User's Manual

Table Of Contents
NACOS Platinum
ED 3100 G 140 / 04 (2011-11)
Operating Instructions
V-2 Alarm Management
V Alarms.fm / 10.11.11
V-26
TP Low Water Speed
The speed through the water (STW) of the selected sensor is so low that the TRACKPILOT might
not be able to steer the ship correctly.
This alarm can only appear if a speed sensor providing STW is installed but has not been selected
as system speed input.
Remedy: Switch over to manual steering, if it is obvious, that the TRACKPILOT is not able to steer
the ship correctly.
TP No Master MFD Selected
There is no MFD defined as the TRACKPILOT Master by user selection.
Special features: Acknowledgement can also be performed by clicking on the button
or by pressing the TrackPilot Master key on the keyboard.
The MFD on which acknowledgement takes place is automatically switched to act as the TRACK-
PILOT Master.
TP Position Drift
1)
Since the beginning of the long-term position drift computation in Track mode, a difference has built
up between the dead reckoning position and the position given by the position sensor, and this
difference is greater than a limit value which depends on the set track limit
2)
or on the sensor selec-
tion.
Special feature: Acknowledgement restarts the position drift calculation with a difference of zero.
Remedy:
- Select a more accurate position sensor or speed sensor or correct the manual set and drift
input.
- Select Manual DR (Dead Reckoning) instead of the position sensor and check the navigation
sensors presently used.
- Switch over to Course mode or Heading mode.
- Increase the track limit.
2)
TP Position Jump
During steering in Track Mode a position jump (e.g. mode change of the sensor, new sensor selec-
tion or manual position adjust) exceeding the set track limit (or, if the track limit is set to a low
value, a position jump exceeding a value which depends on the sensor type) has been detected.
Special feature: By acknowledgement, the new position is accepted.
Remedy: Increasing the track limit increases the tolerance with regard to position jumps and
strengthens the filtering of the received position-data.
1)
Depending on the system configuration this alarm can be switched off on service level.
2)
In the case of ships with DNV NAUT-AW approval, the limit value depends not on the track limit but on the
selected speed sensor and on the selected position sensor.