Woodward 8200-1311 505-XT – HVAC/DC, Ordinary Location
Woodward 8200-1311 505-XT – HVAC/DC, Ordinary Location
The Woodward 8200-1311 is a specialized digital governor from the 505XT series, designed for the comprehensive control and protection of industrial steam turbines.
As the high-voltage counterpart to the 8200-1310. this model is engineered for single-valve, single-extraction, or admission turbine applications.
It serves as the modern, high-performance successor to the legacy Woodward 505E, offering a superior graphical interface and advanced “OptiTune” adaptive PID technology.
Technical Parameter Table
| Feature | Specification |
| Model Number | 8200-1311 |
| Series | 505XT (Extended Technology) |
| Power Supply | HVAC/DC (88–264 Vac / 90–150 Vdc) |
| Power Consumption | Approx. 50 VA / 40 W |
| Speed Input | 2 Passive MPUs or 2 Active Proximity Probes (0.5–32,000 Hz) |
| Analog Inputs | 8 Configurable Channels (4–20 mA) |
| Analog Outputs | 6 Programmable Channels (4–20 mA) |
| Discrete Inputs | 20 Configurable Contact Inputs |
| Relay Outputs | 8 Form-C Relays (Configurable) |
| Communication | 4 Ethernet Ports (Modbus TCP/IP, OPC), 4 CANOpen, 1 RS-232/422 |
| Operating Temp | –30 °C to +70 °C |
| Display | 8.4-inch High-Resolution Color LCD |
Product Advantages and Features
High-Voltage Versatility: Built-in power supply handles both AC and DC high-voltage ranges, eliminating the need for external transformers in many plant environments.
OptiTune™ Technology: Automatically analyzes the turbine’s dynamic response to calculate optimal PID settings, reducing commissioning time and improving stability.
Decoupled Control: Specifically designed to decouple the interaction between speed and extraction/admission headers, ensuring process changes don’t cause speed surges.
Maintenance-Friendly HMI: Features an 8.4″ screen with real-time trending, a graphical steam map, and “First-Out” indication for rapid troubleshooting of trips.
Sulfur-Resistant Coating: Includes conformal coating to protect internal electronics from harsh industrial atmospheres (Class G3 environment).
Unique Product Description
The Woodward 8200-1311 functions as a “Single-Box” solution for complex turbine logic.
While standard governors only manage speed, the 8200-1311 manages the entire thermodynamic cycle of an extraction turbine.
It acts as a bridge between the physical turbine and the digital plant, translating complex steam physics into a user-friendly graphical interface.
Its unique ability to provide bumpless transfer between control modes (e.g., from speed control to pressure control) ensures that your process remains uninterrupted even during sensor failures.
Application Cases
Combined Heat and Power (CHP): Managing turbines that provide both electrical power and process steam for district heating or industrial use.
Paper and Pulp Mills: Precise control of extraction steam used in drying rollers while maintaining stable generator frequency.
Refineries: Controlling turbo-expanders and large compressor drives where high reliability is non-negotiable.
Food & Beverage: Managing steam admission for large-scale sterilization and cooking processes.
Installation and Maintenance
Mounting: Flush-mount design for control panels. It is recommended to leave at least 4 inches of clearance behind the unit for wiring and cooling.
Wiring: Use un-pluggable terminal blocks (included) for easy replacement. High-voltage power lines must be separated from low-level signal cables to prevent noise.
I/O Expansion: If 8 analog inputs are insufficient, the 8200-1311 can be expanded via LinkNet-HT modules through the CANOpen ports.
Firmware Updates: Settings can be backed up or updated using Woodward’s RemoteView or AppManager software via the Ethernet ports.
Other Models in the Same Series
Model Series Power Supply Location
8200-1310 505XT LVDC (18–36 Vdc) Ordinary Location
8200-1312 505XT LVDC (18–36 Vdc) Hazardous Location (ATEX/IECEx)
8200-1301 505D HVAC/DC Ordinary (Single Valve only)
8200-1331 505DR HVAC/DC Drawer Mount Version