Technical data

Rexroth IndraDyn H Notes Regarding Application 9-11
DOK-MOTOR*-MBS-H******-PR02-EN-P
Liquid Cooling System
Machines and systems can require liquid cooling for one or more
working components. If several liquid-cooled drive components exist,
they are connected to the heat removal device via a distribution unit.
motor
motor 1
motor 2
motor 3
motor 4
heat removal device
heat
output
heat
output
upstream
coolant
heat removal device
main distributor
control cabinet air
cooler
coolant temperature
controller
control
coolant lines
distributor
cabinet
Fig. 9-17: General arrangement of cooling systems with one and more drive
components
The heat-removal device carries off the total heat of all components
connected to the cooling system. The heat is transferred to a higher-
level coolant which provides a temperature-controlled medium to
maintain the required temperature level at the components that are to be
cooled.
There are three different types of heat removal devices (see Fig. 9-18).
They are identified by the type of the heat exchanger between the
different media:
1. Air-to liquid cooling unit
2. Liquid-to-liquid cooling unit
3. Cooling unit
A heat removal device includes a heat exchanger, a coolant pump and a
coolant container (see Fig. 9-16).
Heat removal device