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EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
ea1974@elektroautomatik.de
PSI 9000 WR 3U Slave Series
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 and constant voltage
operation. The socket is also used to connect the power supply to compatible elec-
tronic 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”:
•
PSI 9000 WR 3U / PSI 9000 3U SLAVE
•
PSI 9000 2U - 24U
•
ELR 9000
•
EL 9000 B / EL 9000 B HP / EL 9000 B 2Q
•
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 PSI 9000 WR 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 to create a
master-slave system. For a PSI 9000 WR 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. These can theoretically have a
length of up to 1200 m, but it is recommended to keep the connections as short as
possible.