Raymarine St290 Specifications Page 241

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8-3-4 Section 8: Autopilots
ST290 Instrument System Owners Handbook
3.3 Autopilot alarm messages
When the autopilot detects a fault or failure on the system, it will initiate
an alarm message.
Before you attempt to resolve the problem, press
STANDBY to clear
the alarm and return to hand steering, unless otherwise stated.
In some situations, the autopilot will raise more than one alarm.
When you have dealt with the first alarm, the autopilot will display
the next alarm.
Alarm message Cause Action
PILOT DISENGAGED Possible fault with rudder position
sensor.
OR
Stern (I/O) drives only you have
taken manual control of steering
with AutoRelease on.
Check connections and mechani-
cal linkage.
The alarm cancels automatically
after 10 seconds.
CURRENT and LIMIT Serious drive failure the drive is
taking too much current.
Check the drive unit for a jam and
cabling for a short circuit.
If fault persists, call a Raymarine
service agent.
DRIVESTOPPED The autopilot is unable to turn the
rudder (this occurs if the weather
load on the helm is too high, or if
the rudder position sensor has
passed beyond the preset rudder
limits or rudder end-stops).
Check drive and rudder position
sensor.
LOW BATTERY Supply voltage has dropped below
acceptable limits.
Press STANDBY to clear the alarm
and return to hand steering
THEN
Start the engine to recharge the
battery.
MOT POW and SWAPPED Motor cables are connected to
power terminals (and power
cables are connected to motor ter-
minals) at course computer.
Turn off power, check and swap
over connections.
81183_2 S8.book Page 4 Tuesday, May 6, 2003 9:08 AM
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