8-5-6 Section 8: Autopilots
ST290 Instrument System Owner’s Handbook
To configure DEFAULT RESPONSE:
150G & 400G autopilot systems
150G and 400G autopilot systems have nine response level options:
Level 1 gives the least pilot activity to conserve power, but may
compromise short-term course-keeping accuracy
Levels4to6 shouldgive goodcoursekeeping withcrisp, well-controlled
turns under normal operating conditions
Level 9 gives the tightest course keeping and greatest rudder activity, but
may lead to a rough passage in open waters as the autopilot may ‘fight’
the sea
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
1. Use the button to scroll to the
DEFAULT RESPONSE page.
2. Use the or button to select the
response level. The adjustment can be
made from 1 to 9 (1 to 3 for T150 &
T400 systems - see below)
3. To move to the next setting press the button, or to leave the cur-
rent calibration chapter and save all setting changes, press the
button.
D6094-1
81183_2 S8.book Page 6 Tuesday, May 6, 2003 9:08 AM
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