Woodward 9907-1200 Current-to-Pressure Converter CPC-II
Woodward 9907-1200 Current-to-Pressure Converter (CPC-II)
The Woodward 9907-1200. also known as the CPC-II Current-to-Pressure Converter, serves as a sophisticated electrohydraulic valve control unit used within turbine and engine management systems.
It is designed to convert an electrical input current into a hydraulic pressure output, which actuates steam turbine valves with high precision.
Positioned as a key component in turbine speed and load control loops, the module enables enhanced dynamics and robust performance in complex control architectures.
9907-1200
For system adaptability, the 9907-1200 includes a manual override function allowing local adjustment of output pressure, alongside remote configuration and calibration via a service tool.
It features an eleven-point linearization table to compensate for non-linear valve flow characteristics and a silt buster function to periodically flush potential contaminant buildup, both optimizing turbine control and longevity.
Its robust operating temperature range (-40°C to +85°C) and IP66 ingress protection ensure functionality in challenging environmental conditions, while the compact form factor and flexible mounting options facilitate straightforward integration into control panels.
Detailed Technical Specifications
Parameter Value
Model 9907-1200
Brand Woodward
Product Type Current-to-Pressure Converter (CPC-II)
Pressure Range 0 to 10 bar (0 to 145 psi)
Input Signal 4 to 20 mA (configurable)
Output Signal Electrohydraulic pressure control
Operating Temperature -40 to +85 °C
Power Supply 18 to 32 V DC, nominal 24 V DC
Max Current Output 8 Amps
Mounting Face mounting with threaded holes
Protection Rating IP66
Redundancy Support Yes (dual input/controller capable)
Dimensions (approx.) 290 x 270 x 270 mm
Weight Approximately 25 kg
Related Modules or Compatible Units
9907-1100 – Similar current-to-pressure converter supporting different pressure ranges for varied turbine applications.
9907-055 – Electrohydraulic actuator controller designed for integration with Woodward control systems.
9907-072 – Enhanced valve servo control module with additional redundancy features.
9907-076 – Complementary control module providing advanced diagnostics and feedback capabilities.
9907-077 – Compact electrohydraulic valve control module for smaller scale engine applications.
9907-105 – Current-to-pressure converter variant optimized for higher pressure applications.