Autopilot Modes; Standby Mode; Non-Follow Up (Nfu, Power Steering); Follow-Up Steering (Fu) - Simrad NSO evo3 Operator's Manual

SOG Speed over ground
COG Course over ground
XTE Cross track error (L: left or R: right)

Autopilot modes

The autopilot has several steering modes. The number of modes and features within the
mode depend on the autopilot computer, the boat type and available inputs, as explained in
the description of the following steering modes.

Standby mode

Standby mode is used when you steer the boat at the helm. Switch the autopilot to Standby
mode from any operation by selecting the Standby mode button in the Autopilot controller
or by using a physical standby key.
Ú Note: The WheelKey can be configured to be a standby key. Refer to "Configurable WheelKey"
on page 20.

Non-Follow Up (NFU, Power steering)

In NFU mode you use the port and starboard arrow buttons in the Autopilot controller to
control the rudder. The rudder will move as long as the button is pressed.
• Activate NFU mode by selecting the port or starboard arrow button in the Autopilot
controller when the autopilot is in Standby or FU mode.
You return to Standby mode by selecting the standby option in the Autopilot controller or
using a physical standby key.

Follow-up steering (FU)

Ú Note:
FU mode is only available if you have a remote controller included in the system.
In FU mode you use the rotary knob on the remote controller to control the rudder angle.
Press the rotary knob, then turn the knob to set the rudder angle. The rudder moves to the
commanded angle and then stop.
• You select FU mode from the Autopilot controller
Ú Note:
If the Autopilot controller is closed or if an alarm dialog is activated on the unit
controlling the autopilot in FU mode, the autopilot automatically changes to Standby
mode.
Warning:
While in FU mode you cannot take manual control of the wheel.

Heading hold

In Heading hold mode the autopilot issues rudder commands required to steer the vessel
automatically on a set heading.
When the mode is activated, the autopilot selects the current boat heading as the set
heading.
Changing set heading in Heading hold
You adjust the set heading by using the Port and Starboard arrow buttons in the Autopilot
controller.
An immediate heading change takes place. The new heading is maintained until a new
heading is set.
Heading capture
When the vessel is turning in Heading hold mode, an instant reset of the mode activates the
heading capture function. This automatically cancels the turn, and the vessel continues on
the heading read from the compass the very moment you re-activated the mode.
Autopilot | NSO evo3 Operator Manual
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