Furuno FEA-2807 - Page 456

30. Alerts
30-26
Alert number 490: DISABLED: NEEDS LOG SENS. /3
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'ROUTE STEERING' MODE CAN BE USED
ONLY WHEN THERE IS AN INDEPENDENT
SPEED SOURCE. ALTERNATIVES ARE A
LOG OR TWO POSITION RECEIVERS
Alert number 491: DISABLED: NEEDS DIFF POS. /3
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'GOTO TRACK' MODE CAN BE USED ONLY
IF A HIGH-PRECISION POSITION SENSOR
IS IN USE WITH KALMAN FILTER.
Alert number 492: ROUTE: NEEDS DIFF POS. /5/12
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'GOTO TRACK' MODE CANNOT CONTINUE
WITHOUT A HIGH-PRECISION POSITION
SENSOR. STEERING MODE IS
AUTOMATICALLY CHG "GOTO WPT" WITH
ALERT 489:ROUTE: CHG TO GOTO WPT
Alert number 493: PROGTRACK: NEEDS FILTER ON /3/10
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A WARNING THAT YOU ARE USING PROGRAM
TRACK WITHOUT FILTERED POSITION
AVAILABLE.
Alert number 494: PRGTRACK: NEEDS LOG SENS. /3/10
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A WARNING THAT YOU ARE USING PROGRAM
TRACK WITHOUT A LOG SENSOR OR
WITHOUT TWO POSITION SENSORS
Alert number 495: PROGTRACK: NEEDS DIFF POS. /5/12
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A WARNING THAT YOU ARE USING PROGRAM
TRACK WITHOUT A HIGH-PRECISION
POSITION SENSOR
Alert number 496: PRGTRACK: STOP-SENSOR FAIL /3
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GYRO, SPEED AND/OR POSITION DATA IS
NOT RECEIVED CORRECTLY.
Alert number 497: ROUTE: STOP-SENSOR FAIL /3
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GYRO, SPEED AND/OR POSITION DATA IS
NOT RECEIVED CORRECTLY.
Alert number 498: USE MANUAL RUDDER CONTROL /5/12
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CHANGE IMMEDIATELY TO DIRECT CONTROL
OF RUDDER. THIS ALERT IS REMINDER
THAT TRACKPILOT HAS LOST GYRO
HEADING. IT IS REPEATED EVERY TWO
MINUTES.