Simrad AP48 - Page 56

Alarm/Warning Possible cause Recommended action Rudder drive overload
Reversible motor: motor stalls or is overloaded. Solenoids: shortage to ground or cabling damage.
• Check for possible mechanical blocking of rudder • If heavy sea at high rudder angle, try to reduce boat speed or
rudder angle by steering at another heading
• Make sure there is no shortage to ground or cabling damage • Disconnect cable from autopilot computer to motor, and
make sure there is no alarm when trying to run in NFU mode
• Check that the drive unit is appropriately dimensioned for the
boat and rudder size
Rudder limit
The set rudder limit has been reached or exceeded. May be caused by disturbance to compass (waves), speed log, sharp turn or improper parameter setting.
• Notification only
True wind shift
True wind shift exceeds wind shift limit.
• Take appropriate action to handle the vessel • Re-enter WIND mode to reset the Wind shift reading
Wind shift
True wind direction has changed by more than the limit.
• Take appropriate action to handle the vessel • Re-enter WIND mode to reset the Wind shift reading