Share" Connector; Sense" Connector (Remote Sensing); Master-Slave Bus - Elektro-Automatik EL 9000 B Slave serie Betriebsanleitung

1.9.6

"Share" connector

The 2 pole socket ("Share") on the back side of the device is provided for connection
to equally named sockets on compatible electronic loads when establishing parallel
connection where symmetric current distribution is required, as well as compatible
power supplies to build a two-quadrants operation setup. Following power supply
and electronic load series are compatible:
• PSI 9000 2U - 24U
• ELR 9000
• EL 9000 B / EL 9000 B HP / EL 9000 B 2Q
• PSE 9000
• PS 9000 1U / 2U / 3U *
* The revision (of hardware) is stated on the type plate. In case the type plate does not state the revision, the device
always has hardware revision 1.
1.9.7

"Sense" connector (remote sensing)

The devices of series EL 9000 B 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 from the source, the
Sense input can be connected to the source. The maximum possible compensation
is given in the technical data.
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 back side of the device, comprising two RJ45 sockets, which
enables multiple devices of the same model to be connected via a digital bus (RS485) to create
a master-slave system. For an EL 9000 B 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. It can theoretically have a length of up to 1200
m, but it is recommended to keep the connections as short as possible.
EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
EL 9000 B Slave Series
www.elektroautomatik.de
ea1974@elektroautomatik.de
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