30. Alerts
30-5
30.11 Backup Navigator Alert
Track Control System (=TCS) standard IEC 62065 require "Backup Navigator Alert". It is intended to be connected
to Central Alarm System. The idea behind the IEC 62065 requirement for "Backup Navigator Alarm" is that if the
navigator on duty cannot handle the situation (i.e. he does not have time enough to check and to acknowledge all
track control related alarm) then more person(s) are called automatically to the bridge. Alarm Transfer System
included into Central Alarm System will then transfer "Backup Navigator Alarm" to intended person(s).
If, during Track Control (= Program track, GOTO Track, GOTO WPT, "Track", "GoSEA", "GoAW" etc.),
the alert "2451 Route: WP approach alarm" is not acknowledged within 30s of wheel-over line, the "Backup
Navigator Alarm" is released.
"Backup Navigator Alarm" is related to following alarms (Furuno FAP-2000, YOKOGAWA PT-500A or TOKYO
KEIKI PR-6000):
Alert "400 Filter: POSN unreliable"
Alert "408 Filter: SPD below xx KN"
Alert "410 Filter: POSN source CHG"
Alert "451 Route: WPT approach alarm"
Alert "458 Route: Last WPT approach"
Alert "497 Route: Stop - Sensor Fail"
Alert "705: Gyro error"
Alert "706: Gyro error"
Alert "708: Log error"
Alert "708: Dual axis log (WT) error"
Alert "709: Dual axis log (BT) error"
Alert "712…716: Position equipment error"
Alert "727…731: Lost DGPS"
Alert "733: Radar spd/crs error"
Alert "755: Gyro error (Trackpilot)"
Alert "488 Track Control Stopped"
"Backup Navigator Alert" related only with FURUNO FAP-2000 Autopilot
• Alert "489 Route: Changed to Goto WP"
• Alert "496 ProgTrack: Stop - Sensor Fail"
"Backup Navigator Alert" related only with TOKYO KEIKI PR-6000 Autopilot.
Alert "489 Route: Changed to GoSEA"
If ECDIS is a part of a Track Control System, the "Backup Navigator Alert" should be connected. If ECDIS is NOT
part of Track Control System, then "Backup Navigator Alert" is not generated.
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