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5.2 Alarm Codes
Description Text
ID
01
AIS: Tx malfunction
AIS: Antenna VSWR
02
exceeds limit
(VSWR - Voltage
Standing Wave Ratio)
AIS: Rx channel 1
03
malfunction
AIS; Rx channel 2
04
malfunction
AIS: Rx channel 70
05
malfunction
06
AIS: General failure
AIS; External EPFS lost
25 (*)
(EPFS = electronic
Position Fixing System
such as GPS)
AIS: No sensor position in
26
use
29
AIS: No valid SOG
information
30
AIS: No valid COG
Information
AIS: Heading lost/invalid
32 (*)
Installation Manual
Cause/Source
Reaction: The transponder unit stops transmission. If Alarm ID 01
VHF Antenna,
and ID 02 are simultaneously displayed, then a major antenna
cabling
problem has arisen.
Remedy:
Check if the antenna is AIS compatible (156-162 MHz) and if the
antenna cabling has a short circuit or is missing any contacts at the
connectors.
If the ID 01 is displayed as a stand alone message, then the unit
requires replacing.
Reaction: The transponder unit continues transmission.
VHF antenna,
Remedy:
installation
Check the antenna and the antenna cabling (RG214 / 50 Ohm cable
required).
Reaction: The transponder unit stops transmission on the affected
channel,
Internal error
Remedy;
If this alarm reoccurs regularly, then the transponder unit requires
replacing.
Reaction: The transponder unit stops transmission.
Internal error
Remedy;
The transponder unit requires replacing.
Reaction: The transponder unit continues operation using the
position data of the internal GPS. If there is no valid position data
available from the internal GPS, error 026 is additionally displayed.
No valid data on
Remedy:
Ch1, Ch2 or Ch3 is
Id 25 indicates that the sentences GLL, GNS, GGA, RMC cannot be
available
received. Check the sensor and the cabling; check if the system
that delivers the data is working. Check the baud rate settings of the
sensor inputs. AIS requires the protocol NMEA 0183 V3.0!
Reaction: The transponder unit continues operation.
No valid position
Remedy:
from internal GPS
Check the sensor cabling and the antenna of the internal GPS
or external
sensor.
position sensor
Reaction: The transponder unit continues operation and displays
No valid data from
SOG: N/A
external speed
Remedy;
sensor or internal
The sentences VBW, VTG, RMC cannot be received. Check the
GPS
sensor and the cabling; check if the system that delivers the data is
working. Check the baud rate settings of the sensor inputs. AIS
requires the protocol NMEA 0183 V3.0!
No valid data from
Reaction: The transponder unit continues operation and displays
external sensor or
COG: N/A
internal GPS
Remedy:
The sentences VBW, VTG, RMC cannot be received. Check the
sensor and the cabling, check if the system that delivers the data is
working. Check the baud rate settings of the sensor inputs. AIS
requires the protocol NMEA 0183 V3.0!
No valid data from
Reaction: The transponder unit continues operation
external sensor
Remedy:
(Gyrocompass)
The sentence for HDT cannot be received. Check the sensor and
the cabling, check if the system that delivers the data is working.
Check the baud rate settings of the sensor inputs. Mention AIS
accepts true heading only (no magnetic).
System Reaction / Remedy
21
Y1-03-0219 Rev. A
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