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WOODWARD 9907-166｜505E Digital Speed Controller｜

WOODWARD 9907-166｜505E Digital Speed Controller｜illustration

Core functions: speed closed-loop, load regulation, extraction/inlet pressure control, valve range separation, automatic start stop, critical speed avoidance, overspeed/underspeed protection, first fault memory
Typical applications: Industrial steam turbines, steam turbine generator sets, turbine expanders, marine propulsion steam turbines
Environmental adaptation: Suitable for Class 1, Div. 2, optional NEMA 4/4X protective casing

Specifications
Power supply 88-132 VAC (47-63 Hz) or 90-150 VDC
Speed measurement with 2-channel magneto resistive speed sensor (MPU), 0-20000 rpm
Control accuracy speed ± 0.1% rated speed
2-channel split stage actuator driver for actuator output
Digital input 16 way contact input (including dedicated/programmable)
Analog input 6-way 4-20 mA programmable
Digital output with 8 relay outputs
Analog output 6 channels 4-20 mA programmable
Communication interface 2-channel Modbus (ASCII/RTU), supporting RS-232/485

Function
Multi mode control: speed, power, pressure, flow rate, valve position, synchronous synchronization, load distribution
Extraction/Inlet Steam Management: Suitable for single extraction, inlet steam, or extraction+inlet steam composite control, supporting split range actuators
Automatic start stop and protection: automatic start in cold and hot states, valve limiting, critical speed avoidance, overspeed/underspeed/overload protection, first fault memory
On site programmable: local button/menu settings, no additional hardware required, supports 505View software configuration
Safety linkage: It can be linked with ETS/overspeed protection system to achieve shutdown and interlocking