User's Manual Part 4

T ECHNICAL D OCUMENTATION P ROTECTING P EOPLE AND A SSETS
®
D
ATE
:
27
M
ARCH
2017
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V
ERSION
:
1.8
79
R
ANGER
®
-
X5
R
ADAR
S
YSTEM
(M
OBILE
)
F
UNCTIONAL
O
VERVIEW AND
T
HEORY OF
O
PERATION
EEC
®
|
C
OMPANY
P
ROPRIETARY
4.3.2. Software Interlocks
Software interlocks are used to interrupt radar operations if certain conditions are present.
Configuration of the software interlocks is through the extensible markup language (XML) for the
I/O devices used by the BITE system. If a condition exists that is set to disable system operation,
the RCU will shut down the associated function and produce a BITE error message indicating the
fault that caused the error to occur.
All hardware interlocks are also software interlocked and produces a corresponding BITE
message. Software interlocks that disable the transmitter produce a tx_interlock fault BITE
message and the RCU will issue a “RADIATE OFF” command. Software interlocks that disable
both Azimuth and Elevation axes will generate a “SERVO OFF” indication from the RCU.
The following Software Interlocks are generated by the RCU:
• TX Interlock - opens the Radiate Command disabling the Transceivers.
• EL Interlock - disables elevation axis Antenna movement.
• AZ Interlock – disables azimuth axis Antenna movement.
• Mod Power Interlock – turns off the Transceivers.
• Antenna Power Interlock – removes primary power to the Pedestal using PED POWER
RESET command.