Exchanger

LCX9000 Liquid-Cooled Drives User Manual

January 2007

To facilitate the cleaning and venting of the coolant circulation, installation of a bypass valve in the main line and valves at each drive inlet is recommended. Open the bypass valve and shut the valves to the drive when cleaning and airing the system. At start-up, the bypass valve must be closed and the valves to the converters opened.

Figure 2-10shows a simplified example of the cooling system as well as an example of the connections between the drives and the cooling system.

 

 

 

TE

 

 

 

 

30.0°C

18.0°C

*

*

*

*

Exchanger

 

FE

FE

FE

 

=

=

=

=

 

 

Heat

 

 

 

*

*

*

*

 

 

 

 

34.5°C

26.1°C

Figure 2-10: Example of Cooling System

Eaton recommends equipping the cooling system with pressure and flow supervision (FE). The flow supervision can be connected to digital input function External fault. If the coolant flow becomes too low, the drive will be stopped.

The flow supervision and other actuators, e.g. a constant flow valve, are available as options. The options should be mounted at the junction of the main line and the branching line to the element, indicated with an asterisk (*) in Figure 2-10.

2-10

For more information visit: www.EatonElectrical.com

MN04005001E

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J. T. Eaton LCX9000 user manual 10 Example of Cooling System, Exchanger, Heat