OPERATING MANUAL FLARM COLLISION WARNING UNIT
Version 4.06E
Page 7 of 12
March 28, 2009
8.
Fault Finding
If a fault should occur during start-up self-test or subsequent operation, then all four green status LEDs will
flash in unison for 30 seconds, while the red collision LEDs will give a binary indication of the most serious
fault. The fault display can be stopped before 30 seconds has elapsed by pushing the button
.
For safety reasons FLARM will not start up if there is a fault. FLARM may not be used if a fault has been
reported or indicated. Limited operation is possible if there is an indication of a problem with the obstacle
data bank or data recorder.
0x11
Fault: Software out of date
(needs GPS reception)
No operation
0x12
Fault: Software integrity violation
No operation
0x21
Fault: Low Voltage
No operation
0x31
Fault: Internal GPS communication
No operation
0x32
Fault: Faulty GPS configuration
No operation
0x41
Fault: Internal radio communication
No operation
0x51
Fault: General internal communication
No operation
0x61
Fault: Flash memory
No operation
0x71
Fault: Pressure sensor
No operation
0xF1
Fault: Other fault
No operation
0x81
Indication: No obstacle data bank
Operation possible
0x91
Indication: Flight recording not possible
Operation possible
0xA1
Indication: Error with SD-card configuration file
Operation possible
The communications faults itemised above indicate if internal modules within FLARM are not communicating
correctly with each other. For reasons associated with the system, reduced radio range cannot be detected
by a single unit alone.
