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EA Elektro-Automatik GmbH
Helmholtzstr. 31-33 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
PS 9000 T Series
1.9
Construction and function
1.9.1 General description
The DC laboratory power supplies of the PS 9000 T series are especially suitable for the use in test and develop-
ment applications, in laboratories and research. The “T” in the series names stands for tower and point for the
upright enclosure design which saves space on laboratory desks and test equipment racks.
The front USB port offers the possibility to record data in every operation mode to USB stick for later analysis.
The used file type CSV enables easy transfer to tools like Microsoft Excel, where the data can be visualised and
processed.
For remote control using a PC or PLC the devices are provided as standard with a USB port on the back side,
which can be optionally extended to a 3-way interface with USB, Ethernet and a galvanically isolated analog port,
all retrofittable by the user. The configuration of the interfaces, if necessary at all, is simple. Thus the power sup
-
plies may, for example, be operated with other power supplies or even other types of equipment or controlled by
external hardware using the digital interfaces.
Both digital interface support the standard protocols ModBus RTU and SCPI. For the implementation into National
Instruments LabView suitable VIs are included in the package.
All models are controlled by microprocessors. These enable an exact and fast measurement and display of actual
values.
1.9.2 Block diagram
The block diagram illustrates the main components inside the device and their relationships.
There are digital, microprocessor controlled components (KE, DR, BE), which can be target of firmware updates.
Power block
Controller
(DR)
Commu-
nication
(
KE
)
HMI (BE)
DC
ETH
USB
Ana
log
PS/PSI 9000 T
Block diagram
USB
AC
=
≈
Sense
opt.
