User manual

Page 24
EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
[e-mail]
EL 9000 B HP Series
1.9.9 “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. For details about this feature
refer to „3.11.2. Parallel operation in master-slave (MS)“ and „3.11.3. Two quadrants
operation (2QO)“. Following power supply and electronic load series are compatible:
• PSI 9000 2U - 24U
• PSI 9000 3UELR 9000
• EL 9000 B / EL 9000 B Slave / EL 9000 B 2Q
• PSE 9000
• PS 9000 1U - 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)
1.9.10 “Sense” connector (remote sensing)
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.
1.9.11 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. 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.