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WOODWARD 9905-657｜Speed controller｜
32-bit high-performance ARM Cortex-A series processor
Suitable for prime mover water turbines (key), pumped storage units, small steam turbines, and special turbines
Control functions include speed control, load control, water level/flow control, islanding/grid connection, and load shedding protection
Special function turbine coupling curve control, cavitation protection, runaway protection, phase modulation operation
I/O capacity up to 48 analog inputs, 24 analog outputs, and 48 discrete I/Os
Special input for snail shell pressure, tailwater pipe pressure, guide vane opening, blade angle, water level signal
Speed input 4-channel MPU (supporting gear signal and encoder signal)
Speed range 10-99999 RPM (supports extremely low speed turbines)
Control accuracy ± 0.02%
Scanning cycle 2ms (turbine fast control mode)
7-inch color TFT touch screen display (same as 505XT-462)
Communication interface dual Ethernet (Modbus TCP/IP), RS-485/232, CANopen, IEC 61850
Data storage with built-in 2GB+pluggable SD card
Power redundancy 24V DC (18-36V) or 125V DC (90-150V)
WOODWARD 9905-657｜Speed controller｜
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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