days from Xiamen, China).
• Payment: T/T, PayPal, or Western Union.
• Shipping: DHL, FedEx, or EMS (global delivery).

Documentation

• Original Instructions Manual: 195-page guide covering installation, configuration, and troubleshooting.
• Safety Certifications: Compliance with API 611, IEC 61508 (SIL-rated variant-dependent), and NEC Class I, Div. 2.