9905-864 Product datasheet
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Model number: |
9905-864 |
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Module Type： |
Peak 150 Digital control |
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Manufacture: |
Woodward |
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Condition： |
Brand New |
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Range of Product: |
Peak 150 series |
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Lead time： |
In Stock |
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Weight: |
5.54kg |
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HS CODE： |
8537101190 |
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Dimension: |
48.3x33.5x11.5cm |
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MOQ: |
1 |
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Product Origin: |
USA |
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System： |
DCS |
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Discontinued on: |
Dec 31,2018 |
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Communication Service: |
Ethernet router |
9905-864 Functional Description
The 9905-864 from Woodward is a highly advanced PEAK 150 Digital Steam Turbine Controller, designed to provide precise and efficient control for steam turbines in industrial applications. One of the key features of the 9905-864 is its innovative ball bearing design, which significantly reduces friction. This reduction in friction enhances the precision of engine control, improving the overall performance of the turbine.
The 9905-864 is engineered to minimize heat buildup, a crucial factor in maintaining consistent performance over time. By reducing excess heat, the controller ensures more stable force and position repeatability, enhancing the reliability and efficiency of the steam turbine. This makes the 9905-864 particularly effective in environments where consistent operation is critical.
In addition to its superior design and performance, the 9905-864 offers seamless integration with other control systems, providing enhanced flexibility and operational control. Whether in power generation, oil and gas, or other industrial settings, the 9905-864 delivers optimized turbine control, ensuring better performance, energy efficiency, and extended equipment lifespan. The 9905-864 is a reliable solution for applications requiring precise, long-term turbine management.
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Peak 150 series Introduction
The Woodward Peak 150 series is a series of digital controls designed for single-valve and single-valve rack steam turbines driving a mechanical load. This series is compact and low-cost while also convenient and precise thanks to features like the front keypad/display and NEMA D rated motor. Models in this series are available with AC/DC or 24VDC power inputs, NEMA 4 or NEMA 4X enclosures, and optional Modbus protocol support.
Applications
The Peak 150 digital control is designed to control a steam turbine driving a mechanical load. It provides tight control of speed (NEMA D) and includes an input for a 4–20 mA remote speed control signal, which can be used for a process-generated input
Operation
The operation of the control is simple. To start the turbine, the steam-supply valve must be opened (manually or by other means). When the turbine comes up to the user-determined idle speed, the Peak 150 system takes control of the turbine—the steam-supply valve can then be opened fully. The Peak 150 control includes circuitry for detecting the loss of either MPU signal—this circuitry is automatically overridden for starting. The turbine can be accelerated from idle speed to minimum governor speed either automatically (by using the remote Idle/Min Gov contacts or by using the front panel start), or manually (by using the panel or remote Raise or Lower commands). to control the speed setting. Other features include dual speed control dynamics and overspeed trip test capabilities.
Setpoint Adjustments
Manual Mode
Turbine speed is adjusted solely by the front panel keys and the remote Raise and Lower discrete inputs. The Remote Speed setting analog input is ignored in this mode.
Remote Speed Set Mode
Turbine speed is determined by the Remote Speed Setting analog input. When the Remote Speed Setting Enable contact is closed and the turbine is at or above minimum governor speed, turbine speed will ramp from Min Gov Speed to the remote value at a user-defined rate. Once the speed setpoint output matches the setting of the Remote Speed Setting signal, the speed will change at a new user-defined rate for process control. If the Remote Speed Setting signal is disabled for any reason, the speed setpoint will remain at the last speed and the setpoint adjustment operates as it does in Manual Mode.
Combination Mode
This mode is similar to the Analog Remote Speed Set Mode, except that the speed demand generated by the discrete (front-panel and remote Raise and Lower contact inputs) and the analog Remote Speed Setting signalare compared for the highest value. This highest value is passed on as the commanded speed. If the Remote Speed Setting signal is disabled for any reason, control of the speed setpoint operates as it does in Manual Mode.
