Rolls-Royce WRC1021B Printed Circuit Board

Rolls-Royce WRC1021B Product Introduction and Technical Specifications
Brand: Rolls-Royce Marine (Brattvaag)
Model: WRC1021B
Full Product Name: WRC1021B Servo Valve Control Printed Circuit Board
Country of Origin: Norway
HS Code Reference: 85389091 (For customs reference only; confirm classification with local customs authority before declaration)
Overall dimension: 160 mm × 100 mm × 32 mm (Eurocard B standard format)
Net weight: Approximately 0.38 kg

Electrical Specifications
Available power supply: 230 V AC, 50 / 60 Hz and 24 V DC dual supply options
Power consumption: 0.04 A at 230 V AC without servo valve loads; maximum 4.0 A under 24 V DC depending on alarm output loads
Maximum servo drive output: 1.5 A at 220 V AC
Maximum alarm limit output rating: 2.0 A at 24 V DC
Operating temperature range: -10 °C to +55 °C
Storage temperature range: -40 °C to +70 °C
Relative humidity: 5%–95%, non-condensing
Main Characteristics
Original legacy revision within WRC1021 series, mechanically interchangeable with updated WRC1021D;
Closed-loop control for hydraulic proportional servo valves with potentiometer position feedback acquisition;
Onboard potentiometers and DIP switches enable flexible gain and offset adjustment during commissioning;
Multi-channel LED status indicators display power status, servo drive activity and circuit faults visually;
Built-in protection logic for overcurrent, short-circuit and feedback signal loss monitoring;
Eurocard standard plug-in structure for easy rack mounting, inspection and direct on-site replacement;
Optimized PCB layout with noise suppression circuits to resist marine electromagnetic interference;
Supports precise positioning control of winches, offshore cranes and anchor handling machinery;
Real-time fault diagnosis for broken wiring, potentiometer sensor failure and servo circuit anomalies;
Designed and tested to meet marine environmental standards against vibration and damp salt-laden atmosphere;
Mainly deployed in deck hydraulic control systems of cargo vessels, OSVs and coastal working ships.