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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
26
in use
29
AIS: No valid SOG
information
30
AIS: No valid COG
Information
AIS: Heading lost/invalid No valid data from
32
AIS: No valid ROT
35
Information
Installation Manual
Cause/Source
Reaction: The transponder unit stops transmission. If Alarm ID 01 and
VHF Antenna,
ID 02 are simultaneously displayed, then a major antenna problem has
cabling
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
Id 25 indicates that the sentences GLL, GNS, GGA, RMC cannot be
is 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 sensor.
or external
position sensor
Reaction: The transponder unit continues operation and displays SOG:
No valid data from
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!
Reaction: The transponder unit continues operation and displays COG:
No valid data from
N/A
external sensor or
Remedy:
internal GPS
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!
Reaction: The transponder unit continues operation
Remedy:
external sensor
The sentence for HDT cannot be received. Check the sensor and the
(Gyrocompass)
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).
No ROT indicator
Reaction: The transponder unit continues operation
Remedy:
is used.
The sentence for ROT cannot be received. If a Rate Of Turn indicator is
No valid data from
not in use, then it suffices to just acknowledge the alarm. The Alarm
external sensor
Status will store the information that no ROT sensor is available.
Otherwise, 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!
43
System Reaction / Remedy
Y1-03-0204 Rev.K
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