Danfoss iC7-Automation - Cooling Requirements; General Cooling Requirements

Design Guide | iC7-Automation Air-cooled Enclosed Drives Mechanical Installation
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Figure 14: Installing the IP21 Top Cover
1 Top cover 2 Top cover brackets
5.6 Cooling Requirements
5.6.1 General Cooling Requirements
The power units produce heat in operation. The fans circulate air and decrease the temperature of the drive. Make sure that there is
sufficiently free space around the drive.
Some free space in front of the drive is also necessary for maintenance. It must be possible to open the cabinet door. 2 or more drives can
be installed side by side.
All the product variants have a segregated cooling channel. The air flow enters the segregated cooling channel through the front grill or
the back grill of the plinth. There is an auxiliary cooling channel for the control compartment. There are 3 cooling methods available:
l Default cooling
l Cooling air output flange option
l Back-channel cooling option
The air must move freely and efficiently through the cabinet and the drive. Make sure that the hot air goes out of the cabinet and does
not come back into the cabinet.
Make sure that the temperature of the cooling air does not become higher than the maximum ambient operating temperature or lower
than the minimum ambient operating temperature of the drive.
Table 7: Air Flow of Different Fans of the Cabinet
Cabinet
Main cooling channel [m
3
/hr (cfm)] Auxiliary cooling channel [m
3
/hr (cfm)]
FE9 340 (200) 102 + 2 x 265 (60 + 2 x 156)
FE10 340 (200) 204 + 3 x 185 (120 + 3 x 109)
AE10, IE10 2706 (1623) 1050 (618)
AE11, IE11 2706 (1623) 1480 (871)
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