Raymarine ST4000+ Owner's Handbook Manual page 20

81131_7.book Page 12 Wednesday, March 17, 2004 3:59 PM
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The ST4000+ activates this alarm when the boat has been off course
from the locked heading by more than the specified angle* for longer
than 20seconds. It shows whether the deviation is to port or starboard.
Note: * You can adjust this specified alarm angle in Dealer setup
(see page 94).
1. To cancel the off course alarm, press standby.
2. Check whether your boat is carrying too much sail, or whether the
sails are badly balanced. You can usually significantly improve
course keeping by improving the sail balance.
Note: The ST4000+ also clears the alarm if the heading recovers, if
you change the course, or if you change the operating mode.
Wind Shift alarm (WINDSHIFT)
The ST4000+ activates the Windshift alarm when it detects a change
in the apparent wind angle of more than 15° (see page 24).
Large Cross Track Error alarm (LARGE XTE)
The ST4000+ activates this alarm when the cross track error exceeds
0.3 nm (see page 17).The alarm clears if the heading recovers, if you
change the course, or if you change the operating mode.
Drive Stopped alarm (DRIVESTOP)
The ST4000+ activates this alarm if:
• the rudder position sensor fails, or
• the autopilot is unable to turn the rudder (this occurs if the weather
load on helm is too high, or if the rudder position sensor has
passed beyond the preset rudder limits or rudder end-stops)
Data Not Received alarm
The ST4000+ activates this alarm in any of the following situations:
• the compass is not connected
• the autopilot is in Wind Vane mode and it has not received wind
angle data for 30 seconds
• the autopilot is in Track mode and:
•
•
ST4000+ Wheel & Tiller Autopilots: Owner's Handbook
the boat has arrived at the last waypoint in the track, or
the autopilot is not receiving SeaTalk navigation data, or
NO DATA)
(