The air must move freely and efficiently through the cabinet and the drive. There must be a
minimum of 30 cm of space above the cabinet without obstacles that can stop the airflow.
Make sure that the hot air goes out of the cabinet and does not come back into the cabinet.
The power loss of the AC drive can change significantly, when the load, the output frequency
or the switching frequency changes. It is useful to know the power loss, when you plan the
cooling equipment in an electrical room. Use this formula to calculate the approximate
power loss of the drive in nominal conditions.
P
loss
[kW] = P
mot
[kW] x 0.025
It is possible that there will be an increase of 0-0.5% in the power loss when you have options
in the cabinet.
Fig. 17: The circulation of cooling air
MOUNTING
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