J. T. Eaton Liquid-Cooled Drives LCX9000 - Manual (Page 32)

LCX9000 Liquid-Cooled Drives User Manual
2-10 For more information visit: www.EatonElectrical.com MN04005001E
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 2-10 shows a simplified example of the cooling system as well as an example of the
connections between the drives and the cooling system.
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.
FE FE FE
=
= = =
34.5°C
30.0°C
26.1°C
18.0°C
* * * *
* * * *
Heat Excha
n
ger
TE
≈