R.V.R. Elettronica PJ5KPS, Руководство пользователя и техническое руководство

Страница: 48 / 168

PJ5KPS
42 / 80 User & Technical Manual Rev. 1.5 - 08/02/06
level. common contact of this output is the RL3 (JP47/3).
JP38/5 Out OFF Digital output, active when the PJ5KPS is set for the lower power
level. The common contact of this output is the RL3 (JP47/3).
JP38/6 Out STDBY Digital output, active when the PJ5KPS is set for the lower power
level. The common contact of this output is the RL3 (JP47/3).
JP38/7 Out ON Digital output, active when the PJ5KPS is set on ON mode . The
common contact of this output is the RL3 (JP47/3).
JP38/8 Out FAULT Digital output, active when the PJ5KPS is set on FAULT mode . The
common contact of this output is the RL3 (JP47/3).
JP38/9 Out WAIT Digital output, active when the PJ5KPS is set on WAIT mode. The
common contact of this output is the RL3 (JP47/3).
JP38/10 Out WARNING Digital output, active when the PJ5KPS is set on WARNING mode .
The common contact of this output is the RL3 (JP47/3).
7.3 Power supply section
The power supply used by the PJ5KPS is AC threephase with neutral at 380 V. The
power supply for the RF amplifier modules is DC 80 V, stabilized inside the modules
themselves by a built-in switching power supply.
The power supply section of the PJ5KPS is composed of a threephase transformer
and a rectifier circuit to feed the RF modules. Some features of the power supply
section are the following:
• PF > 0.94. This value of the power factor is got thanks to specific solutions, such
as power inductors use. The result is a wave shape of the absorbed current
particularly cleaned and meeting the requirements of the most demanding users.
• Redundancy. Where an uninterrupted service is demanded, is possible to add a
second power supply chart. The functionning of the max power output is warrantied
by a power supply only, so the double power supply use allow to be used as back
up in case of fault of one of them.
• Easy access. The power supply section is located on a chart with wheels for an
easy take out from the cabinet and easy transportation. When the configuration of
the equipment is with double power supply chart is possible to stop (take out and
service) a section without turn off the equipment.
• The power supply section of the PJ5KPS is checked by a microprocessor card
included in the rack of the equipment . This card manages one or two more power
supply charts , the cooling blower and the several alarms systems such as the
emergency "not aus" button.
7.3.1 Working Principles
The Power Supply is checked by a microprocessor unit completely indipendent in
the alarming functions and activity respect to the control unit. The interchanges signals
between the two units are present on a flat cable of 20 poles named “data
communication and command bus”. The signals present on the bus that are related
to the power supply section are: ON, Stby, Alarm, Tr+/Tr-.