Garmin GHP 20 Marine Autopilot System for Steer-by-Wire Installation Instructi - Page 17

Error and Warning Messages

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Category Navigation Setup Navigation Setup Setting Navigation Gain Navigation Trim Gain Description Allows you to adjust how aggressively the autopilot eliminates cross-track error while following a Route-To pattern. If this value is too high, the autopilot can oscillate back and forth across the course line over long distances. If this value is too low, the autopilot may respond slowly in eliminating cross-track error. Allows you to adjust the acceptable amount of long term cross-track error while following a Route-To pattern. Only adjust this setting after the navigation gain has been set. If this value is too high, the autopilot will overcompensate for crosstrack error. If this value is too low, the autopilot will allow a large long term cross-track error. NOTE: Advanced configuration settings are available when using the advanced configuration procedure (page 13). Other settings are available during normal operation of the GHP 20. See the configuration section of the GHC 10 Owner's Manual for more information. Error and Warning Messages Error Message Cause Autopilot Action Autopilot is not The autopilot is no • receiving navigation longer receiving • data. Autopilot placed valid navigation data in heading hold. while performing a Route-To. This message will also be shown if navigation is stopped on a chartplotter prior to disengaging the autopilot. Alarm sounds Autopilot transitions to heading hold Connection with autopilot lost The GHC lost N/A connection with CCU. Low GHC supply voltage The supply voltage N/A level is below the value specified in the low voltage alarm menu. Lost Communication The autopilot lost • Alarm sounds With Steering connection with the • Autopilot transitions Controller boat steering system to standby while the autopilot was engaged. No Steering Controller Detected The autopilot cannot • detect the boat • steering system when trying to engage. Alarm sounds Autopilot transitions to standby Steering Controller Not Supported The steering system • Alarm sounds of the boat is not • Autopilot transitions compatible with the to standby installed version of the GHP 20. GHP 20 Installation Instructions 17

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GHP 20 Installation Instructions
17
Category
Setting
Description
Navigation Setup
Navigation
Gain
Allows you to adjust how
aggressively the autopilot
eliminates cross-track error
while following a Route-To
pattern.
If this value is too high, the
autopilot can oscillate back
and forth across the course
line over long distances.
If this value is too low, the
autopilot may respond slowly
in eliminating cross-track
error.
Navigation Setup
Navigation
Trim Gain
Allows you to adjust the
acceptable amount of long
term cross-track error while
following a Route-To pattern.
Only adjust this setting after
the navigation gain has been
set.
If this value is too
high, the autopilot will
overcompensate for cross-
track error.
If this value is too low, the
autopilot will allow a large
long term cross-track error.
NOTE:
Advanced configuration settings are available when using
the advanced configuration procedure (
page 13
). Other settings are
available during normal operation of the GHP 20. See the configuration
section of the
GHC 10 Owner’s Manual
for more information.
Error and Warning Messages
Error Message
Cause
Autopilot Action
Autopilot is not
receiving navigation
data. Autopilot placed
in heading hold.
The autopilot is no
longer receiving
valid navigation data
while performing a
Route-To.
This message will
also be shown if
navigation is stopped
on a chartplotter prior
to disengaging the
autopilot.
•
Alarm sounds
•
Autopilot transitions
to heading hold
Connection with
autopilot lost
The GHC lost
connection with CCU.
N/A
Low GHC supply
voltage
The supply voltage
level is below the
value specified in the
low voltage alarm
menu.
N/A
Lost Communication
With Steering
Controller
The autopilot lost
connection with the
boat steering system
while the autopilot
was engaged.
•
Alarm sounds
•
Autopilot transitions
to standby
No Steering
Controller Detected
The autopilot cannot
detect the boat
steering system when
trying to engage.
•
Alarm sounds
•
Autopilot transitions
to standby
Steering Controller
Not Supported
The steering system
of the boat is not
compatible with the
installed version of
the GHP 20.
•
Alarm sounds
•
Autopilot transitions
to standby