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