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WOODWARD 9905-860｜Digital Control Unit｜
Woodward 9905-864 is a Peak 150 series digital steam turbine controller used for speed and load control of single valve/single valve frame turbines, supporting AC/DC power supply and NEMA 4X protection. It is available for purchase from the original factory.
Core parameters
Type: Peak 150 Digital Steam Turbine Controller
Power supply: 90-150 VDC or 88-132 VAC (47-63 Hz)
Speed measurement: 2-channel magnetic resistance probe, high signal preferred, starting from 1 Vrms/200 Hz
Input: 1 remote speed setting (4-20 mA/1-5 VDC), 8 discrete inputs
Output: 2 analog signals (4-20/0-1 mA), 1 actuator output (4-20/0-200 mA), 4 relays
Communication: RS-422 Diagnosis and Calibration
Protection: NEMA 4X
Temperature: -40~70 ℃
Core functionality
Speed/load control, overspeed protection, remote speed setting
Dual dynamic characteristics, overspeed test, starting fuel limit
Fault diagnosis, status indication, and remote configuration
WOODWARD 9905-860｜Digital Control Unit｜
By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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