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User Manual
Rev. 1.2 - 21/01/11
TEX2000LCD
that protect the equipment from any surge events in the power mains.
Mains voltage is brought from this module to the main Power switch on the front
panel (figure 6.1 - [7]), which relays it to the service transformer TR1.
Inside the surge protection module, a suitable 24VDC relay controlled via the
interface board isolates (single line) mains voltage to be fed to the power amplifier
power supply unit (PFC module). As a result, the interface board enables mains
power supply to PFC when these requirements are met:
•
POWER switch on front panel (figure 6.1 - [7]) set to ON;
•
No alarm or fault events present (see section 5.4);
•
Power output enabled (set to ON) in FNC operation menu (menu 4, see section
5.4.1);
•
RF output power set to over 0W using the edit mode (menu 2, see section
5.3).
8.1.2 PFC unit (PFCPSL5060)
The PFC unit is a rectifier that modulates drawn current to ensure it is drawn
sinusoidally (as far as possible) and achieve a 99% power factor.
The PFC unit can operate on 115 VAC or 230 VAC input voltage. It features a
voltage selection block that normally does not require setting: see section 5.1.2
for a detailed description.
8.1.3 Switching power supply (PSL5060)
The switching power supply incorporated in this amplifier feeds 50 VDC to the RF
power modules with 60 A maximum current.
This module has a control input that enables output voltage reduction when needed
(for instance, in the event of RF output power reduction). Another input signal is
used to shut down the power supply (0V output voltage) when one of the following
conditions is verified:
•
Power output disabled (set to OFF) by user in FNC operation menu (menu 4,
see section 5.3.1);
•
Regulated power set to 0 Watt using the edit mode (menu 2, see section
5.3);
•
An alarm or fault condition has occurred (see section 5.4).
8.2 Interface Board (SL010IN5001)
This board performs the following tasks:
•
It uses AC voltage to generate and distribute service power supply over the
