Rolls-Royce WRC1021B Servo Control Printed Circuit Board

Description

Rolls-Royce WRC1021B Marine Controller Board Introduction & Technical Specifications
Basic Identification Information
Brand: Rolls-Royce Marine AS (Brattvaag Division)
Model: WRC1021B
Full official product name: Marine Servo Control Printed Circuit Board
Place of origin: Norway (Brattvaag factory)
Customs HS Code: 85437090, applicable for special industrial automatic control electronic circuit boards for ship equipment
Dimension and Weight
Overall board dimension: 195 mm × 112 mm × 28 mm, standard European DIN rail cabinet plug-in installation size, unified card slot fixing structure for marine control cabinets
Net weight of single circuit board: 475g ~ 480g
Base board material: FR4 flame-retardant circuit substrate that meets UL94-V0 standard, with multi-layer copper shielding layer for anti-electromagnetic interference; surface adopts anti-corrosion immersion gold process to resist marine salt fog erosion; it needs to be installed inside sealed control cabinet to reach IP65 overall protection grade, and the bare board protection grade is IP30.

Electrical Voltage and Current Parameters
Dual optional input power supply modes: AC power supply is 2×115VAC or 230VAC, adaptive 50Hz and 60Hz power grid frequency; DC rated working voltage is 24VDC
Total rated power consumption of the whole board: 10VA under normal standby state; AC 220V no-load static current is 0.04A; 24VDC maximum operating current is 4.0A under full-load alarm output condition
Servo valve driving output parameter: single channel maximum driving current 1.5A at 220VAC; limit alarm output maximum load current 2.0A at 24VDC
Built-in power protection circuit, including input reverse polarity protection, overcurrent fuse protection and surge voltage suppression circuit; dual-channel PTC thermistor temperature detection interface is reserved, which matches B59910-C120-A70 thermal resistance sensor for motor overheating monitoring.
Signal Acquisition and Control Performance Parameters
I/O channel configuration: high-density integrated circuit design supports up to 256 digital and analog signal acquisition channels simultaneously
Signal response delay: control instruction output delay is less than 15ms, which meets the fast closed-loop adjustment requirement of hydraulic servo system
Temperature working range: normal continuous operating ambient temperature range is -20℃ ~ +70℃, storage temperature range is -40℃ ~ +85℃, insulation grade is Class B
Signal measurement precision: analog voltage sampling precision reaches ±0.2% full scale range, temperature detection resolution is ±0.1℃
Main Functional Characteristics
It integrates real-time automatic self-inspection function, which continuously monitors chip operation, circuit conduction state and sensor signal abnormality, and locks the output terminal and feeds back fault codes once hardware failure or signal loss occurs; the internal programmable logic supports flexible parameter setting of protection threshold, action delay and servo proportional gain, which can adapt to different hydraulic equipment control demands; multi-group relay auxiliary output contacts are reserved for interlock linkage with alarm indicators, contactors and safety cut-off switches; reinforced EMC electromagnetic shielding design can resist marine high-frequency interference, inverter harmonic interference and engine vibration interference, effectively avoiding false action and signal distortion; modular plug-in design enables quick disassembly and replacement, greatly shortening ship maintenance downtime; fully compatible with Rolls-Royce complete set of marine winch, crane and hydraulic control systems, with long mechanical service life and stable long-term continuous operation performance at sea; it complies with international marine certification standards including DNV marine equipment certification and CE EMC certification.

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