Simrad AP21 and AP22 Autopilots
104 20220596G
Automatic
tuning
Automatic
tuning
confirmed
Activate the AUTOTUNE, by rotating the course knob
clockwise. The display will flash “Automatic tuning”.
After the Autotune has been completed the rudder must be
controlled manually, as the mode is returned to STBY.
When the Autotune has been completed, there should normally
be no need for further adjustments. On certain installations,
however, you may want to "fine tune" the parameters after the
Autotune due to the special steering characteristic of a specific
boat. Viewing or changing the Autotune parameters are done
from within the VIEW PARAMETERS menu item.
Exit the Seatrial menu by pushing STBD [>] button to proceed to
the Parameters menu, or press STBY to return to normal
autopilot operation.
View parameters
0.2
Cont.Rud 1.40
Autotrim 40
Rudder Lim 20
Rudder LO
A boats steering parameters found by Autotune can be looked at
and if needed changed under this menu item. The steering
parameters can also be set manually instead of performing an
Autotune. The parameters are divided into two sets:
• LO = Steering parameters for automatic steering at LO speed
• HI = Steering parameters for automatic steering at HI speed
Rudder 0.20
Cont.R 1.40
Autotrim 40
Rudder Lim 10
HI