C-Nav 1000 R4, Installation Manual, Page: 32 / 82

SYSTEM CONFIGURATION AND SETTINGS Page 26
When the system is started, there may be some alarms displayed depending
on which sensors that have been connected to the system. If any alarms are
displayed, take notice of the alarms displayed and then acknowledge them
by pressing the
ENTER
key until the alarms are not displayed any more.
The R4 Navigation Sensor should—when correctly installed—provide a
position quickly, within approximately 60 seconds. SBAS lock requires
approximately 30 seconds to acquire, and radio beacon lock 60 seconds. It
can however take up to 5 minutes for a full ionospheric map to be received
from SBAS, and optimum accuracy obtained. The status of the Navigation
Sensor is indicated by its LEDs, as was described in section 6.2 above.
To continue the system configuration, see the following sections.
6.4 Viewing Active Alarms
In addition to being indicated by pop-up dialogs, the currently active alarms
can be seen in the
Alarm List view in the Alarms & Msgs mode. The view is
accessed by pressing the
MODE
key followed by the function keys
ALARMS & MSGS and ALARM LIST
. The view is illustrated below.
On entrance, the view only displays the enabled alarms. To view the status
of alarms that have been disabled (if any), press function key
Show Disabled
.
Active alarms are indicated with an exclamation mark (!).
6.5 GPS Connection Lost Troubleshooting
The R4 Display continuously monitors the serial connection to the R4
Navigation Sensor. If the connection is lost or never established, the R4
Display will activate the alarm “GPS Connection Lost” and show the
status icon. In this state, the Display can not communicate with the
Navigation Sensor. Perform the following steps to troubleshoot the
condition:
1. Verify that the correct cables have been connected to the R4 Display
and to the R4 Navigation Sensor. Note that both cables use 18-pin
Conxall male connectors. The cable marked “7000 108-133” (with 13
pins mounted in the connector) should be connected to the R4 Display.
The cable marked “7000 109-011” (with 18 pins mounted in the
connector) should be connected to the R4 Navigation Sensor.