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6
TROUBLE SHOOTING
6.1
Fault warnings
The following fault warnings may be shown on the information
display:
OUT OF COURSE
RESET ALARM
Course deviation greater than selected off course alarm limit. The
alarm is automatically reset when the vessel is back within the limit
or cancelled by pressing Alarm reset button.
The following conditions may cause the alarm:
a. Low speed on vessel (slow acting response).
b. Extreme sea conditions (following sea).
c. Improper compass adjustment of magnetic compass when selected
Readjustment of the autopilot (Weather, Rudder, Counter Rudder) to
improve steering performance may cure the problem. Otherwise the
off course limit should be adjusted.
This fault warning may also appear due to intermittent fault on the
compass signal (open connection).
RUDDER FEEDBACK
FAIL!
Indicates that the autopilot is not reading any rudder feedback signal.
By pressing the alarm reset button, the audible alarm will be disabled
and the autopilot will switch to a simulated signal, instead of the real.
This is indicated by a flashing * * SIM * * on the information display.
The autopilot will continue to steer the set course, but the steering
performance is normally somewhat reduced.
The alarm is probably caused by one of the following reasons and
should be checked in the following sequence:
a. Open wire in feedback cable.
b. Defective feedback unit.
c. Defective input circuit in control unit.
When the fault is rectified, the autopilot will automatically disable
the simulated rudder angle signal.
20169223D
as Main Compass.
Trouble shooting
6-1
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