Installation And Connection; Mechanical Installation; Installation Environment; Mounting Considerations - WEG CFW700 Serie Manual Del Usuario

Installation and Connection

3. INSTALLATION AND CONNECTION

3.1 MECHANICAL INSTALLATION

3.1.1 Installation Environment

Avoid installing the inverter in an area with:
Direct exposure to sunlight, rain, high humidity, or sea-air;
Inflammable or corrosive gases or liquids;
Excessive vibration;
Dust, metallic particles, and oil mist.
Environment conditions for the operation of the inverter:
Inverter surrounding temperature: from -10 ºC up to Ta according to the table B.3.
For temperatures around the inverter greater than Ta and smaller than 60 °C (sizes A, B, C
and D) and 55 °C (size E), it is necessary to apply current reduction of 2 % for every degree
Celsius (or 1.11 % each °F) up to Ta.
Humidity: from 5 % to 90 % non-condensing.
Altitude: up to 1000 m (3,300 ft) - standard conditions (no derating required).
From 1000 m to 4000 m (3,300 ft to 13,200 ft) - current derating of 1 % each 100 m (or 0.3
% each 100 ft) above 1000 m (3,300 ft) 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, 230 V for 220...230 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 EN50178 and UL508C) with non-conductive pollution.
Condensation shall not originate conduction through the accumulated residues.

3.1.2 Mounting Considerations

External dimensions, fixing holes position and net weight of the inverter are presented at figures
B.7 and B.8. Please refer to figures B.9 to B.13 for more details of each inverter size.
Install the inverter upright on a flat surface. First place the screws on the surface where the
drive is going to be installed, install the drive and then tighten the screws.
Size E inverters with N1 option (CFW700E...N1...):
After fixing the inverter, install the upper Nema 1 kit on the inverter using the two M8 screws
provided with the product.
Let the minimum clearances specified in figure B.8 in order to allow air circulation for cooling. It
is possible to assembly sizes A, B and C inverters with IP20 protection degree (CFW700... 20...)
side by side without lateral spacing, i.e., with the D distance presented in figure B.8 equal to zero.
Do not install heat sensitive components right above the inverter.
ATTENTION!
When arranging two or more inverters vertically, respect the minimum
clearance A + B (figure B.8) and provide an air deflecting plate so that the
heat rising up from the bottom inverter does not affect the top inverter.
Provide conduit for physical separation of the signal, control, and power
conductors (refer to item 3.2 - Electrical Installation).
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