KONGSBERG RCU502 | Marine Remote Control Unit

​Parameter ​Specification
​Product Model RCU502
​Manufacturer Kongsberg Maritime
​Type Marine Remote Control Unit
​I/O Capacity 64 digital / 16 analog points
​Control Networks Dual-redundant CAN Bus, Ethernet TCP/IP
​Protocols J1939, Modbus TCP, OPC UA
​Processing Time <50 ms (command-to-actuation)
​Power Supply 24 VDC ±20% (18-36 VDC)
​Safety Rating IEC 61508 SIL 2, DNV GL DP(AA)
​Environmental -25°C to +70°C, 95% RH
​Enclosure IP66/67 aluminum, DNV TA type approved
​Mounting Panel or DIN rail
​Shock/Vibration 15g / 7g (IEC 60945)
​Certifications ABS, Lloyds, Bureau Veritas
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Description

Product Overview
The ​KONGSBERG RCU502 is a robust Remote Control Unit designed for marine propulsion and dynamic positioning (DP) systems, serving as a critical interface between vessel machinery and integrated bridge systems. Engineered for harsh maritime environments, the ​RCU502 enables centralized control of thrusters, propellers, and auxiliary systems with deterministic response times (<50 ms) certified to DNV GL/ABS class rules. This modular unit supports SIL 2 safety integrity per IEC 61508, facilitating redundant command pathways for critical operations like emergency shutdown (ESD) and thruster fail-safe modes. With IP66/67-rated housing resistant to salt spray, vibration, and extreme temperatures, the ​KONGSBERG RCU502 provides reliable performance on offshore vessels, cruise ships, and naval platforms where operational continuity is paramount.

Technical Specifications

​Parameter ​Specification
​Product Model RCU502
​Manufacturer Kongsberg Maritime
​Type Marine Remote Control Unit
​I/O Capacity 64 digital / 16 analog points
​Control Networks Dual-redundant CAN Bus, Ethernet TCP/IP
​Protocols J1939, Modbus TCP, OPC UA
​Processing Time <50 ms (command-to-actuation)
​Power Supply 24 VDC ±20% (18-36 VDC)
​Safety Rating IEC 61508 SIL 2, DNV GL DP(AA)
​Environmental -25°C to +70°C, 95% RH
​Enclosure IP66/67 aluminum, DNV TA type approved
​Mounting Panel or DIN rail
​Shock/Vibration 15g / 7g (IEC 60945)
​Certifications ABS, Lloyds, Bureau Veritas

Key Features & Advantages

Fail-Operational Redundancy:

  • Dual-independent processing channels with automatic switchover (<100 ms)
  • Watchdog timers and cyclic self-tests for continuous health monitoring
  • “Dead man’s switch” functionality for zero-delay thruster halt

Marine-Specific Engineering:

  • Salt-mist validated for 1,000+ hours (ISO 9227)
  • Galvanic isolation on all I/O (1.5 kV) prevents ground loops
  • Integrated surge protection (6 kV) for lightning strikes

RCU502

Seamless Integration:

  • Pre-mapped interfaces for Kongsberg ​K-Pos DP systems
  • Plug-and-play with ​Shaft Troll azimuth controllers
  • Built-in ​K-Chief 700 alarm system protocol conversion

Cybersecurity:

  • Hardware-enforced boot integrity (ECDSA signatures)
  • MAC address filtering and VLAN segmentation (IEC 62443-3-3)

Application Areas

  • ​Dynamic Positioning: Joystick control of azimuth thrusters in offshore supply vessels
  • ​Cruise Ship Propulsion: Integrated rudder/thruster control for precise maneuvering
  • ​Naval Systems: Redundant control of waterjet propulsion in patrol boats
  • ​FPSO/Tanker Operations: Ballast pump sequencing with SIL 2 interlocks
  • ​Fishing Vessels: Trawl winch tension control via CAN Bus interface
  • ​Icebreakers: Azipod® torque monitoring with ice-load detection

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