KONGSBERG HA220256BB

KONGSBERG HA220256BB

Product Introduction HA220256BB is Kongsberg maritime automation I/O interface module for ship and offshore control systems. It collects discrete and analog signals from vessel field sensors, valves and switches, communicates data to Kongsberg main automation controller via proprietary maritime bus. The module provides galvanic isolation between field side and control system bus, executes channel diagnostics and transmits alarm and status data to ship SCADA and alarm monitoring system. It is widely used in ship propulsion, ballast and auxiliary machinery control cabinets.

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Description

KONGSBERG HA220256BB

Technical Specifications

  • Product Type: Maritime I/O interface module
  • Power Supply: 24 V DC marine auxiliary power
  • Signal Type: 24 V DC digital input, 4-20 mA analog input, relay digital output
  • Communication Bus: Kongsberg proprietary maritime control bus
  • Diagnostic Functions: Wire break, short circuit, channel supply fault detection
  • Protection Rating: IP20 for cabinet mounted module
  • Operating Temperature: -10 °C to +55 °C
  • Relative Humidity: 5 % to 95 %, non-condensing, marine condensation resistant
  • Shock and Vibration: Compliant with IEC 60068 marine environmental standard
  • Mounting: Rack plug-in module for Kongsberg marine control cabinet
  • Certification: DNV marine type approval

Functional Features

  1. Multi-channel analog and discrete signal acquisition and output for marine field devices.
  2. Galvanic isolation separates field vessel wiring and internal control bus circuit.
  3. Continuous per-channel diagnostic detects wire break, short circuit and loop supply fault.
  4. DNV marine type approval for shipboard and offshore installation.
  5. Conformal coated PCB withstands marine cabinet high humidity and salt mist environment.
  6. Front panel LED indicators show module power, run status and individual channel fault.
  7. Data communication to Kongsberg main controller for alarm monitoring and control function.
  8. Overvoltage and reverse polarity protection protects internal circuit from marine power transients.
  9. Hot swap capability allows module replacement during vessel normal operation.
  10. EMC performance meets marine electrical installation requirements.

Application Scenarios

  • Ship alarm monitoring system field signal collection
  • Vessel ballast tank level and valve remote control system
  • Offshore platform auxiliary machinery automation cabinet
  • Ship propulsion auxiliary equipment I/O interface
  • Marine fire and bilge system signal monitoring

Material Composition

  • Housing: Flame-retardant polycarbonate plastic modular casing
  • Main PCB: FR4 high reliability printed circuit board with conformal coating
  • Isolation components: High speed optocoupler isolation chips
  • Backplane connector: Gold-plated copper edge contact pins
  • Terminal blocks: Tin-plated copper alloy screw terminals
  • Protection components: Surge suppression and current limiting SMD devices

Structural Characteristics

  • Standard vertical single-slot rack plug-in module structure.
  • Front panel equipped with LED indicators for module and channel diagnostic state.
  • Rear gold-plated edge connector inserts into Kongsberg marine control rack backplane bus.
  • Each I/O channel has independent isolation and diagnostic circuit.
  • Internal circuit layout separates field 24 V DC circuit and marine control bus logic circuit.
  • Passive convection cooling design without fan components.

Working Principle Field signals from ship sensors, limit switches and valve feedback enter HA220256BB I/O terminals. Analog signal circuit converts 4-20 mA measurement signal into digital value. Discrete input circuit reads 24 V DC contact status. The module transmits validated signal data to Kongsberg main controller via rack backplane bus. When controller sends output command, module energises relay contacts to actuate field valves or indicators. Diagnostic circuit monitors each channel loop impedance continuously and reports fault to main alarm system.

Installation Requirements

  • Insert HA220256BB module into designated slot of Kongsberg marine automation rack.
  • Use shielded twisted pair marine instrument cable for field device wiring.
  • Separate signal cables from high power propulsion and motor power cables.
  • Complete protective earth connection for rack and control cabinet.
  • Verify wiring polarity of all 24 V DC and analog field devices.
  • Perform channel on-off test and fault simulation test after wiring completion.
  • Inspect backplane connector contact integrity before power energization.

Usage Notes

  • Follow marine automation system manual for hot swap maintenance operation.
  • Do not apply voltage exceeding rated specification to input and output terminals.
  • Keep cabinet dehumidified to reduce salt mist and condensation impact.
  • Execute periodic channel proof test during vessel dry dock maintenance.
  • Disconnect field wiring before high voltage insulation resistance test.
  • Use anti-static wristband when handling spare modules.
  • Replace module immediately when permanent hardware or communication fault occurs.

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