Furuno FEA-2807 - Page 437

30. Alerts
30-7
Alert number 407: POSITION DISCREPANCY /7/14
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SYSTEM HAS DETECTED MORE DIFFERENCE
THAN SET LIMIT BETWEEN OWN SHIP
PRIMARY AND SECONDARY POSITIONS OR
BETWEEN OWN SHIP AND ANY SENSOR
POSITION. CHECK POSITION SENSORS
Alert number 408: FILTER: SPD BELOW
xx KN /3/10
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KALMAN FILTER REQUIRED THAT THE
SPEED OF THE OWN SHIP IS MORE THAN
SPEED LIMIT SET IN ECDIS
INSTALLATION PARAMETERS. IF ROUTE
STEERING WAS NOT USED, THEN KALMAN
FILTER HAS BEEN SET AUTOMATICALLY
OFF BY THE SYSTEM.
Alert number 409: POSN SOURCE CHANGED /5
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POSITION SOURCE OF OWN SHIP PRIMARY
POSITION HAS BEEN CHANGED
AUTOMATICLLY TO ANOTHER SOURCE THAN
BEFORE. VERIFY NEW SOURCE.
Alert number 410: FILTER: POSN SOURCE CHG /5 or /12
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DGPS POSITION SENSOR USED IN FILTER
POSITIONING HAS CHANGED ITS
OPERATION MODE FROM NORMAL TO
DIFFERENTIAL OR FROM DIFFERENTIAL TO
NORMAL
Alert number 411: CHARTALIGN: OVER 30 MINUTES /3
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IF POSITION ALIGNMENT IS USED THEN
USER IS REMINDED OF IT EVERY 30 MIN.
Alert number 412: GYRO CORR. SOURCE CHANGED /5
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IF SOURCE OF GYRO CORRECTION IS
CHANGED BY SYSTEM. CHECK THAT
CORRECTION IS VALID.
Alert number 413: SOG&COG DATA UNRELIABLE /7/14
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SOG AND/OR COG DATA FROM SENSORS IS
UNRELIABLE. VERIFY AND SELECT
SPEED/COURSE AND POS SENSORS IN
'SENSORS’ FUNCTION. IF REASON IS
FAST MANOUEVRE, LIMIT CAN BE
INCREASED BY SETTING "MAX RATE OF
TURN" LIMIT OVER 150 DEG/MIN.