Caen ELS PreDAC, Руководство пользователя, Страница: 13 / 52

PreDAC User’s Manual
13
Pin # Function
1-2
Reserved
3-4
Not present
5-8
General purpose I/O
9-10
External interlock
The external interlock pins can be used to detect an external event, which can
be used to trigger the external interlock fault and to switch the present voltage outputs
to a zero level (see Interlock and general I/O connector section for more information).
Please note that these interlock pins are galvanically isolated from ground.
The General purpose I/O pins are not yet used and they are reserved for future
use on the device.
On the rear panel of the PreDAC there is a small hole that gives access to a reset
button (“RST”), which can be used to reset the unit. Next to the reset button are placed
a RJ45 Ethernet connector (“ETH”), which is used to communicate with the unit and a
Small form-factor pluggable transceiver (“SFP”) which will be used for future updates.
1.3 Features
A host PC is necessary in order to operate the PreDAC unit and properly set/check
the desired parameters (e.g. output voltage).
Please refer to the
Software commands chapter for a complete description of
available commands, their purposes and their syntax.
1.4 Offset calibration
The PreDAC device is already factory-calibrated during the production process.
Gain and offsets are stored in the non-volatile internal memory.
However, user can perform an additional calibration – i.e. a
User Defined
Calibration – for example for nulling application specific offsets.