NAVIS NavDP 4000. Operation Manual
3.3
Save a Screenshot as a File
For saving a screenshot doubleclick (or press on the touchscreen) on the CPU master indicator. The system generates
the following message “The following screenshots have been generated in folder XXX”, where XXX is the full file
address.
The default file format is bmp, the default file location is the “ShipName/Out/” folder.
3.4
Taking Control
Never set the Mode Selector to
IJ
or
DP
position unless the proper control system is switched on. In normal operation
all the control systems are to be switched on. If the control system is switched on, but the Mode Selector is set to another
position, the softkeys at the bottom of the screen are grey and disabled. Only the
ENTER
,
Select window
,
Silence
and
ACK
softkeys are lit up and enabled. You can use the enabled softkeys to select windows and parameter pages, changing
parameters, viewing information (including the signals and data being received from the thrusters, sensors and reference
systems) and acknowledging messages; however, you cannot control the vessel.
To transfer control to the IJ system, set the Mode Selector to
IJ
position. The softkeys assigned to this control system
become active.
To transfer control to the DP control system, set the Mode Selector to
DP
position. The softkeys assigned to this
control system become active.
3.4.1
Master/Slave Stations
For DP2 Class Systems, one of the DP-A and DP-B control systems is
the master
, while the other is
the slave
. The
vessel can only be controlled from the master system. You can transfer control to the slave system. To do that, press and
hold for two seconds the
Take Control
button on the Main Control Panel of the slave system.
If the Portable Control Panel is connected to the control system, you can transfer control in the same way.
3.5
Failure Modes
3.5.1
For DP1 Class Systems
In case of the DP control system fails, set the Mode Selector to IJ position and start control over the vessel from the
IJ control system. Note that only a few operational modes are available from this system, therefore, the IJ control system
would chiefly be used for safely terminating the current operation.
3.5.2
For DP2 Class Systems
In case of either DP-A or DP-B control system fails, control is automatically transferred to the other control system.
If the Mode Selector is set to the
Manual
,
AP
or
IJ
position, however, only one of the DP-A or DP-B control systems
is switched on (or capable of working), you can further set the Mode Selector to the DP position, and control will be given
to an operable control system (DP-A or DP-B, dependently on which of them is operable).
If during operation you loose the DP control system in total (that is much more severe fault compared to a single
failure), you can set the Mode Selector to
IJ
position, so as to complete the current operation safely from the IJ control
system.
3.5.3
Multi-WS system
The system generates a priority list of workstations like WS1 WS2 ... WSn. In case the master workstation discon-
nection the control is transferred automatically to the first active station in the list.
3.6
Switching Off
There are two ways of switching a control system off and shut down its control computer correctly. However, whatever
way you prefer, first set the Mode Selector in the
OFF
position. Then use one of the ways described below.
55
Doc. 000.JDP-10000-OME, rev.3.3.13/“2102.$–17A-Advanced”
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