A-7 Appendix A Alert and Maintenance INFO List
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APP A
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Message Subject Explanation Category
POSN(Automatic Changed) TCS Position sensor becames available before
steering mode has been changed.
B
Power(AC Low Voltage) Power
supply
AC Power supply OFF B
Power(DC Low Voltage) Power
supply
DC Power supply voltage low B
Power Fail Control
section
3.3V/2.5V/1.5V/1.2V and other receiving
power dropped or stopped
B
Power(Fan) Power
supply
The fan in the power supply unit is broken B
Power(TXRX, Failed) Power
supply
There is an error in the power supply unit for
the radar antenna.
B
PROC(AZI) RADAR/
AIS
Azimuth signal abnormality (signal processor) B
PROC(HL) RADAR/
AIS
Heading line signal abnormality (signal
processor)
B
PROC(Interrupt #n) RADAR/
AIS
Stern interrupt abnormality in the signal
processor
B
PROC(Trigger) RADAR/
AIS
Trigger signal abnormality (signal processor) B
PROC(Video) RADAR/
AIS
Radar video signal abnormality (signal
processor)
B
RADAR PROC(Data) RADAR/
AIS
RADAR PROC or RADAR Draw control
failure
B
RIF(Communication error) Control
section
Communication error with Companion
MPU-RIF.
B
RTC Abnormal Control
section
RTC is abnormal. B
Safety contour monitoring
stopped.
ECDIS Safety contour monitoring confirmation
stopped
B
S-J I/O <->
AP(Communication error)
S-JOY Communication error between S-J I/O and AP B
S-J I/O(Unit failure) S-JOY S-J I/O Unit failure B
S-J I/O Time Out S-JOY Communication error between S-J I/O and
the display unit
B
S-JOY <-> S-J
I/O(Communication error)
S-JOY Communication error between S-JOY and
S-J I/O
B
S-JOY(Unit failure) S-JOY S-JOY unit failure B
Speed(Automatic Changed)
TCS Speed sensor becames available before
steering mode has been changed.
B
STW Speed(invalid) INS There is a format error or a status error of the
STW data.
B
STW Speed(unavailable) INS The STW data cannot be received. B
Track Control Stopped TCS TCS stopped B
TXRX(AZI) Scanner
Unit
Azimuth signals cannot be recognized in the
radar antenna.
B
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