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Home ⊙ ABB ⊙ WOODWARD 2301D‐ST Digital Load Sharing and Speed Control

WOODWARD 2301D‐ST Digital Load Sharing and Speed Control

From: | Author:kongjiang | Time :2024-11-20 | 1001 Browse: | 🔊 Click to read aloud ❚❚ ▶ | Share:

WOODWARD 2301D‐ST Digital Load Sharing and Speed Control

The 2301D-ST is a field-configurable control designed for single-valve steam turbine applications. 

This control is configurable to allow it to be easily applied in a diverse range of turbine applications. 

The control can be configured as a replacement for Woodward 2301A or 2301A LSSC controls, or for use within new turbine applications. 

The 2301D-ST includes the following basic turbine control functions: 

 Speed Control 

 Start Valve Ramp 

 Overspeed Protection 

 Shutdown Logic 

 Alarm Logic 

 Platform Diagnostics 

 Manual Start, Semi-Automatic Start, Automatic Start option 

 Self Powered Actuator option Alternatively, the following functions can be configured, depending on application requirements (I/O limitations may prohibit selecting all listed functions at once): 

 Process control 

 Critical Speed Avoidance logic 

 Remote Speed/Load setpoint 

 Droop/Isoch Control 

 KW/Actuator Droop 

 Load Sharing (with soft load/unload transfer) 

 SPM-A (Synchronizer) Input 

 Power Sensor Input (PTs & CTs) 

 ServLink (DDE)/Modbus Communications An integral RS-232 communications port allows users to interface with the 2301D-ST through industry-standard Dynamic Data Exchange (DDE) or Modbus based protocols. Alternatively a contact can be programmed to allow users to switch between protocols as desired. A hazardous location version is available.

The Woodward 2301D-ST is a microprocessor based control with integral application software designed for single-valve steam turbine applications. Like Woodward’s 2301A line of controls, this control is housed in a sheet-metal chassis and consists of a single printed circuit board. To facilitate unit retrofits, the 2301D-ST’s I/O terminals are located in the same general location as Woodward’s 2301A line of controls. This control is designed to perform the core control functions of a small steam turbine package. The application software is field configurable, allowing it to be configured and modified to meet site-specific requirements. With more I/O than its predecessor (the 2301A LSSC), the 2301D-ST control also has serial communications, allowing it to easily interface with the package PLC or plant DCS. The 2301D-ST is configured and serviced (dynamic adjustments made) via a laptop computer connected to the control’s RS-232 communications port. These configuration and dynamic settings are set, changed, tuned, and saved via a laptop computer and Woodward’s user-friendly Watch Window software program. This Windows® based PC program allows users to set and adjust all application-based parameters, plus upload and download configurations to and from the control.


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