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6.MAINTENANCE & TROUBLESHOOTING
6-7
6.5 Error Messages
In addition to alarm messages your equipment displays error messages to alert
you of potential equipment trouble.
Error messages
Error message Meaning Remedy
COMMUNICATION ERROR
Communication between the control
unit and the processor unit is
interrupted for more than two
seconds.
Check the interconnection
cable between control unit
and processor unit.
A SUDDEN POWER FAILURE
HAS OCCURRED.
Power supply was interrupted for
more than two seconds.
Press any key on the control
unit.
RUDDER ANGLE ERROR
The rudder angle sent from the
rudder reference unit exceeded 55°.
Check the rudder reference
unit, rudder angle and its
connection.
RUDDER DRIVE ERROR
The rudder did not move more than
3° over 10 seconds after rudder
command.
Check the hydraulic system.
After the solving problem, do
the rudder test.
DRIVE UNIT ERROR. PLEASE
TURN OFF AND CHECK DRIVE
CIRCUIT.
Current of more than 50 A was
detected on the drive circuit without
rudder command.
Check the drive circuit.
DRIVE UNIT IS OVERLOADED.
PLEASE TURN OFF AND
CHECK DRIVE CIRCUIT.
Overcurrent was detected. Check the drive circuit.
DRIVE UNIT IS OVERHEATED. 80°C temperature in drive unit was
detected.
Check the drive unit system.
BYPASS/CLUTCH IS
OVERLOADED.
Current of more than 5 A was
detected on the bypass/clutch
circuit.
DISCONNECT B/C
No current on the bypass/clutch
circuit.
Check the bypass/clutch
circuit.
FU REMOTE CONTROLLER
ERROR
Command from the FU remote
controller exceeded 55°.
Check the remote controller
connection.
MISSING HEADING DATA
The heading data from the heading
sensor is missing for 600 ms.
Check the heading sensor
and interconnection cable..
HEADING DATA ERROR
Heading data with error flag was
detected three times continuously.
Check the heading sensor.
MISSING NAV DATA
The navigational data has been
interrupted for more than 15
seconds.
Check the navigator.
DEGRADATION OF NAV DATA
QUALITY
The navigation data was
incomplete.
Check the navigator settings.
PARAMETER ERROR OF NAV
MODE
The navigation data included an
error flag.
Continued on next page.