Installation And Connection; Mechanical Installation; Environmental Conditions; Positioning And Mounting - WEG MW500 User Manual

Installation and Connection

3 INSTALLATION AND CONNECTION

3.1 MECHANICAL INSTALLATION

3.1.1 Environmental Conditions

Avoid:
Direct exposure to sunlight.
„
Inflammable, corrosive liquids or gases.
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Metallic particles or oil mist.
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Environmental conditions permitted for the operation of the inverter:
Ambient temperature surrounding the inverter: from 0 ºC (32 °F) until:
„
40 ºC (104 °F) - Nema4x/IP66 (mounted on the wall).
50 ºC (122 °F) - Nema4x/IP66 (mounted integrated on the motor).
For temperatures surrounding the inverter higher than the specifications above, it is necessary
„
to apply a derating on the current of 2 % for each Celsius degree ( or 1.11 % each °F), limited
to an increase of 10 ºC (50 °F).
Air relative humidity: 5 % to 90 % non-condensing.
„
Maximum altitude: up to 1000 m (3.300 ft) - standard conditions (no derating required of
„
current).
From 1000 m to 4000 m (3.300 ft to 13.200 ft) current derating of 1 % each 100 m (or 0.3 %
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each 100 ft) above 1000 m (3.300 ft) altitude.
From 2000 m to 4000 m (6.600 ft to 13.200 ft) maximum voltage reduction (480 V for 380...480 V
„
models) of 1.1 % for each 100 m (330 ft) above 2000 m (6.600 ft) altitude.
Pollution degree: 2 (according to EN50178 and UL508C), with non-conductive pollution.
„
Condensation must not originate conduction through the accumulated residues.

3.1.2 Positioning and Mounting

The external dimensions, the net weight (mass) of the inverter and the suggested torque values
are presented in Figure B.1 on page 131
on page 127.
Integrate the motor
For assembling of the inverter coupled to the motor follow the step by step in
page 137 of APPENDIX D - MOUNTING INSTRUCTIONS on page
Wall mounted
For assembling of the inverter in the wall follow the step by step in
APPENDIX D - MOUNTING INSTRUCTIONS on page
8 | MW500
of APPENDIX B - TECHNICAL SPECIFICATIONS
137.
Figure D.1 on
137.
Figure D.2 on page 138 of