WOODWARD 9907-1355｜Current Pressure Converter｜

9907-1355 belongs to the CPC-II redundant input type, with a core configuration that is highly consistent with 9907-1352. The differences mainly lie in input channels/redundant voting logic or fieldbus/diagnostic extensions (Woodward naming convention for models in the same series: suffix differentiation for input channels, redundancy methods, diagnostic interfaces):
Input: Dual 4-20 mA redundant setting value, supporting master/slave voting
Control: Built in valve linearization, PID adaptive, fault self diagnosis
Safety: Fault oil return, redundant signal health monitoring
Adaptation: Steam turbine inlet valve, extraction valve, bypass valve servo mechanism
Application

Anti pollution: self-cleaning valve+”dirt killer” algorithm, suitable for turbine lubricating oil, no need for additional fine filtration
Fault safety: forced oil return in case of power loss/fault, valve to safe position, ensuring the safety of the unit
High precision: Full range linearity<± 0.2%, meeting the requirements of precision speed regulation/load control for steam turbines
Redundancy and reliability: dual input voting, supporting dual machine parallel redundancy, improving system availability
Application scenarios: Industrial steam turbines, gas turbines, generator speed control and load control, supporting safety protection systems

WOODWARD 9907-1355｜Current Pressure Converter｜