Control cabinet ventilation (sche‐
matic diagram)
1
Control cabinet
2
Air outlet opening
3
Heat discharge
4
Device in control cabinet
5
Control cabinet fan
6
Filter at air intake opening
Fig. 4-9:
Control cabinet ventilation (schematic diagram)
Only clean air gets into the control cabinet through the filter at the air intake
opening. The control cabinet fan behind the air intake opening conveys the
air into the control cabinet and generates overpressure in the control cabinet.
The overpressure prevents unclean air from getting into the control cabinet
through possibly existing leaky points (leaky cable ducts, damaged seals,
etc.).
Liquid cooling
General information
Cooling devices
There are three types of cooling devices for liquid cooling:
●
Air-liquid cooling unit
●
Liquid-liquid cooling unit
●
Refrigerating unit
Power dissipation in control cabi‐
net
Liquid-cooled drive components dissipate power in the control cabinet in the
form of heat. It may be necessary to include the control cabinet in the liquid-
cooled circuit.
Cooling devices
The cooling device dissipates the sum of all heat output discharged in the
cooling liquid to a higher-level cooling medium. The cooling device provides a
cooling medium with a required temperature and thereby maintains a re‐
quired temperature level in the components being cooled.
There are three different types of cooling devices. The names of the cooling
devices correspond to the kind of heat exchange from one medium to the
other.
DOK-INDRV*-HXX05******-PR02-EN-P
Bosch Rexroth AG
63/407
Rexroth IndraDrive ML Drive Systems with HMU05
Combining the individual components
Содержание Rexroth HMU05.1N Series
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