Rockwell Automation 20G PowerFlex 755 IP00 NEMA/UL Open Drive - Frames 8-10 - Manual (Page 18)

18 Rockwell Automation Publication 750-IN020C-EN-P - May 2012
PowerFlex 755 IP00, NEMA/UL Open Type Drive
Figure 1 - Dual Airflow System
Figure 2 - Intake Duct Details
➌
➋
➍
➊
Ventilation Requirements
No. Free Area Description
➊ 780 cm
2
(120.9 in.
2
) Enclosure
Cooling
➋ Enclosure Fans (1)
(1) Enclosure fans are required and must meet or exceed the
performance shown in Figure 5 . In addition, the fans should be
mounted as high as possible on the door and aligned with the
front of the drive assembly.
➌ See Important statement below Drive Power
Cooling
➍ 811.6 cm 2 (125.8 in. 2 )
Enclosure Cooling
Drive Power Cooling
Shown with optional hood and inlet filter.
IMPORTANT For vertical mounting applications a duct section must be fabricated to fit
between the gasket on the drive and the inside of the enclosure door.
Depending on the enclosure used, the drive mounting location in the enclosure
(set-back) can range between 12.7…54.5 mm (0.50…2.13 in.). To assure
sufficient Control Pod access, the maximum set-back of the drive behind the
door is 54.5 mm (2.13 in.). The duct must contact and slightly compress the
gasket to seal the drive power cooling air from the enclosure cooling air.
Reference the dimensions provided in
Figure 2 .
410.5
(16.16)
451.0
(17.75)
114.3
(4.50)
87.2
(3.43)
46.7
(1.84)
45
°
Duct must contact gasket
when door is closed
Gasket
Duct
(User Supplied)
Upper Vent
Filter not shown for clarity