DTUTT1K2HP1D
ELETTRONICA
17
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User Manual
Rev. 1.0 - 18/06/12
When the apparatus is set to EXT INT or AUX INT, the mute RF signals of the
exciters are activated and therefore both exciters are inhibited. When the external
interlocks are released, the system re-evaluates both exciters as during the phase
from OFF to ON.
6.4.4 Phase from ON to OFF
When the apparatus is set to OFF status and you press the ON button, the power
supply of the exciters is activated and the logic starts to evaluate the exciters.
During the evaluation phase, the WAIT LED stays ON.
When the apparatus is turned OFF, it memorizes the exciter on air. Consequently
when the machine restarts it can attempt to restore the previous conditions. On
the machine restarting, if the exciter that is to be aired does not attain the preset
power level whereas the spare one is operational, the apparatus performs the
changeover when the evaluation time (120 s.) expires.
On the machine restarting, if both exciters do not attain the preset power level,
the apparatus airs the one that had been present when the machine was turned
off, after the evaluation time has expired.
6.5 Protections and alarms
The
DTUTT1K2HP1D
contains a complete protection and alarms system, both at
the individual modules level and at the control unit level.
The modules are fitted with a micro-processor-based system that manages any
malfunctions locally. The associated information is communicated to the control
unit for displaying and storing the events and for the centralized management of
the events that require it.
Certain LEDs of the
DTUTT1K2HP1D
panel are dedicated to the management
of the alarms:
LED
Description
WARNING
This LED indicates a warning (something is
not correctly working, but the amplifier is still
working)
FAULT
This LED indicates a fault (the transmitter
is shut off, the operator’s intervention is
required)
WAIT
This LED indicates the wait status (the
transmitter is temporarily off, it will be
restarted as soon as the reason that keeps
it from working will be removed, or after
a fixed amount of time depending on the
reason of the intervention of the protection
system)
The ALARM RESET button is used for resetting the alarms and restarting the
machine.