Kongsberg cJoy OT, Руководство оператора

Страница: 166 / 208

Message explanations
385585/C A-45
Power failure backup UPS
Description: This message is reported if a power failure on the Backup system is detected.
The reason for the fault may be UPS (Uninterruptible Power Supply) failure.
The method of detection is a digital input on the Backup system.
Possible
consequences:
Backup system unusable.
Corrective
actions:
Check UPS for the Backup system.
Do not use the Backup system.
Power limits reached on swbd [#]
Description This message is reported if the power consumption exceeds the warning limit for
the swbd and is based upon analogue generator feedback readings.
The reason for the fault may be that the sum of the generator feedback readings
are close to maximum available power for the swbd.
The method of detection is comparison of the measured power consumption
(calculated as a sum of the generator feedback readings) with nominal generator
effect.
Additional
information
•
Power used by consumers (other than DP).
•
Power available on the swbd.
•
Power used by DP.
Possible
consequences
A power demand reduction if the power consumption continues to increase which,
in turn, may cause a position dropout.
Corrective
actions
If possible, start and connect more generators.
Reorganize the swbd-configuration.
Power out of range on swbd [#]
Description This message is reported if the thruster power consumption is greater than
maximum available power for the swbd.
The reason for the fault may be an erroneous input from the thruster, generator
or swbd connections, a fault in the analogue input interface or a fault in the
cabling.
The method of detection is an analogue input from either the thruster pitch
measurements or the generator power feedback measurements compared with
programmed maximum/minimum power limits.
Possible
consequences
Power management system no longer functions correctly.
Power demand reductions performed/not performed correctly.
Corrective
actions
Avoid critical situations where power use is critical until the error is corrected.
Replace the appropriate input interface.