46
3.2 Alarms/events list
There is an “Alarm management” module.
In order to check the alarm conditions, physical and logical digital inputs are used.
The status of each input is sampled and the condition is then logically processed by a
combinational network so as to establish whether the alarm or signalling is active.
The minimum intervention time is 100ms.
This module is repeatedly performed with the same priority as ALC management, so
as to constantly monitor the alarm cause onset and therefore to intervene within the
required time frame.
A log stores the sequence of the last events generating alarms with the date and time
of activation.
The alarms/event list which can be found is as follows:
Alarm/event Description
“000 CORRECT WORKING”
This indicates correct equipment operation.
The “On air” event has higher priority.
“001 SYSTEM RESET”
This indicates that the alarm reset is in
progress. All stored and inactive alarms are
removed from the list.
“002 EEPROM CHKSUM ERROR”
This indicates that the stored data is not relia-
ble any longer and the machine is reconfigu-
red according to the default parameters.
“003 BLOCKED”
This indicates that the machine is blocked
after making 5 restore attempts. the user
must reset in order to allow the equipment to
restart.
“004 STOP”
This indicates that the equipment is in stand-
by mode and is ready to start without alarms.
“005 -3dB CARRIER”
This indicates that the equipment has been
delivering power at least 3dB less than the
target set, for at least a minute in start-up and
5 seconds of normal operation.
“006 HIGH REF PWR”
This indicates that the level of reflected output
power is too high, meaning that the equip-
ment will turn off in three block out.
“007 MIN 12V”
This indicates that the negative voltage refe-
rence is altered and prevents correct operation
of the protections. Stop in three block out.
“008 RF AMP. FAULT”
This indicates a fault on one or more RF .
“009 RF AMP. FAULT DERATING”
This indicates a fault on one or more RF mo-
dules,
which implies a reduction in the overall maxi-
mum deliverable power.
“010 RF THERMAL DERATING”
This indicates an excessive temperature on
the RF modules which implies a reduction in
the maximum output power.
“011 RF OVER TEMPERATURE”
This indicates that the maximum operating
temperature has been exceeded, thus causing
machine turn off in three block out. This pro-
tection intervenes in extreme cases in which
the Derating mechanism is not sufficient to
make the temperature values go back to
normal.
“012 PSU FAULT”
This indicates the malfunctioning of
the power supply(ies).
“013 PSU CURRENT DERATING”
This indicates power supply overload which
causes a decrease in the power delivered.
“014 PSU OVER CURRENT”
This indicates that the machine switches off if
1 minute after derating the current still does
not decrease.
“015 PSU THERMAL DERATING”
This indicates power supply overheating
which causes a decrease in the power delive-
red.
Instructions for use
To Next Page
Loading...
