Installation And Connection; Environmental Conditions; Mechanical Installation - WEG DBW04 Serie Manual Del Usuario

3 INSTALLATION AND CONNECTION

This chapter describes the DBW04 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:
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 surrounding
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the dynamic braking module).
From 45 ºC to 55 ºC (113 °F to 131 °F) - current derating of 2 % each °C (or 1.11 % each °F)
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above 45 ºC (113 °F).
Air relative humidity: 5 % to 95 % 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 100 m (or
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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
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(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.
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Condensation must not originate conduction through the accumulated residues.

3.2 MECHANICAL INSTALLATION

Mount the module in the upright position on a flat surface.
Observe the clearances shown in
External dimensions and position of fixation points are presented in
DATA on page 31.
First put the screws on the surface where the module will be installed, install the module and
then tighten the screws. Four M6 screws are used (recommended torque: 8.5 N.m) for fixing
the module.
Do not install heat sensitive components just above the module.
Figure 3.1 on page 14 to allow the circulation of cooling air.
Installation and Connection
Section 7.3 MECHANICAL
DBW04 | 13