Control for Bow Thruster with Adjustable Pitch Propeller AHD 903BS 903bsi-e Contents Page 1. Construction 2. Control Units 3. Bow Thruster 4. Failure Report 5. Commissioning Terminal Diagram Dimensional Drawing Technical Data...
Control for Bow Thruster with Adjustable Pitch Propeller AHD 903BS 1180-1i-e.DOC 1. Construction The system for controlling a bow thruster with adjustable-pitch propeller consist of two units. The operating unit for the three control units is located on the bridge, the control unit for propeller adjustment at the bow thruster.
3. Bow Thruster On the bow thruster side, the target value default settings are received serially by the operating unit and the relevant proportional-magnet-valves are activated via a servo control (impulse length control). For return information, the actual value of the propeller angle is registered analogously and then evaluated.
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On request, the system can be pre-configured ex works. Thus, the system is ready for operation immediately after switching on, but this is only reasonable, if the exact adjustment values are known (e. g. for spare-parts, as far as the adjustment values had been taken down).
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zero”, which is mechanically linked with the bridge control, really closes, as otherwise the zero-position can not be adjusted. The programming of the zero-position is now also done as described under 6. (pushing of the takeover-button for app. 1 sec.). If there is no optic acknowledgement (2 sec.
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For the DIP-switches applies: = binary low = binary high SW1 – switch 2 corresponds to the most significant byte (value = 32)... SW2 – switch 4 corresponds to the least significant byte (value = 1) Example: SW1-S2(32) = OFF Byte = High Proportion of total value = 32 SW1-S3(16) = ON Byte = Low...
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