Design Guide | iC7 Series Air-cooled System Modules
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Figure 10: Forbidden Installation Direction of the Inverter Module
The system modules with integration units must be installed in a vertical position.
5.4
Cooling Requirements
5.4.1
General Cooling Requirements
The power units produce heat in operation. The fan circulates air and decreases the temperature of the drive. Make sure that there is
sufficiently free space around the product.
Some free space in front of the drive is also necessary for maintenance. It must be possible to open the cabinet door. When you have 2 or
more system modules, they can be installed side by side.
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.
The air must move freely and efficiently through the cabinet and the drive. There must be a minimum of 200 mm (8 in) of space above
the drive without obstacles that can stop the airflow. Make sure that the hot air goes out of the cabinet and does not recirculate back
into the cabinet.
5.4.2
The Quantity of Cooling Air
Table 8: The Necessary Quantity of Cooling Air
Product
The quantity of cooling air [m
3
/h]
Inverter module with dU/dt & CM Filter
870
AFE & inverter modules without options in the integration unit
920
LCL Filter
970
This quantity of cooling air is sufficient for the power unit. If there are other devices that generate heat inside the cabinet, or if more air
filters are used (for example to have a higher protection rating), increase the surface area of the air intake holes.
5.4.3
Cooling of System Modules
In the system module without an integration unit, the cooling air is taken from below and exhausted from the top.
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