Raymarine Evolution EV-1, Installation Instructions Manual

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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 Possible causes Solution
OFF COURSE Autopilot has deviated from
planned course. Check your vessel position
and if necessary take manual
control to steer the vessel back
on course.
WIND SHIFT Autopilot is unable to maintain
navigation to the current wind
angle.
LOW BATTERY 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. 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.
LARGE XTE Large cross-track error. The
autopilot has deviated more
than expected from a planned
course. Check your vessel position
and if necessary take manual
control to steer the vessel back
on course.
CU DISCONNECTED The autopilot control head has
been disconnected. • 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.
AUTO RELEASE Possible fault with rudder angle
reference sensor. Alternatively,
if your autopilot system
includes a stern I/O drive, you
have taken manual control of
the steering while the pilot is in
Auto mode. • Check rudder angle
reference sensor
connections.
• For systems using the Volvo
Penta EVC drive interface
unit, check the unit is
operating correctly.
WAYPOINT ADVANCE The autopilot has steered the
vessel to the current waypoint. Acknowledge the turn to the
next waypoint.
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