How To Install; Mechanical Mounting; Safety Requirements Of Mechanical Installation; Mounting - Danfoss AHF005 Design Manual

How to Install

6 How to Install

6.1 Mechanical Mounting

6.1.1 Safety Requirements of Mechanical
Installation
NOTE
Please observe the filter weight and ensure that proper
lifting equipment is used.
NOTE
When installing the filter use the lifting eyes on both
6 6
sides to lift the filter.
NOTE
Do not use other parts (terminals, enclosures, etc.).

6.1.2 Mounting

The filters are available in IP00 and IP20 and for both IP ratings
the following guidance must be followed during installation:
•
All filters must be mounted vertically with the
terminals at the bottom
•
Do not mount the filter close to other heating
elements or heat sensitive material (such as wood)
IP00:
•
The surface temperature of the IP00 filters can
exceed 70°C and a hot surface warning label is
placed on the filter
IP20:
•
Top and bottom clearance is minimum 150 mm
•
The surface temperature of the IP20 filters does not
exceed 70°C
•
The filter can be side-by-side mounted with the
frequency converter and there is no requirement for
spacing between then
6.1.3 Recommendations for Installation in
Industrial Enclosures
To avoid high frequency noise coupling keep a minimum
distance of 150 mm (5.91 inches) to:
- mains/supply wires
- motor wires of frequency converter
- control- and signal wires (voltage range < 48 V)
24
AHF005/010 Design Guide
To obtain low impedance HF-connections, grounding, screen-
ing and other metallic connections (e.g. mounting plates,
mounted units) should have a surface as large as possible to
metallic ground. Use grounding and potential equalisation
wires with a cross section as large as possible (min. 10 mm
thick grounding tapes. Use copper or tinned copper screened
wires only, as steel screened wires are not suitable for high
frequency applications. Connect the screen with metal clamps
or metal glands to the equalisation bars or PE-connections.
Inductive switching units (relay, magnetic contactor etc.) must
always be equipped with varistors, RC-circuits or suppressor
diodes.

6.1.4 Ventilation

The filters are cooled by means of air circulation. Consequently
the air needs to be able to move freely above and below the
filter.
When mounting the filters in panels or other industrial
enclosures it must be ensured that there is a sufficient airflow
through the filter to reduce the risk of overheating the filter
and the surrounding components.
If other heat sources (such as frequency converters) are instal-
led in the same enclosure, the heat they generate also needs
to be taken into account when dimensioning the cooling of
the enclosure.
The filters have to be mounted on a wall in order to guide air
through the gap between the wall and the filter. In installa-
tions (e.g. panels) where the filter is mounted on rails, the filter
will not be sufficiently cooled because of false airflow and
therefore a back plate can be ordered separately. See follow-
ing illustration.
®
MG.80.C3.02 - VLT is a registered Danfoss trademark
Danfoss part number
130B3283
130B3284
130B3285
130B3286
130B3287
130B3288
2
) or
Back plate
X1
X2
X3
X4
X5 and X6
X7 and X8