Alarm Codes - ACR Electronics NAUTICAST AIS INLAND Manual

5.2

Alarm Codes

ID Description Text
01 AIS: Tx malfunction
AIS: Antenna VSWR exceeds
02 limit (VSWR - Voltage
Standing Wave Ratio)
03 AIS: Rx channel 1 malfunction
04 AIS; Rx channel 2 malfunction
AIS: Rx channel 70
05
malfunction
06 AIS: General failure
AIS; External EPFS lost
25 (EPFS = Electronic Position
Fixing System such as GPS)
26 AIS: No sensor position in use
29 AIS: No valid SOG information
30 AIS: No valid COG Information
32 AIS: Heading lost/invalid
35 AIS: No valid ROT Information
53 AIS: BATTERY SOON LOW
AIS: PRESS ENTER TO EXIT
55
1W/AUTO TX MODE
56 AIS: ENTER MMSI NUMBER
Y1-03-0211G
Cause/Source
Reaction: The transponder unit stops transmission. If Alarm ID 01 and ID
02 are simultaneously displayed, then a major antenna problem has arisen.
Remedy:
VHF Antenna,
Check if the antenna is AIS compatible (156-162 MHz) and if the antenna
cabling
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:
Check the antenna and the antenna cabling (RG214 / 50 Ohm cable
installation
required).
Reaction: The transponder unit stops transmission on the affected channel,
Remedy;
Internal error
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
received. Check the sensor and the cabling; check if the system that
is available
delivers the data is working. Check the baud rate settings of the sensor
inputs. AIS requires the protocol NMEA 0183 V3.0! Normally Inland
Vessels have no external EPFS  no action required!
No valid position
from internal
Reaction: The transponder unit continues operation.
GPS
Remedy:
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: N/A
No valid data
Remedy:
from external
The sentences VBW, VTG, RMC cannot be received. Check the sensor
and the cabling; check if the system that delivers the data is working.
speed sensor or
Check the baud rate settings of the sensor inputs. AIS requires the protocol
internal GPS
NMEA 0183 V3.0!
Reaction: The transponder unit continues operation and displays COG: N/A
No valid data
Remedy:
from external
The sentences VBW, VTG, RMC cannot be received. Check the sensor
and the cabling, check if the system that delivers the data is working.
sensor or internal
Check the baud rate settings of the sensor inputs. AIS requires the protocol
GPS
NMEA 0183 V3.0!
Reaction: The transponder unit continues operation
Remedy:
No valid data
The sentence for HDT cannot be received. Check the sensor and the
from external
cabling, check if the system that delivers the data is working. Check the
sensor
baud rate settings of the sensor inputs. Mention AIS accepts true heading
(Gyrocompass)
only (no magnetic). Normally Inland Vessels have no Gyrocompass 
no action required!
Reaction: The transponder unit continues operation
Remedy:
No ROT indicator
The sentence for ROT cannot be received. If a Rate Of Turn indicator is not
is used.
in use, then it suffices to just acknowledge the alarm. The Alarm Status will
No valid data 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
from external
working. Check the baud rate settings of the sensor inputs. The AIS
sensor
requires the protocol NMEA 0183 V3.0! Normally Inland Vessels have no
ROT indicator  no action required!
Battery is soon
Reaction: Own ship data is lost after powering on/off the system.
Remedy: consider to contact Technical Support for additional help
out of capacity
Reaction: Conditions for enabling 1 Watt TX power are not valid.
This means that:
Conditions for
the speed is >3kn and / or
enabling 1 Watt
the navigational status is NOT moored / at anchor and / or
TX power are not the ship type is NOT "Tanker"
Remedy:
valid
Check the conditions (SOG, Navstat, Shiptype)
if GPS is valid ( a invalid GPS causes also this alarm)
Reaction: During the initial boot or after "factory settings" the user is asked
No valid MMSI
to enter a valid MMSI. As long as this is not done, the system does not
entered. transmit.
Remedy: Enter a valid MMSI
System Reaction / Remedy
91