WEG CFW501, User Manual

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CFW501 | 9
Installation and Connection
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3 INSTALLATION AND CONNECTION
3.1 MECHANICAL INSTALLATION
3.1.1 Environmental Conditions
Avoid:
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Direct exposure to sunlight, rain, high humidity or sea-air.
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Inflammable or corrosive liquids or gases.
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Excessive vibration.
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Dust, metallic particles or oil mist.
Environmental conditions permitted for the operation of the inverter:
„
Temperature surrounding the inverter: from 0 ºC (32 ºF) to the nominal temperature
specified in table B.2 .
„
For temperatures surrounding the inverter higher than the specifications above, it is
necessary to apply a 2 % of current derating for each Celsius degree, limited to an
increase of 10 ºC (50 ºF).
„
Air relative humidity: 5 % to 95 % non-condensing.
„
Maximum altitude: up to 1000 m (3.300 ft) - nominal conditions.
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1000 m to 4000 m (3.300 ft to 13.200 ft) - 1 % of current derating for each 100 m
(328 ft) above 1000 m of altitude.
„
From 2000 m to 4000 m (6.600 ft to 13.200 ft) above sea level - maximum voltage
reduction (240 V for 200...240 V models and 480 V for 380...480 V models) of 1.1 %
for each 100 m (330 ft) above 2000 m (6.600 ft).
„
Pollution degree: 2 (according to EN 50178 and UL 508C), with non-conductive
pollution. Condensation must not originate conduction through the accumulated
residues.
3.1.2 Positioning and Mounting
The external dimensions and the drilling for the mounting, as well as the net weight
(mass) of the inverter are presented in figure B.1 . For further details of each frame, refer
to figure B.4 , figure B.5 , figure B.6 and figure B.7 .
Mount the inverter in the upright position on a flat and vertical surface. First, put the
screws on the surface where the inverter will be installed, install the inverter and then
tighten the screws observing the maximum torque for the screws indicated in figure B.1 .
Allow the minimum clearances indicated in figure B.2 , in order to allow the cooling air
circulation. Do not install heat sensitive components right above the inverter.
ATTENTION!
„
When installing two or more inverters vertically, respect the minimum
clearance A + B (as per figure 3.2 ) and provide an air deflecting plate
so that the heat rising up from the bottom inverter does not affect the
top inverter.
„
Provide independent conduits for the physical separation of signal,
control, and power cables (refer to the section 3.2 - Electrical Installation ).