2-24 (28) 2UEA001270 Rev. F ACS2000 User manual
Chapter 2 - Power electronics and cabinet features
2.6 Cooling
The air cooling unit feeds air to the main power electronic components to
transfer heat out of the cabinet.
The standard cooling fan is a 3.8 kW unit with the following performance
characteristics:
• Power: 3.8 kW
• Airflow capacity: 8500 m
3
/h [5000 cfm]
• Pressure: 600 Pa [2.4 in. H
2
0]
• Speed: 1280 rpm
An optional redundant fan can be installed on top of the drive.
Table 2-5 Fan location and quantity
2.6.1 Function
The fan unit is switched on by the control system of the drive when the DC
link is charged. The fan runs continuously for a preset time after the main
power has been switched off to circulate air that cools the drive
components. Air enters the front of the cabinet through ventilation grills,
passes through the compartments and exits via the fan out the top of the
drive.
Location Frame 1 Frame 2 Frame 3
Standard fan(s) Internal 1 1 1
External 0 1 2
Number of redundant fans External 1 1 1
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