Document type:
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Revision:
User's Manual (MUT)
A3484-A3485 AC/DC Converter 400 V 3-phase 48 V 2.5/5kW
04/07/2017
3
NPO:
Filename:
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Page:
00120/04:A348x.MUTx/03
A3485_REV3.DOC
21
5
1. EASY Embedded Assembly System
1.1
Functional description
EASY (Embedded Assembly SYstem) is the new CAEN power supply solution for
operation in magnetic field and radioactive environment. CAEN has been involved for
more than a decade in developing different solutions for the main LHC experiments,
where the electronic equipment of the experiment is dealing with high dose radiation and
intense magnetic field. In order to provide safe and reliable operations in such hostile
areas, CAEN started tests with rad-
tolerant components and magnetic field resistant
solutions, patenting the new technology that is now used in this new line of products.
Moreover, though designed for harsh environment, the EASY modules can work also in
normal condition with excellent performance. In the new architecture, the power supply
can be located directly in the hostile area, where the EASY modules provide a wide
variety of output voltages to satisfy the requirements of most detectors and front-end
electronics. The control of the EASY power supply system is done remotely using a
Branch Controller (Mod. A1676A) plugged in a SY1527 or SY2527 mainframe located in
the control room. Each A1676A branch controller can handle up to 6 EASY crates: in this
way, one SY1527 power supply system, for example, housing up to 16 A1676A boards,
can handle up to 96 EASY systems. The EASY crate can house up to 10 boards,
depending on the boards’ width. The branch controller is the interface between the
mainframe (SY1527 or SY2527) and the remote boards in the EASY crate: its role is to
configure the EASY channels as if they belong to the supply unit slot in which the branch
controller is located. All the channels of the EASY boards will be considered as channels
of the branch control board, thus hugely increasing the number of channels the system
can handle. Through the mainframe, the provided and fully reliable OPC server permits
an immediate and “automatic” interfacing with the custom control software; moreover, a
C-library for Windows and Linux is available as well. The EASY crate can be used with an
air and/or water intercooler and its standard width fit the rack mounting. Fig. 1.1 shows
the system’s block diagram.
