Appendices
Copyright © 2015 Coda Octopus Products Ltd
141
F180R MOTION Sensor User and Reference Guide
Q : The system is not acquiring a navigation or heading lock. Could this be due to the GNSS
antenna connections?
A : Before starting troubleshooting the GNSS antennas and antenna cables you should make
sure that the internal GNSS receiver cards are operating normally. This check is quickly carried
out in MOTION Control by opening the Connection Properties dialog from the Diagnostics
menu.
You will be presented with the below image and you should make sure that both the Internal
Primary and Secondary GNSS data are received by the F180R System. The system is faulty if the
value for "Data Received" is zero or the number of "Data Skipped" is high compared to the
"Data Received". If this is the case, please take a screenshot and email it to
support@codaoctopus.com.
If the system passes the GNSS receiver boards integrity check, but is still not able to acquire
navigation or heading lock, the following steps will assist in pinpointing a possible fault with
the antennas and antenna cables.
By connecting the cables according to the below schematics and then read the number of
satellites visible to the primary receiver (see Heading Initialisation Dialog available in the
Diagnostics menu) , we are able to identify what component is at fault in the setup. A test has
failed if the F180R System is not able to see any GPS satellites and please let the system run
for at least five minutes for each case in order to give the receiver time to locate satellites.
Figure 109: Antenna Connection Test
Primary Cable (Red) Fault
Secondary Cable (Green) Fault
When system fault has been identified, please contact support@codaoctopus.com for advice
on how to obtain replacement parts.
To Next Page
Loading...