3
When the vessel is at the required position:
a
Press the
Auto surge
button twice within four seconds. The
Auto surge
button
status indicator starts to flash.
• The vessel starts to slow down (loose speed) in the surge axis in a controlled
manner at a rate that depends on the selected controller gain.
• When the vessel speed (in the surge axis) is reduced to less than a predefined
limit, automatic position control in the surge axis is enabled and the
Auto
surge
button status indicator becomes steadily lit. The current vessel
position in the surge axis becomes the position setpoint in the surge axis,
and the system automatically keeps the vessel at this position.
b
Press the
Auto sway
button twice within four seconds. The
Auto sway
button
status indicator starts to flash.
• The vessel starts to slow down (loose speed) in the sway axis in a controlled
manner at a rate that depends on the selected controller gain.
• When the vessel speed (in the sway axis) is reduced to less than a predefined
limit, automatic position control in the sway axis is enabled and the
Auto
sway
button status indicator becomes steadily lit. The current vessel
position in the sway axis becomes the position setpoint in the sway axis, and
the system automatically keeps the vessel at this position.
• The system enters
Station Keeping
mode and the
Station keeping
button
status indicator become steadily lit. The current vessel position becomes
the position setpoint and the system automatically keeps the vessel at this
position.
If you only want to move the vessel in a single axis (surge or sway), disable automatic
control for the desired axis by means of the
Auto surge
or
Auto sway
button, move
the vessel using the joystick. Then, when the required position is reached, re-enable
automatic control for the disabled axis by means of the
Auto surge
or
Auto sway
button.
Setting heading and position limits
Warning and alarm limits can be set for both heading and position deviation.
Heading deviation
Warning and alarm limits for heading deviation can only be activated when the yaw
axis is under automatic control, i.e. the system is in a mode where automatic heading
control is possible.
When the vessel's actual heading differs from the heading setpoint by more than the
warning limit, a warning message is displayed. When the vessel's actual heading differs
from the heading setpoint by more than the alarm limit, the audible signal horn sounds
and an alarm message is displayed.
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