Context
As a general recommendation, the hull unit shall be oriented with the hoisting motor pointing aft. If this orientation makes it difficult to access electrical connections, the hull unit may be rotated during its installation
to the most suitable direction. The 0° reference for the built-in sensor is always related to the gantry. If the hoist/lower motor does not point aft (on or parallel to the vessel’s centre line) the built-in motion sensor offset must be defined. Independent of the hull unit orientation, the offset of the built-in motion sensor is always defined as:
The angle measured from the bow to the motion sensor’s 0° reference.
On the MRU page, define the offset as rotation around Z.
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If the 0° reference mark for the built-in motion sensor points to the starboard (right) side of the vessel’s centre line (as
shown in the illustration), insert the offset as a number between 0 and +180 degrees. |
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If the 0° reference mark points to the port (left) side of the vessel’s centre line, insert the offset as a number between
0 and –180 degrees. |
Illustration:
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A |
Rotation around the x-axis: In the positive horizontal direction (forward), a positive rotation is clockwise. |
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B |
Rotation around the y-axis: In the positive horizontal direction (starboard), a positive rotation is clockwise. |
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C |
Rotation around the z-axis: In the positive vertical direction (down), a positive rotation is clockwise. |
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D |
Reference point (Ship Origin) |