Kongsberg cJoy OT, Руководство оператора

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Message explanations
385585/C A-25
Additional
information
Load on the generator.
Possible
consequences
An error on the load signal will not have any consequence as long as the generator
is disconnected.
Two or more generators on affected swbd:
The DP system will calculate with too low power available on the affected swbd if
the generator is connected (failure in connect signal). This might cause the DP
system to erroneously limit the thrust on the affected thrusters.
One generator on affected swbd:
Blackout prevention will be disabled for this swbd. DP Consequence Analysis will
report drift off prematurely.
Corrective
actions
Verify with engine control room if it is the connect signal or the load signal that is
wrong.
Replace appropriate input interface.
GPS [#] invalid
Description The position data received from the GPS unit contains some information in
addition to the measured position (such as time, number of satellites and quality
data). In this case, one or more of these additional data qualifiers have values
outside legal limits.
Possible causes are:
QUALITY: Differential telegram not available.
SATELLITES: Too few satellites.
HDOP: Horizontal Dilution Of Precision is too high.
UTC: Universal Time Coordinated frozen.
Possible
consequences
Depending on the configured filter action, the measurements may be rejected.
Corrective
actions
On the DP, enable another position reference system. External to the DP, check
the GPS unit and its configuration, or adjust filter parameters.
GPS [#] invalid pos received
Description This message is reported if a status in the position data from the GPS indicates
that the data received is not valid.
The reason for the fault may be that the GPS fix is not available or invalid, or a
poor satellite configuration.
Possible
consequences
Position measurements from the reference system that provides the invalid data
will be rejected.
Corrective
actions
No actions necessary if the alarm situation occurs only now and then.
If the alarm is repeated frequently, enable another position reference system.
Check the position reference system that provides the invalid data.