๐ Product Introduction
The Woodward 505XT is a digital turbine control system designed for steam turbine applications, including single-valve, extraction, and admission configurations. Part number 8200-1311 is the HV-STD version, supporting AC/DC input power in the 88โ264 VAC or 90โ150 VDC range.
The controller provides turbine speed control, valve demand control, limiting functions, auxiliary and cascade control, extraction/admission control, monitoring, alarms, and shutdown functions. It is intended for integration with the turbine actuator, speed sensing system, plant instrumentation, and emergency shutdown circuitry.
This specific listing identifies the unit as part number 8200-1311, Revision L, with a used โrunner takeoutโ condition. The listed country of origin is Poland.
๐ Product Datasheet
| Parameter | Value |
|---|---|
| Brand | Woodward |
| Model | 505XT (HV-STD) |
| Series | 505XT Digital Turbine Control |
| Product Name | Steam Turbine Control Governor |
| Part Number | 8200-1311 |
| Revision | Rev L |
| Application | Steam Turbine Control |
| Power Supply | 88โ264 VAC or 90โ150 VDC |
| Country of Origin | Poland |
| Condition | Used / Runner Takeout |
Dimensions and weight: The exact dimensions and shipping weight should be confirmed from the physical unit or applicable Woodward installation documentation before installation. Do not assume dimensions or weight from a marketplace listing.
โ๏ธ Operating Specifications and Use
The 505XT is normally installed as the primary digital control for a steam turbine. It receives speed and process signals, executes the configured control logic, and generates actuator demand to regulate turbine operation.
Typical functions include:
- ๐ Turbine speed control
- ๐๏ธ Governor valve demand control
- ๐ Load and auxiliary control
- ๐ Extraction/admission control
- ๐ก๏ธ Inlet and exhaust pressure control
- โก Generator-related control functions
- ๐จ Alarm and shutdown management
- ๐ง Actuator calibration and stroking
- ๐ก Ethernet and service communications
- ๐ก๏ธ Overspeed test and turbine protection functions
The 505XT documentation covers single-valve, extraction, admission, and related steam-turbine configurations.
๐ ๏ธ Operating Procedure
Before applying power, verify that the controller part number, revision, power supply, actuator type, speed sensors, I/O wiring, and turbine application configuration match the project requirements.
- Inspect the controller for physical damage, loose terminals, contamination, or signs of overheating.
- Confirm the incoming supply is within the specified 88โ264 VAC or 90โ150 VDC range.
- Verify protective grounding and field wiring.
- Confirm speed-sensor and actuator wiring.
- Verify emergency shutdown and trip circuits.
- Apply power and allow the controller to complete its startup sequence.
- Check the Home/Operation screen and review alarms and shutdown indications.
- Verify speed feedback before enabling turbine operation.
- Confirm valve demand and actuator response during commissioning.
- Start the turbine only after all configured permissives and plant safety conditions are satisfied.
The 505XT has dedicated configuration, calibration, operating, alarm, and shutdown functions; commissioning should follow the applicable Woodward manual and the turbine manufacturer’s procedures.
๐ Power-On / Power-Off Sequence
Power-On
โก 1. Check plant safety conditions
Make sure the turbine is in a safe state and emergency shutdown circuits are healthy.
๐ 2. Verify supply voltage
Confirm the available AC/DC supply corresponds to the HV-STD controller specification.
๐ฅ๏ธ 3. Energize the 505XT
Apply control power and wait for the controller to complete its boot process.
๐ 4. Check controller status
Review LEDs, display status, alarms, I/O status, and shutdown status.
๐๏ธ 5. Verify actuator and speed feedback
Confirm that the controller receives valid signals before attempting turbine startup.
โถ๏ธ 6. Start according to the configured turbine start procedure
Do not bypass permissives or protection functions.
Power-Off / Shutdown
๐ 1. Perform a controlled turbine shutdown
Use the configured stop/shutdown procedure rather than removing controller power while the turbine is operating.
๐ 2. Confirm turbine speed has reached the required stopped condition.
๐ 3. Verify valve/actuator position and shutdown status.
โก 4. Remove control power only when permitted by the plant procedure.
โ ๏ธ Never use controller power removal as a substitute for a normal turbine shutdown or emergency trip procedure.
๐ Product Usage Notes
The controller configuration is application-specific. Before replacing an existing 505XT, record the installed configuration, I/O assignments, actuator parameters, speed-sensor settings, control setpoints, communication settings, and software/firmware information.
For a replacement installation, compare the existing unit’s part number and revision carefully. Woodward documentation identifies 8200-1311 as the HV-STD 505XT configuration and specifies its AC/DC power range.
The 505XT also provides configuration and service functions for actuator calibration and testing. These functions should be performed only when the turbine is secured and the mechanical system can safely tolerate valve movement.
โ Common Questions & Answers
Q: What is the Woodward 505XT 8200-1311 used for?
A: It is a digital control system for steam turbine applications, providing speed, valve, load, pressure, extraction/admission, monitoring, and protection-related control functions.
Q: What does HV-STD mean for this model?
A: The 8200-1311 is the high-voltage standard version. Its specified input power range is 88โ264 VAC or 90โ150 VDC.
Q: Is 8200-1311 suitable for extraction turbines?
A: Yes. The 505XT platform supports extraction and admission turbine applications when correctly configured for the turbine system.
Q: Can 8200-1311 be used directly as a redundant 505XT controller?
A: No. The standard simplex 505XT part numbers should not be treated as redundant controllers. Woodward specifies separate 505DR part numbers for redundant applications.
Q: What should be checked before replacing an existing controller?
A: Check the exact part number, revision, supply voltage, application configuration, actuator type, I/O wiring, speed inputs, and software/configuration compatibility.
Q: What is the condition of the referenced unit?
A: The referenced listing identifies it as used and describes it as a โRunner Takeout.โ
Q: Is Revision L important when purchasing a replacement?
A: Yes. Hardware revision and compatible software/footprint requirements should be checked before replacement. Woodward documentation specifically identifies revision-dependent software/footprint requirements for 8200-1311.
๐ Recommended Woodward Series / Models
- Woodward 505
- Woodward 505XT
- Woodward 505DR
- Woodward 505HT
- Woodward 505D
- Woodward Peak 200
- Woodward Flex500
- Woodward 723PLUS
- Woodward MicroNet Plus
- Woodward Vertex-Pro
These products cover different turbine-control, engine-control, and industrial control applications. Woodward’s industrial turbine documentation also lists the 505, 505XT, 505DR, 505HT, Peak200, and Flex500 product families.
