VLT
®
5000/6000/8000 Series
■
Pre-installation
The most important part of the mechanical
instal
-lation is the pre-installation planning. Neglecting
this planning may very well result in extra work
during and after the installation
Before you install your VLT frequency converter you
should select the best possible operational site.
Consider the following in the pre-installation plan:
•
Ambient operating temperature.
•
Installation method.
•
The position of the VLT frequency converter.
•
The cable routing.
•
Ensure that the power source supplies the
correct voltage and necessary current.
•
If the VLT frequency converter is without
built-in mains disconnector and fuses, ensure
that the external disconnector or fuses have
the correct current rating.
■
Installation site
The VLT
frequency converter must be
installed vertically.
The VLT frequency converter is cooled by means of
air circulation. For the unit to be able to release its
cooling air, the minimum distance over the unit must
be as shown in the table under Mechanical Dimension.
To protect the unit from overheating, it must be
ensured that the ambient temperature does not rise
above the max. temperature stated for the VLT
frequency converter and that the 24-hour average
temperature is not exceeded. The max. tempe-rature
and 24-hour average can be seen from the General
Technical Data in the Operating Instructions.
If the ambient temperature is in the range of
45
-55 C, derating of the VLT frequency
converter will become relevant, see Derating
for ambient temperature.
The service life of the VLT frequency converter will
be reduced if derating for ambient temperature
is not taken into account.
■
Installation of VLT 5300-5500 380-500 V, VLT 6350-6550 380-460 V and VLT 8350-8550
380-480 Volt Nema 1 (IP 20) and IP 54
Cooling
All units in the above-mentioned series require a
minimum space of 400 mm (15.75 in) above the
enclosure and must be installed on a plane floor. This
applies to both Nema 1 (IP 20) and IP 54 units.
Side-by-side
Nema 1 (IP 20) and IP 54
All Nema 1 (IP 20) and IP 54 units in the
above-mentioned series can be installed side by
side without any space between them, since these
units do not require cooling on the sides.
MG.56.A2.02 - VLT is a registered Danfoss trademark
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