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Highlights |
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- Up to 480 Channels in a single Mainframe, up to 100 Mainframes controllable from a single point.
- Positive, Negative, Floating and Distributor Boards freely mixable.
- Power-On of the System and Channel-Out-Enable remotely controllable via front panel signals.
- Front panel keyboard and display for local control and monitoring of the System.
- Sophisticated remote controlling and monitoring of all Channel parameters through RS232C port or via H. S. CAENET through standard controllers (VME, CAMAC, PC).
- Powerful and versatile Software, easily upgradable and expandable.
- Password protected access for each Channel or group of Channels.
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The Model SY527 represents a major breakthrough in power supply systems. Its modularity and flexibility, together with accurate control and reliability, have been carefully designed in order to fulfil almost all the requirements of power supply systems for modern High Energy Physics Experiments. The SY527 system is designed to power a whole range of detectors: in particular, it is most appropriate for silicon strip detectors thanks to the existence of floating power supply boards.
The system is organized into "crates"; each crate is a 19" wide 8U high euro-mechanics rack. The modules bearing the output channels (Channel Boards) consist of 6U plug-in modules; the remaining 2U are dedicated to house the system's fan tray unit.
Up to 10 Channel Boards may be plugged into a single crate. Different plug-in modules are available (Positive, Negative, Floating Power Supply and Distributor Boards) and can be freely mixed in a single system in order to obtain the configuration required by the detectors in the experiment.
Both the Power-On and the Channel Out Enable of the System can be performed locally or via remote signals sent to front panel connectors.
Each crate may be controlled locally or remotely. Local control is performed manually through a key-pad and an LCD display located on the front panel. Remote control is performed by means of a video terminal (ANSI VT100 or compatible) plugged into an RS232C connector. In this case, a sophisticated Software User Interface is available, featuring symbolic names for channels, custom status displays and other features designed to help the management of a large number of channels.
Each crate houses an HIGH SPEED (H. S.) CAENET node for the remote control; it allows to link one or more crates to a H. S. CAENET controller.
The Model SY527 can also be configured as H.S. CAENET Controller itself: in this way it allows the control of a multicrate system from a single video terminal plugged in one of the crates. The communication software needed for the operation of a multicrate System is built in every unit.
Two voltage values and two current limit values can be programmed for each power channel. The switching from one value to the other is performed via two external (NIM or TTL) input levels (VSEL, ISEL). The voltage slew-rate may be programmed for each channel. An attempt to change the voltage will result in a linear increase or decrease with time, the rate being determined by the Ramp-up or Ramp-down parameters.
The system can be optionally equipped with an optocoupler board (Mod. A567) that allows to decouple all the external NIM or TTL control signals and the H. S. CAENET line from the detector ground.
If a channel tries to draw a current larger than the programmed limit, it is signalled to be in "overcurrent". The system detects this state as a fault, and may be programmed to react in different ways, namely:
CONSTANT CURRENT
TRIP
All the relevant parameters are kept in a special non volatile memory (EEPROM) so that this information is not lost at power off. The system may be instructed to react to a Power-on or to a Restart bringing all the channels from zero to the programmed value without the User's intervention. If this option is selected, the system will recover smoothly from a power failure or RESET, automatically restoring the status it had before the power interruption.
A SY527 three-phase version (220/380 Vac at 50/60 Hz or 400 Hz is available on request.
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| Size |
8U Eurocard units, 19" wide, 71 cm deep rack type |
| Remote/Local controllable parameters |
Voltage (2 values), Current (2 values), Ramp-up, Ramp-down, Trip-off |
| N. of Channels per board |
Max. of 48 |
| N. of Plug-in Boards |
10 per Crate |
| N. of crates |
Max. of 100 connected on the same H.S. CAENET Network |
| Shipping weight |
25.3 Kg + packaging (mainframe only). |
| Humidity range |
0 to 90%. |
| Operating temperature |
0 to 45 °C. |
| Output voltage temp. Coeff |
Max. 0.005%/°C |
| Local Control Access |
21-key keyboard and Liquid Cristal Display |
| Remote Control Access |
RS232C, CAMAC, VME, IBM/PC |
| Remote/Local monitorable parameters |
Voltage, Current, Channel Status, General Status |
| Alarms |
On TRIP, OVERVOLTAGE, UNDERVOLTAGE, OVERTEMP., FAN FAILURE and POWER FAILURE conditions |
| Restart at Power-on |
Automatic after Power-on or Reset |
| H. V. enable |
Local via Front Panel switch or Remote via NIM/TTL signal |
| Password protection |
On each channel or group of channels |
| DAC, ADC |
14 bit |
| EEPROM |
Non-volatile no-battery memory for all parameters |
| Code |
Description |
| WSY527MBXAA1 |
SY527NEW - Universal Multichannel Power Supply System (Three-phase 400HZ) |
| WSY527MBXAAA |
SY527 - Universal Multichannel Power Supply System |
| WSY527OPTAAA |
A567 - SY527 Optocoupler Board |
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| © 2000 - 2010 CAEN S.p.A. All rights reserved. |
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