7-8
2. Countermeasures against Various Failures
2.2 There is no NMEA (Position data) input
The warnings about position data are:
1) If position data is not updated, the message “Warning:Update position” appears.
2) If NMEA data is interrupted, the message “EPFS error”.
To receive position data, set POSITION in “Setup menu” at “AUTO”. Refer to Page 4-8.
DIP switch S5-4 of CONTROL/MODE board must also be set at ON (C Loop) or OFF (RS-422).
Note) UTC timeNote) UTC time
Note) UTC timeNote) UTC time
Note) UTC time
The ship position and UTC time in NMEA data are displayed on DSC standby screen. The date and
time are printed out when selftest results, and transmitting/receiving messages are printed in AUTO.
Thus, it is recommended to choose sentence RMC including position, time and date, or ZDA and a
sentence including position data.
Receivable sentences
- GGA
- RMC
- RMA
- GLL
- ZDA
YES
YES
YES
YES(OK)
YES(OK)
NO(NG)
NO(NG)
NO
NO
NO
Set the system
--> POSITION AUTO
The connection is OK?
J5-#3:RD-A(+)
J5-#4:RD-B(-)
No position data on
DSC standby screen
Check the input sentences.
(See Page 4-19.)
Sentence selection
of navigation aids
Check the system setup.
POSITION in "Setup menu" is
set at "AUTO"?
Rectify the wiring.
Check the DIP switch setting.
[S5-#4] of CONTROL/MODEM board is OK?
*[S5-#4] --> ON : C.Loop
*[S5-#4] --> OFF: RS-422
Set the DIP switch.
Execute the loopback test.
Short-circuit between #1-#3 and
#2-#4 of IEC connector.OK appears?
See Page 5-7.
Exchange
CONTROL/MODEM board.
Failure of connected unit.
(NMEA data have problems.)
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