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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
PSB 9000 3U Series
Examples of the type 1 terminal:
•
90° up or down
•
space saving in depth
•
no bending radius
•
horizontal lead
•
space saving in height
•
large bending radius
2.3.6
Grounding of the DC terminal
Grounding one of the DC terminal poles is allowed. Doing so can result in a potential shift of the grounded pole
against PE.
Because of insulation, there is a max. allowed potential shift of the DC terminal poles, which also depends on the
„1.8.3. Specific technical data (EU models)“
2.3.7
Connecting the analog interface
The 15 pole connector (Type: Sub-D, D-Sub) on the rear side is an analog interface. To connect this to a control-
ling hardware (PC, electronic circuit), a standard plug is necessary (not included in the scope of delivery). It is
generally advisable to switch the device completely off before connecting or disconnecting this connector, but at
least the DC terminal.
The analog interface is galvanically isolated from the device internally. Therefore do not con-
nect any ground of the analog interface (AGND) to the DC minus terminal as this will cancel
the galvanic isolation.
2.3.8
Connection of remote sense
Both pins „NC“ of the Sense connector must not be wired!
•
Remote sensing is only effective during constant voltage operation (CV) and for other regulation
modes the sense input should be disconnected, if possible, because connecting it generally
increases the oscillation tendency
•
The cross section of the sense cables is noncritical. Recommendation for cables up to 5 m:
use at least 0.5 mm²
•
Sense cables should be twisted and laid close to the DC cables to damp oscillation that could
occur when running the device in source mode. If necessary, an additional capacitor should
be installed at the load/consumer to eliminate oscillation
•
The + sense cables must be connected to + on the load/source and - sense to - at the load/
source, otherwise the sense input could be damaged. For an example see Figure 9 below.
•
In master-slave operation, the remote sensing should be connected to the master unit only
