Installation And Connection; Environmental Conditions - WEG DBW03 Serie Manual Del Usuario

Installation and Connection

3 INSTALLATION AND CONNECTION
This chapter describes the DBW03 electrical and mechanical installation procedures.
The guidelines and suggestions must be followed aiming personnel and equipment
safety, as well as the proper operation of the dynamic braking module.

3.1 ENVIRONMENTAL CONDITIONS

Avoid installing the inverter in an area with:
Direct exposure to sunlight, rain, high humidity, or sea-air.
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Inflammable or corrosive gases or liquids.
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Excessive vibration.
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Dust, metallic particles, and oil mist.
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Environment conditions for the operation of the inverter:
Temperature: -10 ºC to 45 ºC (14 °F to 113 °F) – nominal conditions (measured
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surrounding the dynamic braking module).
From 45 ºC to 55 ºC (113 °F to 131 °F) - current derating of 2 % each °C (or 1.11 %
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each °F) above 45 ºC (113 °F).
Air relative humidity: 5 % to 90 % non-condensing.
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Altitude: up to 1000 m (3.300 ft) - nominal conditions.
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From 1000 m to 4000 m (3.300 ft to 13.200 ft) - 1 % of current derating for each
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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
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reduction (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
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pollution. Condensation must not originate conduction through the accumulated
residues.
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