User's Manual

Table Of Contents
ED 3100 G 140 / 04 (2011-11)
Operating Instructions
III-3 Permanent Area for Navigation
III Main Applications.fm / 10.11.11
III-35
NACOS Platinum
3.2.2 Heading and Speed
This group displays information about the actual values for
heading and speed and offers the possibilities to choose different
heading and speed sensors
1)
.
In front of each depiction of one of the sensors, there may be a
symbol indicating a warning or an alarm.
Table III / 3 Integrity Marks for Heading/Speed Sensor Data
The meaning of the indicators is explained in detail in chapter
V-ALARMS
.
The values for STW, COG and SOG will go into alarm status if RADAR is selected as the CCRP,
but no radar transceiver is selected.
Heading - HDG
The value for heading is the direction the bow of the own ship is pointing at. It is
derived from the compass system of the ship. Behind the heading value, the actual
choice and the selection mode of the heading sensor is displayed.
AUTO
Means that the heading sensor is chosen by the system automatically. The best
available sensor will be used. If a failure occurs on the actual sensor, the backup
sensor is chosen, if available, and a warning is given.
Gyro x
From the number of gyro compasses that are connected to the system, one can be chosen to be used
as heading sensor. Sensor selection mode is manual.
1)
The sensor selection list is depending on the navigation sensors connected to the system.
Yellow
Input from the process is disconnected in the software, and the value is entered manually by
the operator
Red
Error in the Control and Supervision system, the indication is invalid or the value received
from the sensor is outside the legal limits
Be aware that a missing or wrong speed input to the compass system can also produce
remarkable course errors.