User manual

36
© 2006, Elektro-Automatik GmbH & Co. KG
Irrtümer und Änderungen vorbehalten
EN
© 2009, Elektro-Automatik GmbH & Co. KG
About the power supply
3.2 Scope of delivery
1 x Power supply unit
1 x Printed user manual
1 x Mains cord
4. General
4.1 Prologue / Warning
This user instruction manual and the device are intended to be
used by users who know about the principle of a power supply.
The handling of the device should not be left to persons who are
unaware of the basic terms of electrotechnology, because these
are not described in this manual. Inappropriate handling and
non-observance to the safety instructions may lead to a damage
of the device or loss of warranty!
4.2 Cooling
The air inlets in the front and the air outlets at the rear have to
be kept clean to ensure proper cooling. Take care of at least
10cm distance at the rear to any surrounding objects in order to
guaranteeunimpededairow.
4.3 Opening the device
When opening the unit or removing parts from the inside with tools
there is risk of electric shock by dangerous voltages. Open the unit
only at your own risk and disconnect it from the mains before.
Any servicing or repair may only be carried out by trained person-
nel, which is instructed about the hazards of electrical current..
5. Installation
5.1 Visual check
After receipt, the unit has to be checked for signs of physical
damage. If any damage is found, the unit may not be operated.
Also contact your dealer immediately.
5.2 Mains connection
The unit is grounded via the mains cord. Thus the unit may only be
operated at a mains socket with grounding contact. This must not
be interrupted by an extension cable without ground conductor!
The unit is fused with a 5 x 20mm safety fuse (for value see techni-
cal specs table), which is located in the fuseholder at the rear.
5.3 DC output terminal
The power output is located on the front of the device. It is per-
manent short-circuit-proof.
The output is not fused! In order to avoid damage to the load ap-
plication, always take care for the nominal values of the load.
The cross section of the leads depends on several conditions,
like the output current, the lead length and the ambient tempe-
rature.
Up to 1.5m lead length we recommend to use:
up to 10A: 0,75mm² up to 15A: 1,5mm²
up to 30A: 4mm² up to 40A: 6mm²
up to 60A: 16mm² up to 120A: 35mm²
per cable(exiblewire).
The outputs “+” and “-“ are not grounded, so that one of them
may be grounded if necessary.
Attention! When grounding one of the output poles always
check if one of the poles of the load (eg. electronic load) is
also grounded. This could result in a short-circuit!
Attention! Notice the potential shift of the output poles
when using series connection! Grounding is hereby only
recommended at the pole with the lowest potential against
ground.
5.4 Terminal „Sense“ (Remote sense)
In order to compensate the voltage drop along the load leads
(max. 1V per lead), the power supply can „sense“ the voltage at
the load instead at the output. It will regulate the output voltage
so that the desired voltage is provided to the load.
The remote sense feature is wired with correct polarity to the
terminal System Bus at the rear.
(+) Sense must only be connected to (+) at the load
application and (–) Sense must only be connected to
(–)! Else both systems can take damage.
For additional information also see section „10.1 Remote sen-
se“.
5.5 Interface card slot
The unit can be equipped with an optional interface card. The
slot to insert the card is located at the rear side. Further informa-
tion about the interface cards can be found in section „8. Digital
interfaces“.
!