Marine Propulsion Control Systems
Pitch & Azimuth Control
⚓ Technical Support, Maintenance & Modern Propulsion Control Solutions
AUTOMATOS KOSMOS 4U provides technical support, troubleshooting, maintenance, repair and modernisation services for Pitch and Azimuth propulsion control systems.
Our services cover the installation from bridge controls to control electronics, sensors and system actuating components. We examine the complete command and feedback path to identify the cause of a malfunction and determine the appropriate technical solution.
Whether the requirement involves adjustment, electronic board repair, component replacement or a complete control system retrofit, we tailor our support to each vessel’s equipment and operational needs.
⚓ Pitch Control — Controllable Pitch Propeller Systems
In controllable pitch propeller (CPP) systems, correct coordination between the pitch command, actual position and operating interlocks is essential for thrust control.
We inspect and support pitch control systems, including their coordination with main engine speed where applicable.
✅ Pitch command checks and comparison with actual position.
✅ Inspection of position sensors, feedback signals and indications.
✅ Zero-point, limit and signal scaling adjustments.
✅ Checks of solenoid valves, proportional valves and associated driver circuits, where fitted.
✅ Investigation of discrepancies between bridge and local controls.
✅ Verification of operating sequences, permissives and interlocks.
⚓ Azimuth Control — Propulsion & Steering
Azimuth units combine propulsion and steering by rotating the propulsion unit to direct thrust. Their correct operation requires coordination between operator controls, controllers, position feedback and actuating equipment.
✅ Azimuth angle command and actual position checks.
✅ Inspection of sensors, encoders and feedback signals.
✅ Checks of control levers, operator controls and station selection.
✅ Inspection of electrohydraulic control valves and associated electrical signals.
✅ Engine speed command and clutch control checks, where applicable.
✅ Verification of control transfer, alarms and interlocks.
⚓ Troubleshooting, Maintenance & Technical Support
We investigate faults through systematic installation checks, combining electrical measurements, signal verification and functional testing.
✅ Preventive and corrective control system maintenance.
✅ Power supply, wiring, connection and communication checks.
✅ Diagnosis of intermittent faults and command–feedback discrepancies.
✅ Inspection and calibration of operator controls, sensors and indicators.
✅ Onboard attendance and remote technical support, where feasible.
✅ Functional testing following completion of the work.
⚓ Electronic Board Repairs & Spare Parts Supply
We provide inspection and repair of electronic boards and control modules, subject to technical assessment of the fault and repair feasibility.
We also source and supply spare parts and equipment to support system restoration and ongoing maintenance.
✅ Electronic boards, controllers and I/O modules.
✅ Position sensors, encoders and speed pickup sensors.
✅ Control levers, potentiometers, selector switches and indicating instruments.
✅ Solenoid valves, coils and associated control components.
✅ Power supplies, relays, signal converters and isolators.
Spare parts and potential alternatives are selected according to their technical specifications and compatibility with the existing system.
⚓ PLC & HMI Modernisation and Retrofit
Where modernisation is required, we develop solutions that replace legacy control electronics with modern PLC architecture and HMI operator interfaces.
✅ Onboard assessment and review of existing system operation.
✅ Programming of operating sequences, permissives and interlocks.
✅ Operator interfaces with operating indications, alarms and diagnostics.
✅ Integration of existing equipment wherever technically feasible.
✅ Installation, integration, testing and commissioning.
Each scope of work is defined according to the system type, equipment condition and agreed technical requirements.
Marine Expertise. Complete Control.
Technical Support • Maintenance • Repairs • Spare Parts • System Upgrades
Contact our team for support with your vessel’s Pitch or Azimuth control system.
