Raymarine autopilot control unit - Manual (Page 47)

30 ST7000 Plus Autopilot Control Unit Owner’s Handbook
Off Course
OFF alternating with COURSE
This alarm is activated when the vessel has been off course from the
locked heading by more than the specified angle for more than 20
seconds (see Using Auto Mode in Chapter 2).
The alarm is cleared if the heading recovers or the course is changed,
or if the operating mode is changed.
Wind Shift
WIND alternating with SHIFT
This alarm is activated when a change in the apparent wind angle
requires an adjustment of the locked heading by more than 15° (see
Operating in Wind Mode in this Chapter).
Large Cross Track Error
LARGE XTE
This alarm is activated when the cross track error exceeds 0.3 nm (see
Operating in Track Mode in this Chapter).
The alarm is cleared if the cross track error falls below 0.3 nm, or if the
operating mode is changed.
Drive Stopped
DRIVE alternating with STOPPED
This alarm is activated if the autopilot is unable to turn the rudder. This
occurs if the weather load on helm is too high, or if the requested
rudder position is past the preset rudder limits or the rudder end-stops.
Data Not Received
NO DATA
This alarm is displayed in the following circumstances:
• Track mode is engaged and the autopilot is not receiving SeaTalk
navigation data.
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