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Simrad GC80/85 Dual MK2 Gyro Compass
Alarm code
Main Power Fail
HDG. Difference
Auto Switch Fail
No1 GYRO Comm.
No2 GYRO Comm.
No1 GYRO Data
GYRO 1 / GYRO 2 data
No2 GYRO Data
EXT. Com Alarm
EXT. Data Alarm
PLT. Com Alarm
PLT. Data Alarm
MSIF Comm. (Rcv)
MSIF Comm. (Trans)
988-12720-002
Alarms generated by the Dual system
Alarm content
Main power is
Main power from GYRO 1 or GYRO 2 is lost.
abnormal
Heading difference between GYRO 1 and GYRO 2 true
Heading difference
bearing exceed the predefined heading difference
alarm.
Auto switch is
Abnormalities in the "system automatic switch"
abnormal
processing part.
GYRO 1 / GYRO 2
GYRO 1/GYRO 2 has stopped or serial signal from the
communication off
indicated Gyro is lost (timeout 15 sec).
GYRO 1 / GYRO 2 data abnormal (timeout 17 sec).
abnormal
EXT communication
External sensor has stopped or serial signal from
off
external sensor is lost (timeout 15 sec).
EXT data abnormal
External sensor data abnormal (timeout 17 sec).
Auto pilot
Automatic steering system has stopped or serial signal
communication off
from automatic steering system is lost (timeout 15 sec)
Auto pilot data
Automatic steering system data abnormal (timeout 17
abnormal
sec).
System internal
Serial signal from a control panel to an I/O signal
receive abnormality
processing part is lost (timeout 15 sec).
System internal
transmission
abnormality
Possible cause
138
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