Description

Kongsberg RCU502I 421768 Marine-Grade Remote Control Unit Processor

Technical Specifications

• Product Model: RCU502I (Part No. 421768)
• Brand: Kongsberg
• Warranty: One Year
• Input Voltage: 24VDC (18–31.2VDC wide range), supports dual redundant power supply input
• Operating Temperature: -40°C to +70°C
• Storage Temperature: -40°C to +85°C
• Response Time: Deterministic millisecond-level I/O scan and network data refresh cycle
• Protection Class: IP66 sealed aluminum enclosure, IEC 60945 marine certification
• Accuracy Class: Industrial safety-grade signal acquisition, ±0.1% analog measurement precision
• Output Frequency: System internal bus fixed communication baud rate, Ethernet 10/100Mbps auto-negotiation
• Rated Current Range: Max 0.75A operating current, total power consumption ≤20W
• Communication Interface: Dual RBUS Ethernet ports, RS232/RS422/RS485 serial terminals, CAN bus interface
• Supported Protocols: Modbus TCP/RTU, PROFIBUS DP, CANopen, NMEA 0183, Kongsberg proprietary K-Chief bus protocol
• Overload Capacity: Surge suppression, ESD protection, reverse voltage protection, overcurrent and short-circuit lockout
• Dimensions: 355mm × 158mm × 87mm standard rack-mounted module footprint
• 

Product Overview

The Kongsberg RCU502I is a safety-certified redundant remote control unit exclusively built for Kongsberg K-Chief 600 marine and offshore distributed automation systems. It functions as a field I/O processing node to collect analog and digital sensor signals from vessel machinery, thrusters, valve actuators and safety interlock devices, then executes closed-loop control logic and bidirectional data exchange with the central K-Chief supervisory system.

This ruggedized controller addresses extreme environment reliability challenges in marine and offshore safety-critical automation. It adopts dual redundant processor hot standby architecture to deliver uninterrupted operation during single CPU failure, meeting SIL 2/SIL 3 functional safety requirements in dual/triple redundant configurations. The fully sealed IP66 metal housing resists salt spray, high humidity, severe vibration and wide temperature swings in ship engine rooms and offshore platform cabins. Comprehensive onboard self-diagnostics continuously monitor hardware health, network connectivity and field wiring faults, uploading alarm logs to the central monitoring platform for rapid maintenance response. Modular hot-swappable sub-components minimize vessel downtime during overhaul and retrofit work.

Marine automation engineers, offshore instrumentation technicians, ship electrical supervisors and process safety specialists working on merchant vessels, drilling rigs, FPSO platforms and coastal energy facilities derive maximum value from this unit. It guarantees continuous machinery monitoring and safety interlock protection, complies with international marine classification society standards, and reduces unplanned equipment shutdown risks for mission-critical maritime operations.

Core Functional Advantages

1. Redundant dual-processor hot standby design achieves high availability and SIL-level safety compliance
2. IP66 fully enclosed corrosion-resistant casing certified per IEC 60945 marine environmental standards
3. Rich multi-protocol communication interfaces seamlessly integrate with navigation, propulsion and auxiliary machinery subsystems
4. Modular expandable I/O architecture supports flexible addition of analog/digital input/output daughter boards
5. Real-time system self-diagnosis and event logging simplify post-fault root cause analysis
6. Dual redundant power and network ports eliminate single points of failure for offshore 24/7 operation