Airflow and ventilation requirements – Rockwell Automation 20D PowerFlex 700S/700H Frames 10...14 IP00, NEMA/UL Open Power Structures User Manual
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Rockwell Automation Publication PFLEX-IN020C-EN-P - July 2013
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PowerFlex 700S and 700H Frames 10...14 IP00, NEMA/UL Open Power Structures
Airflow and Ventilation Requirements
During drive operation, air is circulated by fans at the bottom of the power
structure. If the structure is placed in the upper portion of the enclosure, the fan
will be in the middle portion of the enclosure. Therefore, to achieve sufficient
cooling of the drive, each enclosure must provide:
• Openings for cooling air intake in the door/front panel at and/or below
the level of the fans.
• Openings for hot air exhaust at the top of the enclosure.
ATTENTION: To guard against equipment damage caused by excessive heat,
proper airflow must be available at all times. Refer to the guidelines below.
IMPORTANT
To allow free air circulation, the protective screen/cover at the bottom of the
enclosure must be a mesh sheet metal screen. Additionally, the busbar screen/
cover and choke upper support must be equipped with holes.
IMPORTANT
If a flat roof is used, mount a V-shaped air guide on the underside of the roof to
direct the air flow horizontally.
Side View
Air Flow