Alarms - Raymarine Evolution EV-2 Installation Instructions Manual

12.4 Alarms

Alarms are raised by the autopilot system to alert you to mechanical and electrical conditions
requiring your attention.
The Evolution components transmit alarm alerts on the SeaTalkng ® network for display on autopilot
controllers and MFDs, along with an audible alert. The Evolution components stop raising an alarm
when the alarm condition ceases or the alarm is acknowledged on the autopilot controller or MFD. If
the alarm is safety-critical it will be raised again after a timed delay.
Unless otherwise stated in the table below, you should respond to alarms by selecting OK or
Acknowledge on your autopilot controller or MFD.
Alarm Message
OFF COURSE
WIND SHIFT
LOW BATTERY
LARGE XTE
CU DISCONNECTED
WAYPOINT ADVANCE
ROUTE COMPLETE
NO DATA
System checks and troubleshooting
Possible causes
Autopilot has deviated from
planned course.
Autopilot is unable to maintain
navigation to the current wind
angle.
Power supply voltage has
dropped below acceptable
limits. Caused by low battery
voltage or voltage drop at the
ACU unit (EV-1 systems only),
due to poor connections or
inadequate wiring.
Large cross-track error. The
autopilot has deviated more
than expected from a planned
course.
The autopilot control head has
been disconnected.
The autopilot has steered the
vessel to the current waypoint.
Your vessel has arrived at the
end of the current route.
• The autopilot is in Wind
Vane mode and has not
received wind angle data for
32 seconds.
• The autopilot is in Track
mode and is not receiving
navigation data, or the rudder
angle sensor is receiving a
low-strength signal. This
Solution
Check your vessel position
and if necessary take manual
control to steer the vessel back
on course.
Acknowledge the alarm
and then start the engine
to recharge the battery. If
problem persists, check wiring
connections and that the
quality and gauge of wiring is
adequate for the current draw
of the drive unit.
Check your vessel position
and if necessary take manual
control to steer the vessel back
on course.
• Check the physical cables
and connections between
the autopilot control head
and the SeaTalkng ® system.
Also between the EV-1 / EV-2
and the SeaTalk ng system.
• If the autopilot control head
is connected via a SeaTalk ®
to SeaTalkng ® converter,
check the converter is using
the latest software version.
Acknowledge the turn to the
next waypoint.
No action required.
Check the connections to the
wind transducer, multifunction
display, and autopilot control
head (as appropriate).
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