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EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
PSB 9000 3U Slave Series
1.9.5 USB port type B (rear side)
The USB-B port on the rear side of the device is provided for communication with the device,
i.e. monitoring during master-slave operation or full remote control in stand-alone operation,
as well as for firmware updates. The included USB cable can be used to connect the device
to a PC (USB 2.0 or 3.0). The driver is delivered with the device and installs a virtual COM
port. Details for remote control can be found on the web site of the manufacturer or on the
included USB stick.
The device can be addressed via this port either using the international standard ModBus
protocol or by SCPI language. The device recognises the message protocol automatically.
This USB port has no priority over either the other USB port on the front or remote control
from a master unit and can, therefore, only be used for remote control alternatively to these.
However, monitoring is always available.
1.9.6
“Share” connector
The 2 pole WAGO socket “Share” on the rear side of the device is provided for con-
nection to equally named sockets on compatible power supplies series to achieve
a balanced load current distribution during parallel connection. The socket is also
used to connect the power supply to compatible electronic loads, in order to build a
two-quadrants operation setup. Following power supply and electronic load series
are compatible on the so-called “Share bus”:
•
PSB 9000 / PSBE 9000
•
PSI 9000 2U - 24U / PSI 9000 3U Slave
•
ELR 9000 / ELR 9000 HP
•
EL 9000 B / EL 9000 B HP / EL 9000 B 2Q / EL 9000 B Slave
•
PSE 9000
•
PS 9000 1U / 2U / 3U *
* From hardware revision 2, see type label of those series (in case it does not show “Revision” on type label, it is revision 1)
1.9.7
“Sense” connector (remote sensing)
The devices of series PSB 9000 3U Slave are supposed to run as slave units in a
master-slave system where the remote sensing feature is only used and connected
to the master unit. For stand-alone operation outside of a master-slave setup this
feature can be wired and used on the Slave mode as well.
In order to compensate for voltage drops along the DC cables to the load, the Sense
input can be connected to the load. The maximum possible compensation is given
in the technical specifications.
In order to ensure safety and to comply to international directives, insulation of high voltage models, i. e. such with
a nominal voltage of 500 V or higher, is ensured by using only the two outer pins of the 4-pole terminal. The inner
two pins, marked with NC, must remain unconnected.
1.9.8 Master-Slave bus
A further port is provided on the rear side of the device, comprising two RJ45 sockets,
which enables multiple identical devices to be connected via a digital bus (RS485)
to create a master-slave system. For a PSB 9000 3U Slave device this interface is
essential, because it is configured and controlled regarding values and status via
this port by a master unit.
Connection is made using standard CAT5 cables.
