© EA Elektro-Automatik in 2022, this information is subject to change without notice
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06230820_manual_psi_10000_3u_15kw_en_01
1.9.10
“Share BUS” connector
The two BNC sockets (50 Ω type) labeled “Share BUS” form a digital, passed-through
Share bus. This bus is bidirectional and connects the bus master unit via “Share BUS
Output” to the next slave unit (“Share BUS Input”) etc., for use in parallel operation (mas-
ter-slave). BNC cables of suitable length can be obtained from us or electronics stores.
Basically, all 10000 series are compatible on this Share bus, though only connection
of the same device type, i. e. power supply with power supply or electronic load with
electronic load is supported by the devices for master-slave.
A PSI 10000 series model can be used in combination other models of PSI 10000 series,
but also with PS 10000 series models as cost saving slave alternative.
Figure 5
- Share Bus
1.9.11
“Sense” connector (remote sensing)
In order to compensate for voltage drops along the DC cables to the load or external
source, the Sense input (2 plugs included in delivery, one each for positive and nega-
tive pole) can be connected to the load resp. external source. The maximum possible
compensation is given in the technical specifications.
In a master-slave system it’s intended to wire remote sensing only
to the master which would then forward the compensation to the
slaves via Share BUS.
The Sense cover must be installed during operation, because there
can be hazardous voltage on the sense lines! Reconfiguration on
the Sense terminals is only permissible if the device is disconnected
from AC supply and all DC sources!
Figure 6 - Remote sensing terminals
1.9.12
Master-Slave bus
A further port is provided on the back 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. Connection is made using standard CAT5 cables. These
can theoretically have a length of up to 1200 m, but it’s recommended to keep the con-
nections as short as possible.
Figure 7
- Master slave bus ports
