8-2-8 Section 8: Autopilots
ST290 Instrument System Owner’s Handbook
T150 & T400 autopilot systems
T150 and T400 (non-GyroPlus) autopilot systems have three response
level options:
Level 1 - AutoSeastate on (Automatic deadband):
• Autopilot gradually ignores repetitive boat movements and only
reacts to true variations in course.
• Provides the best compromise between power consumption and
course keeping accuracy.
Level 2 - AutoSeastate off (minimum deadband):
• Provides tighter course keeping.
• Increased power consumption and drive unit activity.
Level 3 - AutoSeastate off and counter rudder yaw damping:
• Providestightest possiblecoursekeeping by introducing counterrud-
der yaw damping (see Section 8, Chapter 5).
Temporary changes to response
To make a temporary change to the response setting of T150 and T400
autopilots:
1. Display the RESPONSE screen by pressing the
RESP button.
2. Press
-1 or +1 to change the response between levels 1 to 3.
3. Press
DISP or wait for 10 seconds to return to the previous display.
Note: You will lose these temporary changes to response level whenever
the system is powered off. You can make PERMANENT adjustments in
Pilot Basic or Advanced Calibration (see Section 8, Chapter 5).
Off Course warning
Ifan OFF COURSEwarning occurs,pop-upwindow appears displayingthe
locked and compass bearings.
Figure 2-9: Off course warning
D3315-3
Message will 'pop-up'
in front of current view
81183_2 S8.book Page 8 Tuesday, May 6, 2003 9:08 AM
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