Page 1
Technical
Information
Manual
Revision n. 5
9 September 2005
MOD. EASY3000/4000
EMBEDDED ASSEMBLY
NPO:
00105/03:A1676A.MUTx/05
POWER SUPPLY SYSTEM
MANUAL REV.5
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CAEN will repair or replace any product within the guarantee period if the Guarantor declares that the
product is defective due to workmanship or materials and has not been caused by mishandling,
negligence on behalf of the User, accident or any abnormal conditions or operations.
CAEN declines all responsibility for damages or
injuries caused by an improper use of the Modules due
to negligence on behalf of the User. It is strongly
recommended to read thoroughly the CAEN User's
Manual before any kind of operation.
CAEN reserves the right to change partially or entirely the contents of this Manual at any time and without
giving any notice.
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TABLE OF CONTENTS
1. EASY3000 EMBEDDED ASSEMBLY SYSTEM....................................................................................5
1.1 FUNCTIONAL DESCRIPTION.....................................................................................................................5
1.2 THE CAEN MULTICHANNEL POWER SUPPLY SYSTEM OVERVIEW ........................................................6
2. THE MOD. A1676A BRANCH CONTROLLER ....................................................................................8
2.1 A1676A BRANCH CONTROLLER OVERVIEW ..........................................................................................8
2.2 A1676A FRONT PANEL..........................................................................................................................9
2.3 A1676A TECHNICAL SPECIFICATIONS..................................................................................................10
2.3.1 A1676A Packaging ......................................................................................................................................10
2.3.2 A1676A Front panel connections ................................................................................................................10
2.3.3 A1676A Front panel switches......................................................................................................................11
2.3.4 A1676A Front panel displays ......................................................................................................................11
2.3.5 Control signals ............................................................................................................................................12
2.4 A1676A COMMUNICATION TIMING......................................................................................................12
2.4.1 Foreword.....................................................................................................................................................12
2.4.2 Communication mode..................................................................................................................................12
2.4.3 Requested parameters present on EASY3000 LV and HV boards ............................................................... 13
2.4.4 Timing..........................................................................................................................................................13
2.4.5 Timing examples..........................................................................................................................................13
2.5 EASY CRATE CONFIGURATION ...........................................................................................................14
2.5.1 Installation and set up .................................................................................................................................14
2.5.2 Configuring the crates.................................................................................................................................14
3. EASY3000 AND EASY4000 CRATES....................................................................................................17
3.1 EASY3000 CRATE OVERVIEW .............................................................................................................17
3.2 EASY 3000 CRATE PANEL CONNECTIONS AND DISPLAYS ....................................................................17
3.2.1 EASY 3000 crate panel second issue ...........................................................................................................17
3.2.2 EASY 3000 crate panel first issue................................................................................................................18
3.2.3 EASY4000 crate overview............................................................................................................................19
3.2.4 A1676A – EASY3000/4000 CRATE connection...........................................................................................20
3.3 48 V POWER SOURCES.........................................................................................................................23
3.3.1 Mod. A3486 AC/DC Converter for Hostile Areas .......................................................................................23
3.3.2 Mod. A3484 and A3485 AC/DC Converters................................................................................................24
4. SAFETY INFORMATION AND INSTALLATION REQUIREMENTS............................................25
4.1 GENERAL SAFETY INFORMATION..........................................................................................................25
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4.1.1 Injury Precautions.......................................................................................................................................25
4.2 SAFETY TERMS AND SYMBOLS ON THE PRODUCT ................................................................................25
4.3 INSTALLATION......................................................................................................................................26
4.4 OPERATING MODES ..............................................................................................................................26
4.5 OUTPUT CONTROL AND MONITORING ...................................................................................................26
4.6 INTERLOCK OPERATION........................................................................................................................26
LIST OF FIGURES
FIG. 1.1 – SYSTEM’S BLOCK DIAGRAM...................................................................................................................6
FIG. 2.1 – MOD. A1676A BRANCH CONTROLLER FRONT PANEL ...........................................................................9
FIG. 2.2 –DSUB50 CONTROL CONNECTOR PIN ASSIGNMENT...............................................................................11
FIG. 2.3 – EASY RACK BUILDER MAIN MENU .....................................................................................................15
FIG. 2.4 – EASY RACK BUILDER WITH POPULATED RACKS.................................................................................16
FIG. 3.1 – EASY 3000 CRATE PANEL SECOND ISSUE ...........................................................................................17
FIG. 3.2 – EASY 3000 CRATE PANEL FIRST ISSUE ...............................................................................................18
FIG. 3.3 – EASY4000 CONNECTORS ...................................................................................................................20
FIG. 3.4 – CONNECTING A1676A AND THE CRATES WITH 50 WIRES CABLE.........................................................21
FIG. 3.5 – CONNECTING A1676A AND THE CRATES WITH SPLIT CABLE ...............................................................22
FIG. 3.6 – A3486 48 V POWER SOURCE FOR HOSTILE AREAS FRONT PANEL.......................................................23
FIG. 3.7 – A3485 48 V POWER SOURCE FRONT PANEL........................................................................................24
FIG. 2.2 – INTERLOCK DIAGRAM..........................................................................................................................27
LIST OF TABLES
TABLE 1.1 – EASY3000/4000 CRATES AND BOARDS HOSTILE AREAS TOLERANCES.............................................5
TABLE 1.2 – TECHNICAL SPECIFICATIONS OF THE SY 1527 MAINFRAME...............................................................7
TABLE 2.1 – A1676A CONTROL SIGNALS ...........................................................................................................12
TABLE 3.1 – EASY 3000 CRATE CONNECTIONS SECOND ISSUE ...........................................................................18
TABLE 3.2 – EASY 3000 CRATE FIRST ISSUE CONNECTIONS ...............................................................................19
TABLE 3.3 – TECHNICAL SPECIFICATIONS OF THE A3486 48 V POWER SOURCE .................................................23
TABLE 3.4 – TECHNICAL SPECIFICATIONS OF THE A3484 AND A3485 48 V POWER SOURCES............................24
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1. EASY3000 Embedded Assembly System
1.1 Functional description
EASY3000 (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 EASY3000 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 (see Table 1.1), where the EASY3000
modules provide a wide variety of output voltages to satisfy the requirements of most
detectors and front-end electronics. The control of the EASY3000 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 EASY3000 crates. The EASY3000 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 EASY3000 crate: its role is
to configure the EASY3000 channels as if they belong to the supply unit slot in which the
branch controller is located. All the channels of the EASY3000 boards will be considered
as channels of the branch controller, 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 EASY3000 crate
can be used with an air and/or water intercooler and its standard width fit the rack
mounting. Optional fan trays are available for the stand-alone operation of the EASY3000
crate when no magnetic field is present. EASY3000 is powered by external 48 V DC. The
EASY architecture foresees two independent 48 V power supplies: the first (48 V Power)
to power the channels regulators, the other (48 V Service) to power the control logic. The
use of CAEN 48 V power sources (Mod. A3484 and A3485), allows to integrate into the
channels control also the management of the 48 V power supplies. Fig. 1.1 shows the
system’s block diagram.
The EASY4000 crate is designed to house some custom PS boards that do not fit into
the EASY3000 crates; it supports mechanically up to 9 PS boards and distributes control
signals and power supplies.
Table 1.1 – EASY3000/4000 Crates and Boards hostile areas tolerances
Magnetic field:
2 kGauss
1·1011 p/cm2 TD
12
2·10
Radiation:
n/cm2 TD
15 kRad TID
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CONTROL ROOM
Control Bus
HOSTILE AREA
LOGIC
CONTROL
EASY Module
DC-DC
DC-DC
DC-DC
V+
S+
SV-
V+
S+
S-
V-
V+
S+
SV-
V+
S+
SV-
V+
S+
SV-
V+
S+
SV-
SY1527 SYSTEM MAINFRAME
POWER FAILURE
INTERRUPT
SY1527
Power Line
BRANCH
CONTROLLER
LOGIC
CONTROL
EASY Module
48V
BACKUP
BATTERY
48V
POWER
SOURCE
P. Service Line
48V
SERVICE
POWER
SOURCE
DC-DC
DC-DC
DC-DC
Fig. 1.1 – System’s block diagram
1.2 The CAEN Multichannel Power Supply System Overview
The SY1527 system is the fully equipped experiment version of a new line of power
supply systems which represent CAEN's latest proposal in the matter of High Voltage
and Low Voltage Power Supplying. This system outlines a completely new approach to
power generation and distribution by allowing the housing, in the same mainframe, of a
wide range of boards with different functions, such as High/Low Voltage boards, generic
I/O boards (temperature, pressure monitors, etc.) and branch controllers, where the latter
are used to control other remote generators and distributors. Modularity, flexibility and
reliability are the key-points of its design, enabling this module to meet the requirements
needed in a wide range of experimental conditions, which range from those of LHC
experiments, where the features of this model find prior application, to those of other less
challenging, but still demanding, High Energy Physics experiments.
The mainframe is housed in a 19"-wide, 8U-high euro-mechanics rack and hosts four
main sections:
- the Board Section, with 16 slots to house boards, distributors and branch controllers;
- the Fan Tray Section, housing 6 fans arranged on two rows;
- the Power Supply Section, which consists of the primary power supply and up to 3
power supply units;
- the CPU and Front Panel Section which includes all interface facilities.
The User Software Interface features the usual friendliness of the previous CAEN
systems which now also includes a 7.7" colour LCD. A wide choice of interface facilities
provides full communication compatibility with the previous systems and the feasibility of
controlling heterogeneous external devices. Modularity has been one of the leading
criteria in the design and development of the system: both the Power Supply Section and
the Board Section are completely modular. The Power Supply Section allows different
configurations with up to 3 power supply units per mainframe (up to 2250 W), while the
Board Section can house up to 16 boards able to fulfil different functions. A complete line
of power supply boards and distributors has been specially developed for this new
system. The minimum system configuration consists of the primary power supply, one
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Power Supply Unit and one board. The system allows also to deal with power supply
solutions composed by “branch controllers” (housed in the system main frame) and ondetector “remote boards” (manufactured in order to be magnetic field and radiation
tolerant). Channel trip control on other crates is performed via four external differential
trip lines. A sophisticated trip handling via software allows to control and correlate trip
conditions on the channels of the crate as well as of other crates connected to it. Live
insertion and extraction of the boards, which reduces the down time of the global system,
and easy access to the computing core and peripherals of the system complete the
system flexibility. Easy interfacing is another key-point of the SY1527 system, which can
be connected to SY127 and SY527 systems. The Ethernet interface (TCP/IP) allows both
an easy Telnet access and the connection via OPC Server to a SCADA control system.
Enhanced software programming features a unified command set independent from the
interface used to communicate with the system. The Power Supply Section and Board
Section can be externally synchronised via front panel connectors. Multi-layered access
to the system via Intranet is foreseen through the management of several custom user
profiles. In particular, three different access levels have been implemented: Guest, User
and Administrator, each of which with password protection. Handy maintenance and
upgrading, which constitute a major issue in the reliability of a system, are further
guaranteed by the possibility of accessing and servicing the system via network facilities.
Actually, the Telnet access facility allows remote debugging and technical support of the
system, including future firmware upgrading. For a detailed description of the SY 1527
Universal Multichannel Power Supply System please refer to the SY 1527 User's Manual.
.
Table 1.2 – Technical specifications of the SY 1527 mainframe
Packaging
Weight
Power requirements
Max. number of boards per crate
Max. number of power supply units per crate
Primary power supply output (Mod. A 1531)
Power supply unit output (Mod. A 1532)
Max. output power
Operating temperature
- 19"-wide, 8U-high Euro-mechanics rack;
- Depth: 720 mm.
-Mainframe (*): 24 kg
-Mod. A1532: 3.2 kg
Voltage range: 100/230 V
Frequency: 50/60 Hz
Power: 3400 W
From 0°C (dry atmosphere) to +40°C
16
3
± 12 V, 8 A
+5 V, 20 A
+48 V, 15.6 A
2250 W
Storage temperature
From -20°C (dry atmosphere) to +50°C
(*) One Primary Power Supply (Mod. A 1531) and one Power Supply Unit (Mod. A 1532) are
included; boards are not included.
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2. The Mod. A1676A Branch Controller
2.1 A1676A Branch Controller overview
The Mod. A1676A EASY Branch Controller is implemented in a single width
SY1527/SY2527 board. Once plugged in, the Branch Controller must be linked to the
EASY3000 and EASY4000 crates (which can work in the “hostile area”), via front panel
connectors (Control and Power Supply). The A1676A is the interface between the
mainframe and the remote boards in the EASY3000/4000 crate. It configures the
EASY3000/4000 channels as if they belong to the slot in which the branch controller is
located: the channels of the EASY3000/4000 boards operate as channels of the A1676A.
Up to six EASY3000/4000 crates can be controlled by one A1676A.
The User has to configure the A1676A to operate with His EASY crate layout by using
the provided software tool (see details in § 2.4).
The A1676A branch controller is a single width board and will be housed in one SY1527
system, while the remote sections will operate in the “hostile area”.
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2.2 A1676A Front Panel
Mod.
V560E
Mod. A167 6A
HVCK
SYNC
5
DATA
REC
HVCK
SYNC
HEADER
CONNECTOR
4
DATA
REC
HVCK
SYNC
3
DATA
REC
HVCK
SYNC
2
DATA
REC
HVCK
SYNC
1
DATA
REC
HVCK
SYNC
0
DATA
REC
GND
DSUB
CONNECTOR
INTERLOCK
CONNECTORS
RESET
BUTTON
34 5
102
5
4
0
I
N
T
E
1
R
L
O
C
K
1
CONTROLLER
1
RESET
SCAL E
R
EASY
BRANCH
48V
L
I
N
E
1
GNDGND
0
+
48V
CONNECTORS
-
Fig. 2.1 – Mod. A1676A Branch Controller front panel
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2.3 A1676A Technical specifications
The A1676A Branch Controller board can control up to six remote crates through the
CANbus protocol (250 kbit/sec).
Remote crates controlled by the A1676A can house different sets of EASY3000/4000
boards, then it is necessary to configure the Branch Controller firmware through a set up
file containing all the information about number, type and position of the boards in remote
crates. After the configuration it is not possible to change the crate layout unless the
A1676A configuration file is updated. The Branch Controller, in fact, scans the crates
expecting to find the sets of boards corresponding to its configuration file; if any board is
misplaced (or absent) with respect to the configuration file, then it is ignored and its
channels are signalled as “unplugged” by the SY1527: in this case it is necessary to
insert correctly the misplaced board, and then its channels will be accessed.
The User can build his crate configuration using the software tool described in § 2.4.
Control of remote crates is performed through 2 alternative output connectors (50-pin
Header male or 50-pin DSUB female) placed on the front panel of the A1676A board
(see fig. 2.1); maximum suggested cable length between A1676A and EASY crate is
150 m.
The front panel houses also six green LEDs (one per branch = remote crate); each LED
lights up / blink as the branch communications take place.
The Reset button allows to reset the internal A1676A controller; during this operation all
the remote channels continue operating with old settings. It is necessary to wait
15 seconds at least before monitoring or setting once more the remote channels.
The Interlock signal allows to shut down all the remote channels, keeping active the
communications between remote boards and SY1527.
The A1676A provides also a 48 V / 2 A supply voltage (to be used for powering the
crates) that can be enabled via the A1676A 48V parameter.
2.3.1 A1676A Packaging
The Mod. A1676A module is housed in a 5 TE-wide, 6U-high mechanics. The board
requires one SY1527 slots (single-width).
2.3.2 A1676A Front panel connections
CONTROL Connectors: 50-pin Header male / 50-pin DSUB female
48 V OUT Connector: 2 x 4 mm connectors female
INTERLOCK Connectors: 2 x 4 pin Amp connectors
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HVCKH4
HVCKL4
SYNCH4
SYNCL4
DATAH4
DATAL4
RECH4
RECL4
GND
RECL5
RECH5
DATAL5
DATAH5
SYNCL5
SYNCH5
HVCKL5
HVCKH5
134
18
235
19
336
20
437
21
538
22
639
23
740
24
841
25
942
26
1043
27
1144
28
1245
29
1346
30
1447
31
1548
32
1649
33
1750
HVCKH0
HVCKH2
HVCKL0
HVCKL2
SYNCH0
SYNCH2
SYNCL0
SYNCL2
DATAH0
DATAH2
DATAL0
DATAL2
RECH0
RECH2
RECL0
RECL2
GND
RECL3
RECL1
RECH3
RECH1
DATAL3
DATAL1
DATAH3
DATAH1
SYNCL3
SYNCL1
SYNCH3
SYNCH1
HVCL3
HVCL1
HVCH3
HVCH1
Fig. 2.2 –DSUB50 Control connector pin assignment
2.3.3 A1676A Front panel switches
RESET button: Function: the A1676A is reset but HVCK and
2.3.4 A1676A Front panel displays
LINE LEDs: Function: light up the when corresponding
Type: green LED.
INTERLOCK LEDs: Function: light up when the corresponding
Type: red LED.
SYNC still provided
Type: Monostable push-button
branch communicates with A1676A.
interlock input is active.
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2.3.5 Control signals
The Branch Controller Control signals are described in the following table.
Table 2.1 – A1676A Control Signals
SIGNAL DESCRIPTION
625 kHz synchronisation signal (one per branch) for switching parts of remote PS
channel boards; however, if this signal fails, remote boards run properly (a
HVCK
SYNC
DATA
REC
synchronisation signal is generated by their controller), though lose synchronisation
between each other, and an error message (“Fail”) is returned by the SY1527. The
HVCK presence is signalled by the remote board parameter “HVSync” (Ok or Fail)
50 Hz clock (one per branch) for the board controllers synchronisation; if this signal
fails, remote boards do not operate and an error message (“Fail”) is returned by the
SY1527. In order to remove the Fail message, it is necessary to send the “Clear
Alarm” command
Communication data line
Recovery / Reset lines, one for each remote EASY3000 crate; through the SY1527 it
is possible to send a command to the controllers of a remote crate either switching off
all the channels in the crate (HW Reset) or eventually leaving them on, if they were
(Recovery)
The A1676A Branch Controller allows also to use the SY1527 System front panel signals
(Kill, Interlock, Enable) on the remote channels.
2.4 A1676A Communication timing
2.4.1 Foreword
The A1676A board can handle, via the CANBUS protocol, up to 6 remote crates in
parallel (EASY bus).
The remote crates, which can be of two different kinds developed so far, EASY3000 and
EASY4000, can house respectively up to 23 and 20 nodes (EASY power supply boards,
optional Fan Units and A34xx AC/DC Converters).
2.4.2 Communication mode
A remote board is defined by its number of channels along with the type and number of
associated parameters.
Such parameters allow both to control the channel and to monitor constantly its status.
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The A1676A asks in sequence all the functional parameters of each channel of each
board. Each parameter foresees the transmission and the reception of a single CANBUS
data packet.
The parameters request takes place through cycles, from the first channel of the first
board until the last channel of the last board in the crate.
2.4.3 Requested parameters present on EASY3000 LV and HV boards
It is possible to distinguish between channel 0 parameters and other channel
parameters:
Channel Parameters
0 Temp, MainPwS, 12VPwS, 48VPwS, Sync, HVSync, RemIlk
1..n V0Set, Vmon, Vcon (LV boards only), Imon, Status, Pw
Such parameters are continuously requested by the A1676A from the remote boards
channels.
2.4.4 Timing
The average time necessary in order to update one parameter is 1.5 ms. Since the
request of the parameters takes place through cycles, the time necessary to update a
board depends thus on both the number of channels and the number of channels
parameters.
If one channel has six parameters, then 6 x 1.5 ms = 9 ms are necessary for the
complete refresh of its parameters.
Beyond the time necessary for the parameters request, a 10 ms latency between one
node’s scanning end and the beginning of the subsequent is introduced.
If more remote crates are added to the EASY bus, the time necessary for one board’s
scanning and for the parameters request, does not grows significantly, since
communications take place in parallel.
2.4.5 Timing examples
2.4.5.1 A4601H
For example we consider the A4601H board (which is housed inside the EASY4000
crate); such board is composed by two Power Supply Units (1 Unit = 1 Node) with 5
channels each. The number of parameters per channel is as follows:
ch0 7 parameters
ch1 7 parameters
ch2 7 parameters
ch3 6 parameters
ch4 6 parameters
the total number of parameters per node is thus 33; the time necessary for scanning the
A4601H is then 33 x 1.5ms x 2 = 99ms
If we have an EASY4000 crate completely filled with A4601H boards, the time necessary
for the upgrade is:
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99ms x 9 (max number of A4601H per crate) = 891 ms
plus the 10 ms latency per node: 10 ms x 9 x 2 = 180 ms
the total time is then 180 ms + 891 ms = 1071 ms
Such time does not depend on the number of active EASY bus (from 1 to 6)
2.4.5.2 A3009
For example we consider the A3009 board (which is housed inside the EASY3000 crate);
such board (1 Board = 1 Node) has 13 channels. The number of parameters per channel
is as follows:
ch0 7 parameters
ch1..12 6 parameters
the total number of parameters per node is thus 79; the time necessary for scanning the
A3009 is then 79 x 1.5 ms = 118.5 ms
If we have an EASY3000 crate completely filled with A3009 boards, the time necessary
for the upgrade is:
118.5 ms x 5 (max number of A3009 per crate) = 592.5 ms
plus the 10 ms latency per board: 10 ms x 5 = 50 ms
the total time is then 50 ms + 592.5 ms = 642.5 ms
Such time does not depend on the number of active EASY bus (from 1 to 6)
2.5 EASY Crate Configuration
CAEN EASY Rack Builder is a Java(TM) application which allows EASY Users to
create their customised EASY Crate configurations.
2.5.1 Installation and set up
First of all it is necessary to connect the PC, which must run a Java(TM) 2 Platform
Standard Edition, and must be connected to the Internet.
Now it is necessary to download the software tool from the web page:
http://www.caen.it/nuclear/product.php?mod=A1676A
Click on the Software menu and download the CaenEASYRackBuilder-x.y.zip file
Unzip the file then launch the CaenEASYRackBuilder.jar Java(TM) application
2.5.2 Configuring the crates
Now the following EASY Rack Builder window will open:
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Fig. 2.3 – EASY Rack Builder main menu
The EASY Rack Builder shows six empty EASY crates, by clicking on the “Crate button”
(see the arrow in fig. 2.3) it is possible to choose between EASY3000 and EASY4000
crates (according to the crates connected to the A1676A to be configured).
The menu on the white box on the left lists the EASY boards (including optional AC/DC
converters and Fan units) available to fill the crates.
The operating parameters of such boards are stored in the board.xml files included in the
folder:
\CaenEASYRackBuilder\Boards
Each time CAEN EASY Rack Builder is launched, such xml files are compared to those
present in the CAEN data base and, if the comparison is successful, the corresponding
boards are added in the white box list.
The updated xml files of each board can be downloaded in the software section at:
http://www.caen.it/nuclear/product.php?mod=XXXXX
where “XXXXX” stands for the board name (for example: A3009).
In order to configure the crates it is necessary to select the desired board by left clicking
on its name and dragging it on the selected crate slot. Left click again to drop.
Boards can be removed from the crates left clicking on them and dragging and dropping
them on the white box.
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Fig. 2.4 – EASY Rack Builder with populated racks
When the crate configuration is complete, it is necessary to save the file; go to:
EASY Rack Configuration > Save as…
This allow to create an xml file which can be used for future purposes (modify, update
etc.).
In order to configure the A1676A it is necessary to select:
EASY Rack Configuration > Generate Branch Controller update file
This allow to create a binary file that must be used to configure the A1676A via SY1527;
now it is necessary to connect the PC to the SY1527 System which hosts the A1676A to
be configured. The configuration procedure is described in the SY1527 User Manual,
section 7.1.19 (The UTILITY Menu: Board Upgrade; please follow the same procedure of
the firmware upgrade).
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3. EASY3000 and EASY4000 crates
3.1 EASY3000 crate overview
The EASY3000 crate is designed to house Power Supply and ADC boards of EASY3000
family; it supports mechanically EASY boards and distributes control signals and power
supplies. It is handled by one of six branches of the A1676A – Branch Controller.
3.2 EASY 3000 crate panel connections and displays
3.2.1 EASY 3000 crate panel second issue
48V IN 48V ON
48V Power
-
INPUT - DAISY CHAIN
J3 J4 J5 J6 J1 J2 PW_STATUS
+
48V IN 48V ON
48V Service
-
INPUT - DAISY CHAIN
48VP 48VS
48V STATUS
+
INPUT
SV_STATUS
CAEN FAN UNIT CTR
COM3
EASY BUS
OUTPUT
INPUT
OUTPUT
LOCAL INPUT
EASY3000
EARTHFAN_CTR
EARTH
COM2
COM1
COM4
Fig. 3.1 – EASY 3000 crate panel second issue
Fig. 3.1 shows the EASY 3000 crate panel second issue and subesquents; for this model
the optional A3000F Fan Unit is available. The connections are explained in the following
table:
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Table 3.1 – EASY 3000 crate connections second issue
Name Description
J1,J2 48V SERVICE connectors (in parallel); input of 48 V supply for auxiliary low
voltages in boards
J3..6 48V POWER connectors (in parallel); input of 48 V supply for DC/DC
converters
F2 100 Amps fuse on 48 V POWER line
Com1..4 I/O of EASY bus for remote control
48V power/service
1
status
:
FAN_CTR Control link for fan unit (Mod. A3000F)
EARTH Earth link for the crate
Connectors for inputs from 48V supplies. Through this input the remote
EASY board microcontroller can detect failures in supply voltages and
consequently enables PS channels ramping down, while service supply
voltage is provided by a back up battery
3.2.2 EASY 3000 crate panel first issue
F2
L1
L2
J3
J1
L3
F1
J2
J4
-
+
-
48V Service 48V Power
-
-
+
L4
+
+
J6
J5
COM2
EASY BUS
OUTPUT INPUT
COM1
COM2
COM348V STATUS
EARTH
EARTH
COM3
COM1
48V STATUS
Fig. 3.2 – EASY 3000 crate panel first issue
1
This feature is not yet implemented
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Fig. 3.2 shows the EASY 3000 crate panel first issue; for this model the optional A34FU
Fan Unit is available. The connections are explained in the following table:
Table 3.2 – EASY 3000 crate first issue connections
Name Description
J1,J2 48V SERVICE connectors (in parallel); input of 48 V supply for auxiliary low
voltages in boards
F1 20 Amps fuse on 48 V SERVICE line
L1 Red LED that lights up when F1 is interrupted
L2 Red LED that lights up when 48 V SERVICE is present
J3, J4, J5, J6 48V POWER connectors (in parallel); input of 48 V supply for DC/DC
converters
F2 100 Amps fuse on 48 V POWER line
L3 Red LED that lights up when F2 is interrupted
L4 Red LED that lights up when 48 V POWER is present
Com1, Com2, Com3 I/O of EASY bus for remote control
48V status2: Connectors for inputs from 48V supplies. Through this input the remote
EASY board microcontroller can detect failures in supply voltages and
consequently enables PS channels ramping down, while service supply
voltage is provided by a back up battery
EARTH Earth link for the crate
3.2.3 EASY4000 crate overview
The EASY4000 crate is designed to house some custom PS boards that do not fit into
the EASY3000 crates; it supports mechanically up to 9 PS boards and distributes control
signals and power supplies. The crate has ten slots: slot 0 (the leftmost) is available for
test purposes, while slot 1..9 are suitable to host PS boards. The EASY4000 crate is
handled by one of six branches of the A1676A – Branch Controller. The crate panel is
provided with I/O 50 pin flat connectors of the EASY bus remote control and the 48V
Status input connector which allows the PS boards microcontrollers to detect failures in
supply voltages and consequently to enable PS channels ramping down, while service
supply voltage is provided by a back up battery; a green led signals the 48V activity. An
Earth link for the crate is available as well. For this model the optional A34FU Fan Unit is
available.
2
This feature is not yet implemented
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O
U
T
P
U
T
OUTPUT
I
N
P
U
T
4
8
V
S
T
A
T
U
S
E
A
R
T
H
INPUT
48V STATUS
48V LED
EARTH
Fig. 3.3 – EASY4000 Connectors
3.2.4 A1676A – EASY3000/4000 CRATE connection
There are two different ways for connecting the A1676A Branch controller with up to six
EASY3000/4000 crates; the first type of connection uses a 50-wires flat cable between
the A1676A and the first crate as well as between the subsequent crates, as shown in
the following figure:
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012345
EASY
3000
INPUT OUT INPUT INPUT INPUT INPUT INPUTOUT OUT OUT OUT OUT
FLAT 50p
EASY
3000
FLAT 50p FLAT 50p FLAT 50p FLAT 50p FLAT 50p
EASY
3000
EASY
3000
EASY
3000
EASY
3000
A1676A
INPUT OUT
GND GND
EASY
BUS
Crate0
EASY
BUS
Crate1
EASY
BUS
Crate2
EASY
BUS
Crate3
EASY
BUS
Crate4
EASY
BUS
Crate5
ESAY
BUS
SEC0SEC1SEC 2SEC3SEC4SEC5
Crate0
ESAY
BUS
Crate1
EASY
BUS
Crate2
ESAY
BUS
Crate3
ESAY
BUS
Crate4
ESAY
BUS
Crate5
GND GND
EASY
BUS
Crate1
EASY
BUS
Crate2
EASY
BUS
Crate3
EASY
BUS
Crate4
EASY
BUS
Crate5
NOT
CONNECTED
SEC5 SEC4 SEC3 SEC2 SEC1 SEC0
EASY
BUS
Crate1
EASY
BUS
Crate2
EASY
BUS
Crate3
EASY
BUS
Crate4
EASY
BUS
Crate5
NOT
CONNECTED
com1 com2
Fig. 3.4 – Connecting A1676A and the crates with 50 wires cable
The A1676A provides the signals for all the crates; the first crate uses only “Section 0”
(see § 2.2) of such control signals arriving into the input connector and passes the other
sections to its output connector. Each EASY 3000/4000 crate is connected in series to
the subsequent other ones.
The main advantage of this way of connection is the easy manufacturing of cables.
The most evident disadvantage is the unnecessary connection of each crate with 50
wires, while only 4 couples and return would be required.
The second way of connection uses the DSUB50 control connector of the A1676A,
which, via a split cable, is connected with each section of the EASY BUS through the
crates DB9 connectors, as shown in the following figure:
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012345
EASY
3000
COM3
DB9 DB9 DB9DB9 DB9 DB9COM3 COM3 COM3 COM3 COM3
EASY
3000
EASY
3000
EASY
3000
EASY
3000
EASY
3000
EASY BUS3
EASY BUS2
EASY BUS1
DB50
EASY BUS4
EASY BUS5
EASY BUS6
A1676A
Fig. 3.5 – Connecting A1676A and the crates with split cable
The main advantage of this solution is the lower number of wires (9 for crates).
The most evident disadvantage is the more difficult manufacturing of split cables.
Note that cables must be shorter than 150 m; the Bus line does not require a termination.
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3.3 48 V Power Sources
3.3.1 Mod. A3486 AC/DC Converter for Hostile Areas
The CAEN Mod. A3486 is a two channel 220/400 Vac – 48 Vdc converter, which allows
to integrate into the EASY channels control also the management of the 48 V power
supplies. Each channel provides a 2 kW output and can be tracked in order to obtain one
4 kW output. This module is designed to work as main converter in LHC hostile areas,
thus completing the EASY system. Features include local or remote control, overload
protection and local or remote inhibit function.
MAIN
CH1
48V SERVICE
- IN +
48V IN
48V ON
S
T
A
T
U
IN
OUT
S
EASY BUS
LOCAL INPUT
-OUT CH0+
SENSE CONNECTOR
OUT-
S- S+
CH0
ON
-OUT CH1+
SENSE CONNECTOR
OUT+
OUT-
S- S+
OUT+
Mod. A3486 2x2KW / 1x4KW 48Vdc POWER SUPPLY
OVC
TRACKING
INT.
PARALLEL
FAIL
INDEPENDENT
ENABLE
DISABLE
INTERLOCK
GND
K
MAX
VCC
A
ON
DROP
STATUS
OVC
CHANNEL 0 CHANNEL 1 POWER
ENABLE
DISABLE
INTERLOCK
GND
K
MAX
VCC
ON
DROP
A
STATUS
INT.
FAIL
ON
OFF
TERMINATION
COMM
ON
OFF
ENABLE
OUTPUT
INPUT
INPUT
OUTPUT
EARTH
Fig. 3.6 – A3486 48 V Power Source for Hostile Areas front panel
Table 3.3 – Technical specifications of the A3486 48 V Power Source
Model:
Polarity:
AC input:
Output Voltage:
Max. Output Power:
Voltage Ripple:
3-phase 220/400 V 50/400 Hz
44 ÷ 52 V software adjustable
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A3486
positive
4000 W
< 100 mV pp
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3.3.2 Mod. A3484 and A3485 AC/DC Converters
CAEN can provide 2 types of 48 V power sources (Mod. A3484 and A3485), which allow
to integrate into the channels control also the management of the 48 V power supplies.
The modules are implemented in a 3U / 19” Euro Rack and have Single (A3484) or Dual
(A3485) 48V output. Features include local or remote control, overload protection and
local or remote inhibit function. The A3484 and the A3485 are designed to work in
“friendly” environment (no magnetic field and radiation).
+
A
-
OUT
+
B
-
AB
POWER POWER
ON
OFF
MONITOR
-
+
VOUT ADJ
48V IN
-
+
Fig. 3.7 – A3485 48 V Power Source front panel
Table 3.4 – Technical specifications of the A3484 and A3485 48 V Power Sources
Model:
Polarity:
AC input:
Output Voltage:
Max. Output Power:
Voltage Ripple:
3-phase 220/400 V 50/400 Hz 3-phase 220/400 V 50/400 Hz
48 V ± 5% trimmer adjustable 48 V ± 5% trimmer adjustable
A3484 A3485
positive positive
2500 W 5000 W
< 100 mV pp < 100 mV pp
EASY
BUS
MONITOR
-
INTERLOCK
GND
K
ON
OFF
VOUT ADJ
+
VCC
A
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4. Safety information and installation requirements
4.1 General safety information
This section contains the fundamental safety rules for the installation and operation of the
boards. Read thoroughly this section before starting any procedure of installation or
operation of the product.
4.1.1 Injury Precautions
Review the following precautions to avoid injury and prevent damage to this product or
any products connected to it. To avoid potential hazards, use the product only as
specified. Only qualified personnel should perform service procedures.
Avoid Electric Overload.
To avoid electric shock or fire hazard, do not apply a voltage to a load that is outside the
range specified for that load.
Avoid Electric Shock.
To avoid injury or loss of life, do not connect or disconnect cables while they are
connected to a voltage source.
Do Not Operate Without Covers.
To avoid electric shock or fire hazard, do not operate this product with covers or panels
removed.
Do Not Operate in Wet/Damp Conditions.
To avoid electric shock, do not operate this product in wet or damp conditions.
Do Not Operate in an Explosive Atmosphere.
To avoid injury or fire hazard, do not operate this product in an explosive atmosphere.
Do Not Operate With Suspected Failures.
If you suspect there is damage to this product, have it inspected by qualified service
personnel.
4.2 Safety Terms and Symbols on the Product
These terms may appear on the product:
• DANGER indicates an injury hazard immediately accessible as you read the
marking.
• WARNING indicates an injury hazard not immediately accessible as you read the
marking.
• CAUTION indicates a hazard to property including the product.
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The following symbols may appear on the product:
DANGER ATTENTION
High Voltage
Refer to Manual
4.3 Installation
The Mod. A1676A is a single-width board for the SY1527/2527/3527 systems. At power
ON the SY1527 system processor will scan all the slots in the crate to find out where the
module is plugged and what kind of module it is.
The A1676A must be connected to the EASY3000 remote crates through the control
lines. The control connectors are placed on the A1676A front panel and on the
EASY3000 front panel.
4.4 Operating modes
The Mod. A1676A board can be controlled, either locally or remotely, through the
SY1527 software interface. For details on SY1527 system operation, please refer to the
User's Manual of this product.
ATTENTION
THE MOD. A1676A BOARD REQUIRES
SY1527 FIRMWARE VERSION 2.00.01 OR LATER
4.5 Output control and monitoring
It is possible, through the SY1527 system, to perform the following operations:
• HWReset0..5: all the remote channels in the relevant crate (0..5) will be turned
OFF and communications reset. Settings on the remote channels will be saved
• Recovery0..5: communications will be reset, but the remote channels in the
relevant crate (0..5) will eventually remain ON. Settings on the remote channels
will be saved
• GlobalOn / GlobalOff: these commands allow to turn ON/OFF all the remote
channels enabled via the channel “GlbOnEn / GlbOffEn” parameter
• 48VA1676: Enable / Disable 48 V output of Branch Controller
• A1676Ilk: Monitor A1676A Interlock status:
A1676Ilk value Interlock 0 Interlock 1
0 Not active Not active
1 Active Not active
2 Not active Active
3 Active Active
4.6 Interlock operation
This section allows to enable/disable the module output and can work in two ways:
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PASSIVE INTERLOCK: it is necessary to short circuit pin 1 (“GND”, the first from left to
right) with pin 2 (“K=katode”), and pin 3 (“A=anode”) with pin 4 (“VCC”), or put a 50 Ohm
termination between pin 3 and pin 4.
ACTIVE INTERLOCK: it is necessary to send a voltage level (for example a TTL)
between pin 2 = katode and pin 3 = anode (high = interlock disabled, the channel can be
turned on; low = interlock enabled, the channel cannot be turned on), leaving pin 1 and
pin 4 disconnected.
VCC
A
330 Ohm
~10 mA
K
Fig. 4.1 – Interlock diagram.
GND
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