C-Nav 1000 R4, Installation Manual

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SYSTEM CONFIGURATION AND SETTINGS Page 27
2. Verify that power is correctly applied to the R4 Navigation Sensor,
indicated by the red LED marked “PWR” being lit on the Sensor. If not,
check the wiring of the positive and negative power wires.
3. Verify the wiring of the interconnection between the R4 Display and R4
Navigation Sensor. Ensure that the TX lines of the R4 Sensor port on
the R4 Display are connected to the RX lines of the System port on the
R4 Navigation Sensor, and vice versa. Ensure that TX-A is connected
to RX-A, TX-B to RX-B and so on, as illustrated in Table 6-1.
Table 6-1. Connections between R4 Display and R4 Navigation Sensor
The “R4 Sensor” port
on the R4 Display
The “System” port on the
R4 Navigation Sensor
TX-A
Ù
RX-A
TX-B Ù RX-B
RX-A
Ù
TX-A
RX-B Ù TX-B
See the wiring diagram in appendix A.8.
4. The View Raw Data view can be used to monitor the traffic on the R4
Sensor port, which gives information on if any data are received from
the R4 Navigation Sensor. The
View Raw Data view is described in
section “Port Rate Config” in the Reference chapter of the Operator’s
Manual. If the
View Raw Data screen displays garbage characters, it is
possible that the A and B wires of the interconnection between the R4
Display and R4 Navigation Sensor have been interchanged. See step 3
above. If this does not help, contact your R4 Navigation System dealer.
6.6 Position Data Lost Troubleshooting
The alarm “Position Data Lost” indicates that no valid positioning
information is received from the R4 Navigation Sensor. If the alarm “GPS
Connection Lost” also is active, then the communication with the
Navigation Sensor is not functioning and should be resolved first, as
described in section 6.4 above.
When only the “Position Data Lost” alarm is active, this indicates that the
R4 Navigation Sensor is not receiving a good enough GPS satellite signal to
produce a position. The status icon will be shown. Check the connection
of the antenna cable to the Navigation Sensor and to the MGA-2 or MGL-4
antenna. Also check the installation and placement of the antenna, and
ensure that it conforms to that specified in section 4.2. The
Satellite Info
view, described in step 3 below, can give further details on received position
data.
6.7 System Functional Check
When the R4 Navigation System has been installed according to the
procedures described in the previous sections and no “GPS Connection
Lost” or “Position Data Lost” alarms are displayed, it is recommended to
make a first functional check of the system. This can be done following the
procedure described below.