R.V.R. Elettronica PJ20KPS-C, User'S & Technical Manual

Page: 27 / 114

ELETTRONICA
Rev. 1.2 23/07/2012
21
User & Technical Manual
PJ20KPS-C/PJ25KPS-C
5.2 Buttons, selector switches and LEDs
The typical machine-control operations are performed using the buttons of the control
unit’s panel. Specific LEDs correspond to each button and selector switch for indicating
the machine’s status.(Figure 5-16).
The functions performed by the controls are as follows:
Funzione Descrizione
OFF Button for turning off the machine. In this status, the exciters
and the fan are off and the RF amplifying modules are not
powered.
STDBY Button for setting the machine in standby. In this status the
transmitter does not emit any power, but is ready to start the
transmission: the main blower is on, the RF modules are not
powered, the exciters are on but locked by means of an inter-
lock. The stand-by is used to test the exciters, in fact in ma-
nual modality the operator could arrange them in base to the
own requirements; coming from an “On” in manual modality,
the system does not touch the interlock. Stand-by status is
signalled from a LED. In manual and in stand-by the inhibit of
the device doesn’t intervene on the interlock of the exciters.
This could necessary when the apparatus is in configuration
n+1 for verify if the exciters are operational.
ON Button for turning on the transmitter. The RF modules are
placed in a position of On, the pump turns on and the com-
mand must be set EXCITER CHANGEOVER automatic.The
RF power supply is activated.
If the command is set to MANUAL CHANGEOVER EXCITER
(led on), exciters will block interlock and have to go throu-
gh in “exciters menu” of CCU to enable them manually.The
exciters should deliver a power of at least 15 W to start the
transmitter.
Figure 5-16