30. Alarms
30-35
30.8.4 List of steering alarms only with Yokogawa Autopilot
Alarm number 2471: 2471 AP MODE CONFLICT - USE AUTO/2/9
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YOU HAVE TRIED TO ACTIVATE TRACK
STEERING OR YOU HAVE REACHED THE END
OF THE ROUTE, BUT YOU HAVE NOT LEFT
'TRACK' MODE CHANGE IMMEDIATELY TO
'AUTO' MODE
Alarm number 2506: ROUTE:USE AUTO CONTROL /2/9
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THIS IS INSTRUCTION TO CHANGE
STEERING MODE. THIS ALARM IS
GENERATED IF THERE ARE NOT
SUFFICIENT SENSORS AVAILABLE TO
CONTINUE TRACK MODE
Alarm number 2511: ROUTE:AUTO RESUME DISABLE /1
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IF ALARM 2471 HAS BEEN GENERATED
AND LATER CONDITION FOR ALARM 2471
DISAPPEARS WITHOUT CHANGING STEERING
MODE FROM “NAVI” TO “AUTO” OR “HAND”.
FIRST CHANGE STEERING MODE TO “AUTO”
OR “HAND” AND CHECK THAT PRECONDITIONS
FOR ROUTE STEERING ARE FULFILLED.
Alarm number 2512: USE NFU RUDDER CONTROL /1/8
------------------------------------
RUDDER SERVO UNIT CANNOT BE
CONTROLLED BY YOKOGAWA STEERING
CONTROL UNIT, THIS ALARM IS GENERATED
TO CHANGE NON FOLLOW UP CONTROL OF
RUDDER(S). FIRST CHANGE USING SYSTEM
SELECTOR SWITCH FROM “FU” TO “NFU” AND
THEN USE NON-FOLLOW UP STEERING LEVER
TO CONTROL RUDDER(S).
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