PJ5KPS
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User & Technical Manual
Rev. 1.5 - 08/02/06
Each RF amplifier module is controlled by a microprocessor card, connected through
a RS485 bus to the other microprocessor cards of the machine.
The switching power supply included in each amplifier module generates the feeding
supply of the active devices. The generated voltage is adjustable and commanded
by a microprocessor card included in the module. The card adjusts the supply and
the polarization current (gate) of the modules, thus controlling the emitted power.
On each module there is a trimmer for the manual adjustment of the power. The
trimmer acts as a limiter. This means that if the automatic adjustment of the power
sets a nominal output value, the trimmer can only reduce it, and not increase it.
7.5 Alarms
The menu Alarms of the control unit reports all the events connected to possible
malfunctionning of the equipment or due to external causes.
Each registration contains the reference to the concerned module, the kind of event
and its date and hour.
The module that detected the event is indicated by one of the following acronyms:
•
C.U. Control Unit
•
P.S.
Power Supply
•
R.F.X Amplifier module X (from 1 to 5)
•
R.F.C Combiner/Splitter
The type of event allows to identify the origin and the consequence of the fault. The
first letter of the type of event (eg F-C.B. Blw) can be one of the following :
E
"Error", event that doesn't cause the interruption of the supply of power,
but can reduce the functions of the equipment (e.g cannot be done the
changeover function of the exciters)
F
"Fault", event that causes the block of the equipment and requires the
intervention of an operator for the restart.
W
"Wait", event that causes the temporary block of the piece of equipment
equipment, that will be removed as soon as the problem is solved.
R
"Retry", event that causes a temporary block of the piece of equipment,
that will effect a restart attempt after a fixed lapse of time.
The possible type of events are listed in Table 7-2
Summary of Contents for PJ5KPS
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